- Lead
- 685
- Total
- 121,347
- vs nation
- D+2.0
- Turnout
- 59.1%
Winnebago County, IL
President margin by year
Place winner margin
President results by year
2024 turnout 59.1% of 205,348 citizens 18+
- Lead
- 3,195
- Total
- 128,160
- vs nation
- R+2.0
- Turnout
- 62.5%
- Lead
- 89
- Total
- 120,055
- vs nation
- R+2.0
- Turnout
- 57.5%
- Lead
- 6,594
- Total
- 119,397
- vs nation
- D+1.7
- Turnout
- —
- Lead
- 16,148
- Total
- 126,031
- vs nation
- D+5.5
- Turnout
- —
- Lead
- 1,042
- Total
- 121,425
- vs nation
- D+1.6
- Turnout
- —
- Lead
- 1,835
- Total
- 109,297
- vs nation
- R+2.2
- Turnout
- —
- Lead
- 1,785
- Total
- 99,910
- vs nation
- R+6.7
- Turnout
- —
Key facts
- 2024 presidential margin
- D+0.6MIT Election Lab
- Population
- 283,2922024 5-year
- Median household income
- $65,8372024 5-year
- White (non-Hispanic)
- 63.8%2024 5-year
- Black
- 11.6%2024 5-year
- Hispanic / Latino
- 15.5%2024 5-year
- Peak Democratic margin
- D+12.8 in 2008MIT Election Lab
- Peak Republican margin
- R+65.9 in 1920MIT Election Lab
- Most similar
- DeKalb County, IL · twin score 87.4
Midterm durability
Total general-election participants divided by same-year citizen voting-age population. These are total ballots or participating voters—not presidential candidate votes.
- 2024 total turnout
- 59.1%121,347 participants ÷ 205,348 CVAP
- 2020→2022 drop-off
- +18.9 ptsVolatile
- Drop-off versus state
- -3.2 ptsPositive means a larger decline than the statewide pattern
- Mechanical 2026 scenario
- 40.2%–43.8%Recent-cycle and two-cycle persistence scenarios; not a forecast
| Election | Participants | CVAP | Turnout | Quality |
|---|---|---|---|---|
| 2016 · Presidential | 120,055 | 208,965 | 57.5% | C/A |
| 2018 · Midterm | 95,017 | 207,448 | 45.8% | C/A |
| 2020 · Presidential | 128,160 | 205,157 | 62.5% | C/A |
| 2022 · Midterm | 89,764 | 205,973 | 43.6% | C/A |
| 2024 · Presidential | 121,347 | 205,348 | 59.1% | C/A |
Sources and methods
- 2016: numerator source 159, denominator source 157; top ticket votes; canonical-complete-contest-floor-v1; allocation share 0.0%; series 148/111.
- 2018: numerator source 159, denominator source 157; top ticket votes; canonical-complete-contest-floor-v1; allocation share 0.0%; series 150/138.
- 2020: numerator source 159, denominator source 157; top ticket votes; canonical-complete-contest-floor-v1; allocation share 0.0%; series 152/2.
- 2022: numerator source 159, denominator source 157; top ticket votes; canonical-complete-contest-floor-v1; allocation share 0.0%; series 154/183.
- 2024: numerator source 159, denominator source 157; top ticket votes; canonical-complete-contest-floor-v1; allocation share 0.0%; series 156/228.
Precinct data
Results by precinct
387 precincts · 122,756 votes
Precinct boundaries and identifiers are cycle-specific. This table does not join rows across years without a validated crosswalk.
| Precinct -14011401 | 623 | 364 | 37 | 1,024 | 60.8% | 35.5% | D+25.3 |
|---|---|---|---|---|---|---|---|
| Precinct -Roscoe 9Roscoe 9 | 400 | 517 | 24 | 941 | 42.5% | 54.9% | R+12.4 |
| Precinct -01060106 | 465 | 411 | 39 | 915 | 50.8% | 44.9% | D+5.9 |
| Precinct -Pecatonica 4Pecatonica 4 | 297 | 592 | 25 | 914 | 32.5% | 64.8% | R+32.3 |
| Precinct -Rockford 14Rockford 14 | 470 | 423 | 20 | 913 | 51.5% | 46.3% | D+5.1 |
| Precinct -Roscoe 1Roscoe 1 | 334 | 556 | 21 | 911 | 36.7% | 61.0% | R+24.4 |
| Precinct -Owen 1Owen 1 | 345 | 539 | 23 | 907 | 38.0% | 59.4% | R+21.4 |
| Precinct -Harlem 21Harlem 21 | 352 | 536 | 15 | 903 | 39.0% | 59.4% | R+20.4 |
| Precinct -Roscoe 6Roscoe 6 | 325 | 550 | 24 | 899 | 36.2% | 61.2% | R+25.0 |
| Precinct -04050405 | 471 | 399 | 27 | 897 | 52.5% | 44.5% | D+8.0 |
| Precinct -02040204 | 477 | 379 | 35 | 891 | 53.5% | 42.5% | D+11.0 |
| Precinct -Harlem 4Harlem 4 | 328 | 545 | 13 | 886 | 37.0% | 61.5% | R+24.5 |
| Precinct -Harlem 1Harlem 1 | 406 | 444 | 31 | 881 | 46.1% | 50.4% | R+4.3 |
| Precinct -Rockford 30Rockford 30 | 367 | 483 | 29 | 879 | 41.8% | 54.9% | R+13.2 |
| Precinct -09060906 | 551 | 301 | 22 | 874 | 63.0% | 34.4% | D+28.6 |
| Precinct -Cherry Valley 3Cherry Valley 3 | 413 | 429 | 31 | 873 | 47.3% | 49.1% | R+1.8 |
| Precinct -Harlem 23Harlem 23 | 374 | 475 | 23 | 872 | 42.9% | 54.5% | R+11.6 |
| Precinct -Harlem 27Harlem 27 | 381 | 459 | 30 | 870 | 43.8% | 52.8% | R+9.0 |
| Precinct -Rockton 2Rockton 2 | 332 | 510 | 27 | 869 | 38.2% | 58.7% | R+20.5 |
| Precinct -Rockton 11Rockton 11 | 409 | 433 | 26 | 868 | 47.1% | 49.9% | R+2.8 |
| Precinct -Roscoe 11Roscoe 11 | 389 | 452 | 24 | 865 | 45.0% | 52.3% | R+7.3 |
| Precinct -Roscoe 2Roscoe 2 | 315 | 525 | 17 | 857 | 36.8% | 61.3% | R+24.5 |
