Akashic
1892–2024
Akashic
Janesville-Beloit, WI
presidential margin
2008D+29.32012D+23.22016D+10.32020D+11.22024D+7.3
full record · 1892 → 2024
D+7.3
2024
median income$75,673U.S. $80,734 · WI $77,485
median age40.3U.S. 39.1 · WI 40.5
poverty rate9.3%U.S. 12.5% · WI 10.6%
bachelor’s+ (25+)25.8%U.S. 35.6% · WI 33.5%
non-english8.8%U.S. 22.3% · WI 9.1%
race · ethnicity · ancestry
German31.6%
Irish13.0%
English9.9%
Mexican8.3%
Puerto Rican0.5%
Dominican0.3%
African American†4.2%
African0.3%
Chinese0.2%
Cambodian0.2%
religion
other traditions
Mainline10.5%
Muslim1.4%
Other Christian0.9%
Latter-day Saints0.6%
American Community Survey 2024 5-year (income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024 · 2020 U.S. Religion Census (ASARB) — congregational adherents, unaffiliated is the unclaimed remainder.

Janesville-Beloit, WI, Wisconsin

Akashic
Janesville-Beloit, WIHarrisD+7.3
—
2024 presidential margin by county for Janesville-Beloit, WI, WIA map of the single county of Janesville-Beloit, WI, WI, outlined and filled by its 2024 presidential margin from deep red (Republican) through neutral to deep blue (Democratic), seated within the faint outlines of the surrounding states.Rock County, WI · D+7.3
How it voted
Share of the 2024 vote
Kamala Harris ✓Democratic52.8%46,642
Donald TrumpRepublican45.5%40,218
Robert F. Kennedy Jr.No1.6%1,450
D+60
R+60
A single county, filled by its 2024 D-vs-R margin. Hover it for the full result.
County-level results (1 county) — table
2024 presidential result by county for Janesville-Beloit, WI, WI — winner and D-vs-R margin.
CountyWinnerMargin
Rock County, WIDemocraticD+7.3
34 presidential elections
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024).
YearWonDemocraticRepublicanOtherMarginTotal
D
52.8%Harris46,642
45.5%Trump40,218
1.6%Kennedy1,450
+7.3%
88,310
D
54.7%Biden46,658
43.5%Trump37,138
1.8%Jorgensen1,564
+11.2%
85,360
D
51.7%Clinton39,339
41.4%Trump31,493
6.9%Johnson5,242
+10.3%
76,074
D
61.0%Obama49,219
37.8%Romney30,517
1.2%Scattering954
+23.2%
80,690
D
63.8%Obama50,529
34.6%McCain27,364
1.6%Nader1,276
+29.3%
79,169
D
57.9%Kerry46,598
41.2%Bush33,151
0.9%Nader730
+16.7%
80,479
D
57.5%Gore40,472
39.0%Bush27,467
3.5%Nader2,465
+18.5%
70,404
D
53.8%Clinton32,450
33.3%Dole20,096
12.9%Perot7,774
+20.5%
60,320
D
45.1%Clinton31,154
31.8%Bush21,942
23.1%Perot15,929
+13.3%
69,025
D
50.8%Dukakis29,576
48.4%Bush28,178
0.7%Scattering434
+2.4%
58,188
R
44.5%Mondale26,433
54.8%Reagan32,491
0.7%Bergland410
−10.2%
59,334
R
40.4%Carter24,740
50.6%Reagan30,960
9.0%Anderson5,482
−10.2%
61,182
R
48.6%Carter28,048
49.0%Ford28,325
2.4%McCarthy1,389
−0.5%
57,762
R
40.2%McGovern21,033
58.0%Nixon30,361
1.8%Schmitz925
−17.8%
52,319
R
41.6%Humphrey20,567
51.0%Nixon25,229
7.5%Wallace3,697
−9.4%
49,493
D
58.0%Johnson28,257
41.8%Goldwater20,372
0.1%Hass55
+16.2%
48,684
R
39.2%Kennedy19,194
60.6%Nixon29,675
0.2%Byrd76
−21.4%
48,945
R
32.2%Stevenson13,834
67.4%Eisenhower28,980
0.4%Andrews173
−35.2%
42,987
R
35.3%Stevenson15,183
64.6%Eisenhower27,837
0.1%Hallinan45
−29.4%
43,065
R
47.9%Truman16,150
50.7%Dewey17,068
1.4%Thurmond474
−2.7%
33,692
R
47.4%Roosevelt16,766
52.2%Dewey18,477
0.4%Thomas133
−4.8%
35,376
R
46.3%Roosevelt17,543
53.1%Willkie20,141
0.6%Thomas214
−6.9%
37,898
D
53.3%Roosevelt17,991
43.6%Landon14,693
3.1%Lemke1,045
+9.8%
33,729
R
42.0%Roosevelt12,612
56.1%Hoover16,825
1.9%Thomas571
−14.0%
30,008
R
28.7%Smith8,726
70.8%Hoover21,497
0.5%Thomas161
−42.0%
30,384
R
6.0%Davis1,453
60.9%Coolidge14,815
33.1%La Follette8,052
−54.9%
24,320
R
12.7%Cox2,447
83.5%Harding16,152
3.8%Debs738
−70.9%
19,337
R
35.0%Wilson4,015
61.1%Hughes7,011
3.9%Benson451
−26.1%
11,477
R
30.6%Wilson3,032
43.2%Taft4,276
26.1%Roosevelt2,587
−12.6%
9,895
R
27.5%Bryan3,227
66.8%Taft7,839
5.7%Debs668
−39.3%
11,734
R
21.1%Parker2,348
71.6%Roosevelt7,972
7.3%Debs807
−50.5%
11,127
R
26.2%Bryan3,094
70.0%McKinley8,249
3.8%Woolley447
−43.7%
11,790
R
29.8%Bryan3,655
67.5%McKinley8,282
2.8%Palmer340
−37.7%
12,277
R
38.6%Cleveland4,231
55.2%Harrison6,052
6.1%Weaver673
−16.6%
10,956
presidential history
Presidential margin, 1892–2024
Democratic minus Republican, by election
Presidential margin over timeDemocratic-minus-Republican presidential margin from 1892 to 2024. Most recent: +7.3% in 2024.flipped D · 1988+7.3%DR18922024
Presidential margin over time
YearMargin (D minus R)
1892−16.6%
1896−37.7%
1900−43.7%
1904−50.5%
1908−39.3%
1912−12.6%
1916−26.1%
1920−70.9%
1924−54.9%
1928−42.0%
1932−14.0%
1936+9.8%
1940−6.9%
1944−4.8%
1948−2.7%
1952−29.4%
1956−35.2%
1960−21.4%
1964+16.2%
1968−9.4%
1972−17.8%
1976−0.5%
1980−10.2%
1984−10.2%
1988+2.4%
1992+13.3%
1996+20.5%
2000+18.5%
2004+16.7%
2008+29.3%
2012+23.2%
2016+10.3%
2020+11.2%
2024+7.3%
DemocraticRepublican

