Akashic
1892–2024
Akashic
Davenport-Rock Island-Moline
presidential margin
2008D+16.32012D+13.72016R+5.92020R+6.32024R+11.5
full record · 1892 → 2024
R+11.5
2024
median income$69,897U.S. $80,734 · IL $83,390
median age41.7U.S. 39.1
poverty rate12.5%U.S. 12.5%
bachelor’s+ (25+)26.0%U.S. 35.6%
non-english7.8%U.S. 22.3%
race · ethnicity · ancestry
German26.4%
Irish13.2%
English10.1%
Mexican7.4%
Puerto Rican0.5%
African American†4.5%
African0.4%
Asian Indian0.5%
Burmese0.2%
religion
other traditions
Mainline12.8%
Black Protestant1.1%
Latter-day Saints0.7%
Other Christian0.7%
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.

Davenport-Rock Island-Moline, Illinois

Akashic
Davenport-Rock Island-MolineTrumpR+11.5
—
2024 presidential margin by county for Davenport-Rock Island-Moline, ILA map of the constituent counties of Davenport-Rock Island-Moline, IL, each 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 Island County, IL · D+9.6Carroll County, IL · R+31.7Jackson County, IA · R+32.5Muscatine County, IA · R+14.9Scott County, IA · R+3.9Louisa County, IA · R+40.9Whiteside County, IL · R+14.7Bureau County, IL · R+24.3Clinton County, IA · R+18.8Des Moines County, IA · R+15.0Jo Daviess County, IL · R+16.8Henry County, IL · R+24.4Warren County, IL · R+25.1Knox County, IL · R+9.4Henry County, IA · R+35.9Mercer County, IL · R+27.1Henderson County, IL · R+38.8
How it voted
Share of the 2024 vote
Donald Trump ✓Republican54.8%203,383
Kamala HarrisDemocratic43.3%160,580
Robert F. Kennedy Jr.Independent1.9%7,095
D+60
R+60
17 counties, each filled by 2024 D-vs-R margin. Hover any county for its result.
County-level results (17 counties) — table
2024 presidential result by county for Davenport-Rock Island-Moline, IL — winner and D-vs-R margin.
CountyWinnerMargin
Bureau County, ILRepublicanR+24.3
Carroll County, ILRepublicanR+31.7
Clinton County, IARepublicanR+18.8
Des Moines County, IARepublicanR+15.0
Henderson County, ILRepublicanR+38.8
Henry County, ILRepublicanR+24.4
Henry County, IARepublicanR+35.9
Jackson County, IARepublicanR+32.5
Jo Daviess County, ILRepublicanR+16.8
Knox County, ILRepublicanR+9.4
Louisa County, IARepublicanR+40.9
Mercer County, ILRepublicanR+27.1
Muscatine County, IARepublicanR+14.9
Rock Island County, ILDemocraticD+9.6
Scott County, IARepublicanR+3.9
Warren County, ILRepublicanR+25.1
Whiteside County, ILRepublicanR+14.7
34 presidential elections
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024).
YearWonDemocraticRepublicanOtherMarginTotal
R
43.3%Harris160,580
54.8%Trump203,383
1.9%Kennedy7,095
−11.5%
371,058
R
45.7%Biden176,560
52.0%Trump201,015
2.2%Jorgensen8,626
−6.3%
386,201
R
43.1%Clinton157,942
49.0%Trump179,618
7.9%Johnson28,969
−5.9%
366,529
D
55.9%Obama209,591
42.2%Romney158,280
1.8%Johnson6,830
+13.7%
374,701
D
57.4%Obama216,135
41.1%McCain154,765
1.4%Nader5,439
+16.3%
376,339
D
52.0%Kerry196,424
47.2%Bush178,110
0.8%Badnarik2,846
+4.9%
377,380
D
52.6%Gore179,430
44.4%Bush151,564
3.0%Nader10,248
+8.2%
341,242
D
52.3%Clinton168,000
37.3%Dole119,948
10.4%Perot33,508
+14.9%
321,456
D
46.8%Clinton171,357
35.6%Bush130,532
17.6%Perot64,497
+11.1%
366,386
D
52.8%Dukakis176,741
46.5%Bush155,938
0.7%Paul2,320
+6.2%
334,999
R
45.2%Mondale166,733
54.2%Reagan199,765
0.6%Bergland2,279
−9.0%
368,777
R
37.1%Carter132,471
54.0%Reagan192,750
8.8%Anderson31,575
−16.9%
356,796
R
46.3%Carter163,353
52.2%Ford184,021
1.5%McCarthy5,379
−5.9%
352,753
R
39.1%McGovern133,974
59.9%Nixon205,118
1.0%Schmitz3,358
−20.8%
342,450
R
41.2%Humphrey137,331
51.6%Nixon172,106
7.2%Wallace24,042
−10.4%
333,479
D
58.0%Johnson190,381
41.9%Goldwater137,377
0.1%Hass215
+16.2%
327,973
R
42.9%Kennedy148,038
57.0%Nixon196,866
0.1%Byrd429
−14.1%
345,333
R
37.3%Stevenson121,592
62.5%Eisenhower203,723
0.2%Andrews738
−25.2%
326,053
R
35.7%Stevenson119,179
63.9%Eisenhower213,382
0.4%Hallinan1,254
−28.2%
333,815
R
43.2%Truman116,246
55.7%Dewey149,620
1.1%Thurmond2,956
−12.4%
268,822
R
42.6%Roosevelt124,233
56.9%Dewey165,894
0.4%Thomas1,223
−14.3%
291,350
R
44.0%Roosevelt145,041
55.5%Willkie182,994
0.4%Thomas1,403
−11.5%
329,438
D
51.0%Roosevelt155,429
46.3%Landon140,913
2.7%Lemke8,229
+4.8%
304,571
D
51.5%Roosevelt143,759
46.3%Hoover129,162
2.2%Thomas6,171
+5.2%
279,092
R
33.2%Smith87,001
66.2%Hoover173,634
0.7%Thomas1,709
−33.0%
262,344
R
15.0%Davis36,242
61.5%Coolidge148,662
23.5%La Follette56,859
−46.5%
241,763
R
19.2%Cox40,824
71.2%Harding151,574
9.6%Debs20,362
−52.1%
212,760
R
36.2%Wilson68,206
58.4%Hughes109,997
5.4%Benson10,269
−22.2%
188,472
O
33.1%Wilson41,330
20.0%Taft24,878
46.9%Roosevelt58,468
Roosevelt +13.7
124,676
R
36.4%Bryan46,697
56.5%Taft72,491
7.1%Debs9,075
−20.1%
128,263
R
27.3%Parker33,808
62.7%Roosevelt77,565
10.0%Debs12,397
−35.4%
123,770
R
37.5%Bryan49,349
58.9%McKinley77,539
3.5%Woolley4,652
−21.4%
131,540
R
38.6%Bryan49,589
59.2%McKinley76,111
2.3%Palmer2,909
−20.6%
128,609
R
46.1%Cleveland50,627
48.8%Harrison53,654
5.1%Weaver5,578
−2.8%
109,859
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: −11.5% in 2024.flipped R · 2016−11.5%DR18922024
Presidential margin over time
YearMargin (D minus R)
1892−2.8%
1896−20.6%
1900−21.4%
1904−35.4%
1908−20.1%
1912+13.2%
1916−22.2%
1920−52.1%
1924−46.5%
1928−33.0%
1932+5.2%
1936+4.8%
1940−11.5%
1944−14.3%
1948−12.4%
1952−28.2%
1956−25.2%
1960−14.1%
1964+16.2%
1968−10.4%
1972−20.8%
1976−5.9%
1980−16.9%
1984−9.0%
1988+6.2%
1992+11.1%
1996+14.9%
2000+8.2%
2004+4.9%
2008+16.3%
2012+13.7%
2016−5.9%
2020−6.3%
2024−11.5%
DemocraticRepublican
voter registration
Registered voters
By party of registration, over time
Voter registration in Davenport-Rock Island-MolineRegistered voters by party of registration, 2008–2014. Latest total 255,689 in 2014.64.9K129.7K194.6K259.4K255.7K20082014
DemocraticRepublicanUnaffiliatedOther parties