| Precinct -Roscoe 15Roscoe 15 | 390 | 441 | 23 | 854 | 45.7% | 51.6% | R+6.0 |
| Precinct -04020402 | 462 | 347 | 43 | 852 | 54.2% | 40.7% | D+13.5 |
| Precinct -Harlem 17Harlem 17 | 344 | 482 | 24 | 850 | 40.5% | 56.7% | R+16.2 |
| Precinct -14021402 | 427 | 394 | 28 | 849 | 50.3% | 46.4% | D+3.9 |
| Precinct -Harlem 14Harlem 14 | 296 | 528 | 25 | 849 | 34.9% | 62.2% | R+27.3 |
| Precinct -Roscoe 8Roscoe 8 | 332 | 495 | 21 | 848 | 39.2% | 58.4% | R+19.2 |
| Precinct -Harlem 11Harlem 11 | 353 | 475 | 16 | 844 | 41.8% | 56.3% | R+14.5 |
| Precinct -Harlem 24Harlem 24 | 339 | 479 | 26 | 844 | 40.2% | 56.8% | R+16.6 |
| Precinct -Harlem 22Harlem 22 | 356 | 471 | 12 | 839 | 42.4% | 56.1% | R+13.7 |
| Precinct -Rockford 9Rockford 9 | 317 | 499 | 23 | 839 | 37.8% | 59.5% | R+21.7 |
| Precinct -12061206 | 444 | 367 | 26 | 837 | 53.0% | 43.8% | D+9.2 |
| Precinct -Rockton 1Rockton 1 | 352 | 456 | 29 | 837 | 42.1% | 54.5% | R+12.4 |
| Precinct -Harlem 10Harlem 10 | 332 | 480 | 23 | 835 | 39.8% | 57.5% | R+17.7 |
| Precinct -Rockford 8Rockford 8 | 280 | 533 | 19 | 832 | 33.7% | 64.1% | R+30.4 |
| Precinct -Rockton 5Rockton 5 | 376 | 433 | 22 | 831 | 45.2% | 52.1% | R+6.9 |
| Precinct -Rockford 5Rockford 5 | 375 | 423 | 31 | 829 | 45.2% | 51.0% | R+5.8 |
| Precinct -Laona 1Laona 1 | 285 | 521 | 22 | 828 | 34.4% | 62.9% | R+28.5 |
| Precinct -01050105 | 450 | 347 | 30 | 827 | 54.4% | 42.0% | D+12.5 |
| Precinct -Harlem 19Harlem 19 | 351 | 453 | 22 | 826 | 42.5% | 54.8% | R+12.3 |
| Precinct -Rockford 13Rockford 13 | 403 | 389 | 26 | 818 | 49.3% | 47.6% | D+1.7 |
| Precinct -Harlem 16Harlem 16 | 362 | 436 | 17 | 815 | 44.4% | 53.5% | R+9.1 |
| Precinct -Winnebago 1Winnebago 1 | 290 | 494 | 25 | 809 | 35.8% | 61.1% | R+25.2 |
| Precinct -06030603 | 458 | 326 | 24 | 808 | 56.7% | 40.3% | D+16.3 |
| Precinct -14031403 | 433 | 342 | 33 | 808 | 53.6% | 42.3% | D+11.3 |
| Precinct -10071007 | 483 | 293 | 30 | 806 | 59.9% | 36.4% | D+23.6 |
| Precinct -Rockton 6Rockton 6 | 309 | 479 | 17 | 805 | 38.4% | 59.5% | R+21.1 |
| Precinct -Harlem 25Harlem 25 | 357 | 415 | 23 | 795 | 44.9% | 52.2% | R+7.3 |
| Precinct -Roscoe 12Roscoe 12 | 365 | 415 | 15 | 795 | 45.9% | 52.2% | R+6.3 |
| Precinct -Rockford 26Rockford 26 | 351 | 423 | 16 | 790 | 44.4% | 53.5% | R+9.1 |
| Precinct -01040104 | 356 | 399 | 34 | 789 | 45.1% | 50.6% | R+5.4 |
| Precinct -Rockford 31Rockford 31 | 335 | 433 | 19 | 787 | 42.6% | 55.0% | R+12.5 |
| Precinct -Rockford 55Rockford 55 | 348 | 414 | 25 | 787 | 44.2% | 52.6% | R+8.4 |
| Precinct -Rockford 33Rockford 33 | 407 | 355 | 23 | 785 | 51.8% | 45.2% | D+6.6 |
| Precinct -01080108 | 393 | 362 | 27 | 782 | 50.3% | 46.3% | D+4.0 |
| Precinct -04040404 | 398 | 351 | 31 | 780 | 51.0% | 45.0% | D+6.0 |
| Precinct -Rockford 54Rockford 54 | 361 | 387 | 31 | 779 | 46.3% | 49.7% | R+3.3 |
| Precinct -Winnebago 2Winnebago 2 | 284 | 476 | 16 | 776 | 36.6% | 61.3% | R+24.7 |
| Precinct -Cherry Valley 5Cherry Valley 5 | 337 | 412 | 26 | 775 | 43.5% | 53.2% | R+9.7 |
| Precinct -Rockton 3Rockton 3 | 324 | 433 | 17 | 774 | 41.9% | 55.9% | R+14.1 |
| Precinct -03010301 | 440 | 312 | 19 | 771 | 57.1% | 40.5% | D+16.6 |
| Precinct -Harlem 5Harlem 5 | 294 | 453 | 22 | 769 | 38.2% | 58.9% | R+20.7 |
| Precinct -Rockton 8Rockton 8 | 329 | 409 | 27 | 765 | 43.0% | 53.5% | R+10.5 |
| Precinct -Rockford 25Rockford 25 | 394 | 350 | 15 | 759 | 51.9% | 46.1% | D+5.8 |
| Precinct -01070107 | 378 | 353 | 26 | 757 | 49.9% | 46.6% | D+3.3 |
| Precinct -Pecatonica 2Pecatonica 2 | 243 | 492 | 22 | 757 | 32.1% | 65.0% | R+32.9 |
| Precinct -Rockford 32Rockford 32 | 336 | 395 | 25 | 756 | 44.4% | 52.2% | R+7.8 |
| Precinct -Cherry Valley 6Cherry Valley 6 | 302 | 430 | 21 | 753 | 40.1% | 57.1% | R+17.0 |
| Precinct -Harlem 12Harlem 12 | 305 | 436 | 12 | 753 | 40.5% | 57.9% | R+17.4 |
| Precinct -Cherry Valley 1Cherry Valley 1 | 309 | 422 | 20 | 751 | 41.1% | 56.2% | R+15.0 |
| Precinct -01010101 | 387 | 334 | 29 | 750 | 51.6% | 44.5% | D+7.1 |
| Precinct -Roscoe 7Roscoe 7 | 315 | 408 | 24 | 747 | 42.2% | 54.6% | R+12.4 |
| Precinct -12071207 | 420 | 295 | 28 | 743 | 56.5% | 39.7% | D+16.8 |
| Precinct -02030203 | 447 | 266 | 29 | 742 | 60.2% | 35.8% | D+24.4 |
| Precinct -Roscoe 10Roscoe 10 | 322 | 401 | 19 | 742 | 43.4% | 54.0% | R+10.6 |
| Precinct -12011201 | 488 | 234 | 19 | 741 | 65.9% | 31.6% | D+34.3 |
| Precinct -Harlem 2Harlem 2 | 278 | 429 | 27 | 734 | 37.9% | 58.4% | R+20.6 |
| Precinct -Harlem 7Harlem 7 | 280 | 429 | 25 | 734 | 38.1% | 58.4% | R+20.3 |
| Precinct -01020102 | 369 | 346 | 16 | 731 | 50.5% | 47.3% | D+3.1 |