Janesville's GM plant closure in 2008 marked a turning point for Rock County, which had voted reliably Democratic for decades; the metro now swings between parties in statewide races by single-digit margins.

Across the recorded series it reached a Democratic high of 29.3 points in 2008 and a Republican high of 70.9 points in 1920. Between 2020 and 2024 the metro moved 3.9 points toward the Republican candidate; the 2024 margin was 7.3 points.

A population of 164,350, a 80% non-Hispanic-white share, and a median household income of $75,673 describe the metro. The metro's voting pattern over the last decade is most similar to that of Cedar Rapids, IA and Duluth, MN-WI.

Political twins — metros

The metros whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.

Cedar Rapids, IA
91.1twin score
2004–2024 trajectory≠ Norwegian ancestry
Duluth, MN-WI
90.7twin score
2000–2012 trajectory≠ elasticity
Davenport-Moline-Rock Island, IA-IL
90.6twin score
2000–2012 trajectory≠ Norwegian ancestry

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.

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 →

Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Janesville-Beloit, WI, Wisconsin. Akashic. https://akashic.app/cbsa/27500/. Accessed May 20, 2026. License: CC BY 4.0.
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Places within Janesville-Beloit, WI

counties1
Rock County

Frequently asked questions

How did Janesville-Beloit, WI, Wisconsin vote in 2024?
In 2024, Janesville-Beloit, WI, Wisconsin voted Democratic by 7.3 points (D+7.3), carried by the Democratic candidate. Out of 88,310 votes cast, 46,642 went Democratic and 40,218 went Republican.
When did Janesville-Beloit, WI, Wisconsin last vote Republican?
The most recent presidential election in which Janesville-Beloit, WI, Wisconsin voted Republican was 1984.
How many people live in Janesville-Beloit, WI, Wisconsin?
Janesville-Beloit, WI, Wisconsin has a population of 164,350 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Janesville-Beloit, WI, Wisconsin?
Median household income in Janesville-Beloit, WI, Wisconsin is $75,673 — below the national median of $80,734. The Wisconsin state median is $77,485.
What is the political history of Janesville-Beloit, WI, Wisconsin?
Akashic tracks 34 presidential elections in Janesville-Beloit, WI, Wisconsin from 1892 to 2024. Of those, 12 went Democratic and 22 went Republican.