† Some years predate full county coverage; a flagged year sums only the counties reporting it.

Voter registration in Davenport-Rock Island-Moline
YearTotal registeredDemocraticRepublicanUnaffiliatedOther
2008 (partial)248,63086,61463,70998,25255
2010 (partial)251,36885,49966,12699,622121
2012 (partial)259,41186,23668,425104,544206
2014 (partial)255,68982,69067,724104,676599
Source: State election authorities

Straddling two states along the Mississippi, the Quad Cities market blends blue-collar manufacturing towns with growing suburban tracts, producing competitive margins that make it a reliable bellwether in both Iowa and Illinois contests.

Across the recorded series it reached a Democratic high of 16.3 points in 2008 and a Republican high of 52.1 points in 1920. Between 2020 and 2024 the market moved 5.2 points toward the Republican candidate; the 2024 margin was 11.5 points.

A population of 755,815, a 80% non-Hispanic-white share, and a median household income of $69,897 describe the market. The market's voting pattern over the last decade is most similar to that of Toledo and Flint-Saginaw-Bay City.

Political twins — media markets

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

Toledo
Ohio
88.1twin score
12-yr trend2008–2012 trajectoryelasticity≠ Polish ancestry
Flint-Saginaw-Bay City
Michigan
84.0twin score
12-yr trend2000–2008 trajectory≠ Polish ancestry
Cedar Rapids-Waterloo-Iowa City & Dubuque
Iowa
83.0twin score
2000–2012 trajectory≠ college share

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 →

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All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Davenport-Rock Island-Moline, Illinois. Akashic. https://akashic.app/dma/682/. Accessed May 20, 2026. License: CC BY 4.0.
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Places within Davenport-Rock Island-Moline

counties17
Bureau CountyCarroll CountyClinton CountyDes Moines CountyHenderson CountyHenry CountyHenry CountyJackson CountyJo Daviess CountyKnox CountyLouisa CountyMercer CountyMuscatine CountyRock Island CountyScott CountyWarren CountyWhiteside County

Frequently asked questions

How did Davenport-Rock Island-Moline, Illinois vote in 2024?
In 2024, Davenport-Rock Island-Moline, Illinois voted Republican by 11.5 points (R+11.5), carried by the Republican candidate. Out of 371,058 votes cast, 160,580 went Democratic and 203,383 went Republican.
When did Davenport-Rock Island-Moline, Illinois last vote Democratic?
The most recent presidential election in which Davenport-Rock Island-Moline, Illinois voted Democratic was 2012.
How many people live in Davenport-Rock Island-Moline, Illinois?
Davenport-Rock Island-Moline, Illinois has a population of 755,815 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Davenport-Rock Island-Moline, Illinois?
Median household income in Davenport-Rock Island-Moline, Illinois is $69,897 — below the national median of $80,734. The Illinois state median is $83,390.
What is the political history of Davenport-Rock Island-Moline, Illinois?
Akashic tracks 34 presidential elections in Davenport-Rock Island-Moline, Illinois from 1892 to 2024. Of those, 10 went Democratic and 23 went Republican.