| Precinct -Harlem 15Harlem 15 | 295 | 419 | 13 | 727 | 40.6% | 57.6% | R+17.1 |
| Precinct -Rockton 10Rockton 10 | 300 | 404 | 19 | 723 | 41.5% | 55.9% | R+14.4 |
| Precinct -Cherry Valley 11Cherry Valley 11 | 310 | 381 | 29 | 720 | 43.1% | 52.9% | R+9.9 |
| Precinct -14051405 | 413 | 273 | 33 | 719 | 57.4% | 38.0% | D+19.5 |
| Precinct -Harlem 18Harlem 18 | 300 | 404 | 14 | 718 | 41.8% | 56.3% | R+14.5 |
| Precinct -Rockton 13Rockton 13 | 309 | 390 | 17 | 716 | 43.2% | 54.5% | R+11.3 |
| Precinct -04060406 | 361 | 328 | 26 | 715 | 50.5% | 45.9% | D+4.6 |
| Precinct -03020302 | 390 | 304 | 19 | 713 | 54.7% | 42.6% | D+12.1 |
| Precinct -Harlem 8Harlem 8 | 279 | 423 | 11 | 713 | 39.1% | 59.3% | R+20.2 |
| Precinct -Winnebago 3Winnebago 3 | 230 | 458 | 21 | 709 | 32.4% | 64.6% | R+32.2 |
| Precinct -04010401 | 291 | 388 | 26 | 705 | 41.3% | 55.0% | R+13.8 |
| Precinct -04030403 | 424 | 255 | 22 | 701 | 60.5% | 36.4% | D+24.1 |
| Precinct -06010601 | 319 | 361 | 16 | 696 | 45.8% | 51.9% | R+6.0 |
| Precinct -04070407 | 377 | 297 | 21 | 695 | 54.2% | 42.7% | D+11.5 |
| Precinct -Winnebago 4Winnebago 4 | 256 | 423 | 13 | 692 | 37.0% | 61.1% | R+24.1 |
| Precinct -Roscoe 5Roscoe 5 | 279 | 399 | 13 | 691 | 40.4% | 57.7% | R+17.4 |
| Precinct -Harlem 6Harlem 6 | 286 | 388 | 16 | 690 | 41.4% | 56.2% | R+14.8 |
| Precinct -01030103 | 336 | 333 | 18 | 687 | 48.9% | 48.5% | D+0.4 |
| Precinct -02060206 | 417 | 240 | 29 | 686 | 60.8% | 35.0% | D+25.8 |
| Precinct -Rockford 51Rockford 51 | 296 | 378 | 10 | 684 | 43.3% | 55.3% | R+12.0 |
| Precinct -02050205 | 423 | 234 | 26 | 683 | 61.9% | 34.3% | D+27.7 |
| Precinct -10051005 | 393 | 262 | 20 | 675 | 58.2% | 38.8% | D+19.4 |
| Precinct -Harlem 26Harlem 26 | 324 | 325 | 25 | 674 | 48.1% | 48.2% | R+0.1 |
| Precinct -Pecatonica 3Pecatonica 3 | 219 | 438 | 16 | 673 | 32.5% | 65.1% | R+32.5 |
| Precinct -Roscoe 4Roscoe 4 | 325 | 325 | 22 | 672 | 48.4% | 48.4% | Exact tie |
| Precinct -03060306 | 431 | 204 | 30 | 665 | 64.8% | 30.7% | D+34.1 |
| Precinct -09040904 | 444 | 195 | 23 | 662 | 67.1% | 29.5% | D+37.6 |
| Precinct -03040304 | 375 | 255 | 31 | 661 | 56.7% | 38.6% | D+18.2 |
| Precinct -Rockford 2Rockford 2 | 239 | 397 | 22 | 658 | 36.3% | 60.3% | R+24.0 |
| Precinct -Roscoe 3Roscoe 3 | 281 | 345 | 24 | 650 | 43.2% | 53.1% | R+9.8 |
| Precinct -Durand 1Durand 1 | 187 | 444 | 16 | 647 | 28.9% | 68.6% | R+39.7 |
| Precinct -Owen 2Owen 2 | 265 | 370 | 12 | 647 | 41.0% | 57.2% | R+16.2 |
| Precinct -Rockford 27Rockford 27 | 265 | 369 | 9 | 643 | 41.2% | 57.4% | R+16.2 |
| Precinct -Rockford 52Rockford 52 | 276 | 340 | 24 | 640 | 43.1% | 53.1% | R+10.0 |
| Precinct -10011001 | 368 | 249 | 22 | 639 | 57.6% | 39.0% | D+18.6 |
| Precinct -Burritt 1Burritt 1 | 191 | 430 | 18 | 639 | 29.9% | 67.3% | R+37.4 |
| Precinct -03070307 | 433 | 176 | 27 | 636 | 68.1% | 27.7% | D+40.4 |
| Precinct -Rockford 4Rockford 4 | 342 | 280 | 14 | 636 | 53.8% | 44.0% | D+9.7 |
| Precinct -Rockford 15Rockford 15 | 359 | 254 | 21 | 634 | 56.6% | 40.1% | D+16.6 |
| Precinct -04080408 | 330 | 286 | 17 | 633 | 52.1% | 45.2% | D+7.0 |
| Precinct -Durand 2Durand 2 | 180 | 423 | 30 | 633 | 28.4% | 66.8% | R+38.4 |
| Precinct -09020902 | 379 | 231 | 20 | 630 | 60.2% | 36.7% | D+23.5 |
| Precinct -14061406 | 341 | 263 | 20 | 624 | 54.6% | 42.1% | D+12.5 |
| Precinct -08040804 | 350 | 252 | 20 | 622 | 56.3% | 40.5% | D+15.8 |
| Precinct -Harlem 13Harlem 13 | 288 | 319 | 15 | 622 | 46.3% | 51.3% | R+5.0 |
| Precinct -08050805 | 365 | 239 | 15 | 619 | 59.0% | 38.6% | D+20.4 |
| Precinct -12021202 | 399 | 188 | 30 | 617 | 64.7% | 30.5% | D+34.2 |
| Precinct -08060806 | 354 | 247 | 15 | 616 | 57.5% | 40.1% | D+17.4 |
| Precinct -10031003 | 356 | 243 | 15 | 614 | 58.0% | 39.6% | D+18.4 |
| Precinct -Roscoe 14Roscoe 14 | 235 | 350 | 19 | 604 | 38.9% | 57.9% | R+19.0 |
| Precinct -Shirland 1Shirland 1 | 195 | 390 | 19 | 604 | 32.3% | 64.6% | R+32.3 |
| Precinct -09010901 | 381 | 200 | 21 | 602 | 63.3% | 33.2% | D+30.1 |
| Precinct -09050905 | 397 | 185 | 18 | 600 | 66.2% | 30.8% | D+35.3 |
| Precinct -14041404 | 349 | 224 | 19 | 592 | 59.0% | 37.8% | D+21.1 |
| Precinct -12041204 | 357 | 219 | 12 | 588 | 60.7% | 37.2% | D+23.5 |
| Precinct -Cherry Valley 9Cherry Valley 9 | 223 | 335 | 25 | 583 | 38.3% | 57.5% | R+19.2 |
| Precinct -10061006 | 311 | 256 | 14 | 581 | 53.5% | 44.1% | D+9.5 |
| Precinct -05040504 | 427 | 132 | 9 | 568 | 75.2% | 23.2% | D+51.9 |
| Precinct -Rockton 9Rockton 9 | 251 | 303 | 14 | 568 | 44.2% | 53.3% | R+9.2 |
| Precinct -Rockford 1Rockford 1 | 242 | 307 | 18 | 567 | 42.7% | 54.1% | R+11.5 |
| Precinct -10021002 | 323 | 231 | 12 | 566 | 57.1% | 40.8% | D+16.3 |
| Precinct -02010201 | 338 | 210 | 17 | 565 | 59.8% | 37.2% | D+22.7 |
| Precinct -08010801 | 341 | 190 | 16 | 547 | 62.3% | 34.7% | D+27.6 |
| Precinct -10041004 | 328 | 201 | 16 | 545 | 60.2% | 36.9% | D+23.3 |
| Precinct -02020202 | 334 | 190 | 15 | 539 | 62.0% | 35.3% | D+26.7 |
| Precinct -12051205 | 326 | 191 | 19 | 536 | 60.8% | 35.6% | D+25.2 |
| Precinct -Cherry Valley 4Cherry Valley 4 | 213 | 302 | 18 | 533 | 40.0% | 56.7% | R+16.7 |
| Precinct -06040604 | 238 | 274 | 11 | 523 | 45.5% | 52.4% | R+6.9 |
| Precinct -08030803 | 307 | 197 | 15 | 519 | 59.2% | 38.0% | D+21.2 |
| Precinct -05030503 | 372 | 137 | 7 | 516 | 72.1% | 26.6% | D+45.5 |
| Precinct -12031203 | 315 | 171 | 20 | 506 | 62.3% | 33.8% | D+28.5 |
| Precinct -Seward 1Seward 1 | 119 | 367 | 17 | 503 | 23.7% | 73.0% | R+49.3 |
| Precinct -03050305 | 379 | 100 | 23 | 502 | 75.5% | 19.9% | D+55.6 |
| Precinct -06020602 | 215 | 271 | 15 | 501 | 42.9% | 54.1% | R+11.2 |
| Precinct -Cherry Valley 2Cherry Valley 2 | 194 | 278 | 23 | 495 | 39.2% | 56.2% | R+17.0 |
| Precinct -Rockford 12Rockford 12 | 254 | 220 | 16 | 490 | 51.8% | 44.9% | D+6.9 |
| Precinct -08020802 | 289 | 179 | 11 | 479 | 60.3% | 37.4% | D+23.0 |
| Precinct -03030303 | 304 | 142 | 10 | 456 | 66.7% | 31.1% | D+35.5 |
| Precinct -07030703 | 314 | 132 | 6 | 452 | 69.5% | 29.2% | D+40.3 |
| Precinct -11041104 | 258 | 181 | 13 | 452 | 57.1% | 40.0% | D+17.0 |
| Precinct -05010501 | 383 | 56 | 3 | 442 | 86.7% | 12.7% | D+74.0 |
| Precinct -07010701 | 306 | 113 | 5 | 424 | 72.2% | 26.7% | D+45.5 |
| Precinct -09030903 | 278 | 129 | 9 | 416 | 66.8% | 31.0% | D+35.8 |
| Precinct -06050605 | 194 | 213 | 7 | 414 | 46.9% | 51.4% | R+4.6 |
| Precinct -07040704 | 279 | 130 | 5 | 414 | 67.4% | 31.4% | D+36.0 |
| Precinct -11011101 | 257 | 141 | 14 | 412 | 62.4% | 34.2% | D+28.2 |
| Precinct -13011301 | 360 | 44 | 8 | 412 | 87.4% | 10.7% | D+76.7 |
| Precinct -13051305 | 329 | 69 | 9 | 407 | 80.8% | 17.0% | D+63.9 |
| Precinct -Owen 3Owen 3 | 148 | 240 | 18 | 406 | 36.5% | 59.1% | R+22.7 |
| Precinct -05020502 | 296 | 97 | 12 | 405 | 73.1% | 24.0% | D+49.1 |
| Precinct -11021102 | 265 | 128 | 12 | 405 | 65.4% | 31.6% | D+33.8 |
| Precinct -07060706 | 306 | 89 | 3 | 398 | 76.9% | 22.4% | D+54.5 |
| Precinct -Harrison 1Harrison 1 | 131 | 244 | 11 | 386 | 33.9% | 63.2% | R+29.3 |
| Precinct -13021302 | 302 | 75 | 6 | 383 | 78.9% | 19.6% | D+59.3 |
| Precinct -07050705 | 317 | 51 | 6 | 374 | 84.8% | 13.6% | D+71.1 |
| Precinct -07020702 | 249 | 105 | 6 | 360 | 69.2% | 29.2% | D+40.0 |
| Precinct -11031103 | 190 | 110 | 9 | 309 | 61.5% | 35.6% | D+25.9 |
| Precinct -13041304 | 232 | 61 | 6 | 299 | 77.6% | 20.4% | D+57.2 |
| Precinct -05050505 | 203 | 61 | 4 | 268 | 75.7% | 22.8% | D+53.0 |
| Precinct -13031303 | 163 | 33 | 3 | 199 | 81.9% | 16.6% | D+65.3 |
| BURRITT 1 Voting District17_17201BU01 | 0 | 0 | 0 | 0 | — | — | No votes |
| CHERRY VALLEY 1 Voting District17_17201CV01 | 0 | 0 | 0 | 0 | — | — | No votes |
| CHERRY VALLEY 10 Voting District17_17201CV10 | 0 | 0 | 0 | 0 | — | — | No votes |
| CHERRY VALLEY 11 Voting District17_17201CV11 | 0 | 0 | 0 | 0 | — | — | No votes |
| CHERRY VALLEY 12 Voting District17_17201CV12 | 0 | 0 | 0 | 0 | — | — | No votes |
| CHERRY VALLEY 2 Voting District17_17201CV02 | 0 | 0 | 0 | 0 | — | — | No votes |
| CHERRY VALLEY 3 Voting District17_17201CV03 | 0 | 0 | 0 | 0 | — | — | No votes |
| CHERRY VALLEY 4 Voting District17_17201CV04 | 0 | 0 | 0 | 0 | — | — | No votes |
| CHERRY VALLEY 5 Voting District17_17201CV05 | 0 | 0 | 0 | 0 | — | — | No votes |
| CHERRY VALLEY 6 Voting District17_17201CV06 | 0 | 0 | 0 | 0 | — | — | No votes |
| CHERRY VALLEY 7 Voting District17_17201CV07 | 0 | 0 | 0 | 0 | — | — | No votes |
| CHERRY VALLEY 8 Voting District17_17201CV08 | 0 | 0 | 0 | 0 | — | — | No votes |
| CHERRY VALLEY 9 Voting District17_17201CV09 | 0 | 0 | 0 | 0 | — | — | No votes |
| DURAND 1 Voting District17_17201DU01 | 0 | 0 | 0 | 0 | — | — | No votes |
| DURAND 2 Voting District17_17201DU02 | 0 | 0 | 0 | 0 | — | — | No votes |
| HARLEM 1 Voting District17_17201HR01 | 0 | 0 | 0 | 0 | — | — | No votes |
| HARLEM 10 Voting District17_17201HR10 | 0 | 0 | 0 | 0 | — | — | No votes |
| HARLEM 11 Voting District17_17201HR11 | 0 | 0 | 0 | 0 | — | — | No votes |
| HARLEM 12 Voting District17_17201HR12 | 0 | 0 | 0 | 0 | — | — | No votes |
| HARLEM 13 Voting District17_17201HR13 | 0 | 0 | 0 | 0 | — | — | No votes |
| HARLEM 14 Voting District17_17201HR14 | 0 | 0 | 0 | 0 | — | — | No votes |
| HARLEM 16 Voting District17_17201HR16 | 0 | 0 | 0 | 0 | — | — | No votes |
| HARLEM 19 Voting District17_17201HR19 | 0 | 0 | 0 | 0 | — | — | No votes |
| HARLEM 2 Voting District17_17201HR02 | 0 | 0 | 0 | 0 | — | — | No votes |
| HARLEM 20 Voting District17_17201HR20 | 0 | 0 | 0 | 0 | — | — | No votes |
| HARLEM 21 Voting District17_17201HR21 | 0 | 0 | 0 | 0 | — | — | No votes |
| HARLEM 22 Voting District17_17201HR22 | 0 | 0 | 0 | 0 | — | — | No votes |
| HARLEM 23 Voting District17_17201HR23 | 0 | 0 | 0 | 0 | — | — | No votes |
| HARLEM 24 Voting District17_17201HR24 | 0 | 0 | 0 | 0 | — | — | No votes |
| HARLEM 25 Voting District17_17201HR25 | 0 | 0 | 0 | 0 | — | — | No votes |
| HARLEM 26 Voting District17_17201HR26 | 0 | 0 | 0 | 0 | — | — | No votes |
| HARLEM 27 Voting District17_17201HR27 | 0 | 0 | 0 | 0 | — | — | No votes |
| HARLEM 28 Voting District17_17201HR28 | 0 | 0 | 0 | 0 | — | — | No votes |
| HARLEM 29 Voting District17_17201HR29 | 0 | 0 | 0 | 0 | — | — | No votes |
| HARLEM 3 Voting District17_17201HR03 | 0 | 0 | 0 | 0 | — | — | No votes |
| HARLEM 30 Voting District17_17201HR30 | 0 | 0 | 0 | 0 | — | — | No votes |
| HARLEM 4 Voting District17_17201HR04 | 0 | 0 | 0 | 0 | — | — | No votes |
| HARLEM 5 Voting District17_17201HR05 | 0 | 0 | 0 | 0 | — | — | No votes |
| HARLEM 6 Voting District17_17201HR06 | 0 | 0 | 0 | 0 | — | — | No votes |
| HARLEM 7 Voting District17_17201HR07 | 0 | 0 | 0 | 0 | — | — | No votes |
| HARLEM 8 Voting District17_17201HR08 | 0 | 0 | 0 | 0 | — | — | No votes |
| HARLEM 9 Voting District17_17201HR09 | 0 | 0 | 0 | 0 | — | — | No votes |
| HARRISON 1 Voting District17_17201HA01 | 0 | 0 | 0 | 0 | — | — | No votes |
| LAONA 1 Voting District17_17201LA01 | 0 | 0 | 0 | 0 | — | — | No votes |
| OWEN 2 Voting District17_17201OW02 | 0 | 0 | 0 | 0 | — | — | No votes |
| OWEN 3 Voting District17_17201OW03 | 0 | 0 | 0 | 0 | — | — | No votes |
| OWEN 4 Voting District17_17201OW04 | 0 | 0 | 0 | 0 | — | — | No votes |
| PECATONICA 2 Voting District17_17201PE02 | 0 | 0 | 0 | 0 | — | — | No votes |
| PECATONICA 3 Voting District17_17201PE03 | 0 | 0 | 0 | 0 | — | — | No votes |
| PECATONICA 4 Voting District17_17201PE04 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD 1 Voting District17_17201RT01 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD 12 Voting District17_17201RT12 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD 13 Voting District17_17201RT13 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD 14 Voting District17_17201RT14 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD 15 Voting District17_17201RT15 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD 2 Voting District17_17201RT02 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD 20 Voting District17_17201RT20 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD 22 Voting District17_17201RT22 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD 25 Voting District17_17201RT25 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD 26 Voting District17_17201RT26 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD 27 Voting District17_17201RT27 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD 28 Voting District17_17201RT28 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD 3 Voting District17_17201RT03 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD 30 Voting District17_17201RT30 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD 31 Voting District17_17201RT31 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD 32 Voting District17_17201RT32 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD 33 Voting District17_17201RT33 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD 34 Voting District17_17201RT34 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD 35 Voting District17_17201RT35 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD 36 Voting District17_17201RT36 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD 37 Voting District17_17201RT37 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD 4 Voting District17_17201RT04 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD 5 Voting District17_17201RT05 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD 51 Voting District17_17201RT51 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD 52 Voting District17_17201RT52 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD 54 Voting District17_17201RT54 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD 55 Voting District17_17201RT55 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD 56 Voting District17_17201RT56 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD 57 Voting District17_17201RT57 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD 7 Voting District17_17201RT07 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD 8 Voting District17_17201RT08 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD 9 Voting District17_17201RT09 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 01 PCT 117_17201R0101 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 01 PCT 217_17201R0102 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 01 PCT 317_17201R0103 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 01 PCT 417_17201R0104 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 01 PCT 517_17201R0105 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 01 PCT 617_17201R0106 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 01 PCT 717_17201R0107 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 01 PCT 817_17201R0108 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 01 PCT 917_17201R0109 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 02 PCT 117_17201R0201 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 02 PCT 217_17201R0202 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 02 PCT 317_17201R0203 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 02 PCT 417_17201R0204 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 02 PCT 517_17201R0205 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 02 PCT 617_17201R0206 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 02 PCT 717_17201R0207 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 03 PCT 117_17201R0301 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 03 PCT 217_17201R0302 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 03 PCT 317_17201R0303 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 03 PCT 417_17201R0304 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 03 PCT 517_17201R0305 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 03 PCT 617_17201R0306 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 03 PCT 717_17201R0307 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 04 PCT 117_17201R0401 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 04 PCT 217_17201R0402 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 04 PCT 317_17201R0403 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 04 PCT 417_17201R0404 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 04 PCT 517_17201R0405 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 04 PCT 617_17201R0406 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 04 PCT 717_17201R0407 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 04 PCT 817_17201R0408 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 04 PCT 917_17201R0409 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 05 PCT 117_17201R0501 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 05 PCT 217_17201R0502 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 05 PCT 317_17201R0503 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 05 PCT 417_17201R0504 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 05 PCT 517_17201R0505 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 05 PCT 617_17201R0506 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 06 PCT 117_17201R0601 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 06 PCT 217_17201R0602 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 06 PCT 317_17201R0603 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 06 PCT 417_17201R0604 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 06 PCT 517_17201R0605 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 06 PCT 617_17201R0606 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 07 PCT 117_17201R0701 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 07 PCT 217_17201R0702 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 07 PCT 317_17201R0703 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 07 PCT 417_17201R0704 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 07 PCT 517_17201R0705 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 07 PCT 617_17201R0706 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 08 PCT 117_17201R0801 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 08 PCT 217_17201R0802 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 08 PCT 317_17201R0803 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 08 PCT 417_17201R0804 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 08 PCT 517_17201R0805 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 08 PCT 617_17201R0806 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 08 PCT 717_17201R0807 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 09 PCT 117_17201R0901 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 09 PCT 217_17201R0902 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 09 PCT 317_17201R0903 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 09 PCT 417_17201R0904 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 09 PCT 517_17201R0905 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 09 PCT 617_17201R0906 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 09 PCT 717_17201R0907 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 10 PCT 117_17201R1001 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 10 PCT 1017_17201R1010 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 10 PCT 1217_17201R1012 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 10 PCT 217_17201R1002 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 10 PCT 317_17201R1003 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 10 PCT 517_17201R1005 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 10 PCT 617_17201R1006 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 10 PCT 717_17201R1007 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 10 PCT 917_17201R1009 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 11 PCT 117_17201R1101 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 11 PCT 217_17201R1102 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 11 PCT 317_17201R1103 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 11 PCT 417_17201R1104 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 11 PCT 517_17201R1105 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 12 PCT 117_17201R1201 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 12 PCT 217_17201R1202 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 12 PCT 317_17201R1203 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 12 PCT 417_17201R1204 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 12 PCT 517_17201R1205 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 12 PCT 617_17201R1206 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 12 PCT 717_17201R1207 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 12 PCT 817_17201R1208 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 13 PCT 117_17201R1301 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 13 PCT 217_17201R1302 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 13 PCT 317_17201R1303 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 13 PCT 417_17201R1304 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 13 PCT 517_17201R1305 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 14 PCT 117_17201R1401 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 14 PCT 217_17201R1402 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 14 PCT 317_17201R1403 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 14 PCT 417_17201R1404 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 14 PCT 517_17201R1405 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 14 PCT 617_17201R1406 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKFORD WD 14 PCT 717_17201R1407 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKTON 1 Voting District17_17201RK01 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKTON 10 Voting District17_17201RK10 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKTON 11 Voting District17_17201RK11 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKTON 2 Voting District17_17201RK02 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKTON 3 Voting District17_17201RK03 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKTON 4 Voting District17_17201RK04 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKTON 5 Voting District17_17201RK05 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKTON 6 Voting District17_17201RK06 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKTON 7 Voting District17_17201RK07 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKTON 8 Voting District17_17201RK08 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROCKTON 9 Voting District17_17201RK09 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROSCOE 1 Voting District17_17201RO01 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROSCOE 10 Voting District17_17201RO10 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROSCOE 2 Voting District17_17201RO02 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROSCOE 3 Voting District17_17201RO03 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROSCOE 4 Voting District17_17201RO04 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROSCOE 5 Voting District17_17201RO05 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROSCOE 6 Voting District17_17201RO06 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROSCOE 7 Voting District17_17201RO07 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROSCOE 8 Voting District17_17201RO08 | 0 | 0 | 0 | 0 | — | — | No votes |
| ROSCOE 9 Voting District17_17201RO09 | 0 | 0 | 0 | 0 | — | — | No votes |
| SEWARD 1 Voting District17_17201SE01 | 0 | 0 | 0 | 0 | — | — | No votes |
| SHIRLAND 1 Voting District17_17201SH01 | 0 | 0 | 0 | 0 | — | — | No votes |
| WINNEBAGO 1 Voting District17_17201WI01 | 0 | 0 | 0 | 0 | — | — | No votes |
| WINNEBAGO 2 Voting District17_17201WI02 | 0 | 0 | 0 | 0 | — | — | No votes |
| WINNEBAGO 3 Voting District17_17201WI03 | 0 | 0 | 0 | 0 | — | — | No votes |
| WINNEBAGO 4 Voting District17_17201WI04 | 0 | 0 | 0 | 0 | — | — | No votes |
Presidential margin, 1892–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1892 | −34.4% |
| 1896 | −52.8% |
| 1900 | −50.3% |
| 1904 | −64.0% |
| 1908 | −54.2% |
| 1912 | −2.0% |
| 1916 | −38.0% |
| 1920 | −65.9% |
| 1924 | −64.1% |
| 1928 | −61.8% |
| 1932 | −19.1% |
| 1936 | +4.1% |
| 1940 | −4.4% |
| 1944 | −5.1% |
| 1948 | −4.2% |
| 1952 | −16.1% |
| 1956 | −24.9% |
| 1960 | −10.5% |
| 1964 | +10.0% |
| 1968 | −12.1% |
| 1972 | −23.2% |
| 1976 | −10.6% |
| 1980 | −15.6% |
| 1984 | −17.9% |
| 1988 | −10.3% |
| 1992 | +5.4% |
| 1996 | +1.8% |
| 2000 | −1.7% |
| 2004 | −0.9% |
| 2008 | +12.8% |
| 2012 | +5.5% |
| 2016 | +0.1% |
| 2020 | +2.5% |
| 2024 | +0.6% |
U.S. House
Each row shows U.S. House votes counted inside this Place. “Vote lead” is the local lead here, not necessarily the winner of the full contest.
U.S. Senate
Each row shows U.S. Senate votes counted inside this Place. “Vote lead” is the local lead here, not necessarily the winner of the full contest.
U.S. Senate special elections
Each row shows U.S. Senate special votes counted inside this Place. “Vote lead” is the local lead here, not necessarily the winner of the full contest.
Governor
Each row shows Governor votes counted inside this Place. “Vote lead” is the local lead here, not necessarily the winner of the full contest.
Registered voters
Total registered voters, over time
| Year | Total registered |
|---|---|
| 2016 | 93,743 |
| 2018 | 98,585 |
| 2020 | 99,215 |
| 2022 | 114,384 |
| 2024 | 102,461 |
Who moves in and out
Net migration over time, and who arrivals are — where they came from and what those places vote
+184 net domestic migration · 2025
Net −27,304 over 2011–2025 · gain loss
Arrivals reported $51,595 in average income, against $71,164 for residents who stayed — 27% lower. (IRS SOI, 2022–23)
The places arrivals came from lean D+6.8 on average — 6.2 points more Democratic-leaning than Winnebago County, IL itself (D+0.6).
Where arrivals came from lean of each source
- Cook County, IL663D+41.6
- Boone County, IL629R+14.5
- Rock County, WI400D+7.3
- Ogle County, IL228R+29.3
- Kane County, IL214D+9.3
- McHenry County, IL182R+5.3
Where departures went households, 2022–23
- Cook County, IL511
- Boone County, IL446
- Rock County, WI424
- Ogle County, IL215
- Stephenson County, IL161
- Dane County, WI135
Migration is one input to a place’s political change, not its cause — a shift can also come from residents changing their minds, generational turnover, or turnout. These figures describe the places people moved between; they do not measure how any mover voted.
| Year | Net domestic migration |
|---|---|
| 2011 | −2,803 |
| 2012 | −2,918 |
| 2013 | −2,303 |
| 2014 | −3,354 |
| 2015 | −2,583 |
| 2016 | −2,281 |
| 2017 | −2,569 |
| 2018 | −1,861 |
| 2019 | −1,907 |
| 2021 | −1,565 |
| 2022 | −2,071 |
| 2023 | −1,200 |
| 2024 | −73 |
| 2025 | +184 |
Home to Rockford, Illinois's third-largest city, Winnebago County shifted from reliably Republican to a genuine battleground as its mid-sized industrial economy restructured and its suburban precincts trended more competitive through the 2010s and 2020s.
Across the recorded series it reached a Democratic high of 12.8 points in 2008 and a Republican high of 65.9 points in 1920. Between 2020 and 2024 the county moved 1.9 points toward the Republican candidate; the 2024 margin was 0.6 points.
A population of 283,292, a 64% non-Hispanic-white share, and a median household income of $65,837 describe the county. The county's voting pattern over the last decade is most similar to that of DeKalb County and Cook County.
The counties whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
Browse places by community — income, education, race & ethnicity, language — all community cuts →
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →
Winnebago County, Illinois. Akashic. https://akashic.app/county/17201/. Accessed May 20, 2026. License: CC BY 4.0.