† Citizen voting-age population estimated for prior cycles; 2004 predates the ACS and is extrapolated. Source: ACS 5-year, table B05003.
——
D+60R+60
17 counties by 2024 margin · County returns · MIT Election Lab
People and households
Who lives here
Exact values for this place, its state, and the United States.
Race · ethnicity · ancestry
Communities and origins
GroupDavenport-Rock Island-MolineUnited States
German26.4%12.5%
Irish13.2%9.4%
English10.1%9.5%
American4.8%5.3%
Swedish3.7%—
Italian2.3%4.8%
Polish1.7%2.2%
Dutch1.0%—
Mexican7.4%11.3%
Puerto Rican0.5%1.8%
African American†4.5%9.9%
African0.4%0.5%
Asian Indian0.5%1.4%
Burmese0.2%—
Hispanic or Latino counts residents of any race; the race groups count only their non-Hispanic residents, so the groups are mutually exclusive and sum to 100%. Expand a row to see ancestries reported within that group.
Age and life stage
Measure
Davenport-Rock Island-Moline
United States
Median age
41.7
39.1
Age 18–24
8.2%
9.2%
Age 65 and older
20.6%
17.2%
Household economy
Measure
Davenport-Rock Island-Moline
United States
Median household income
$69,897
$84,427
Poverty rate
12.5%
12.5%
Bachelor's degree or higher (25+)
26.0%
35.6%
Languages at home
Measure
Davenport-Rock Island-Moline
United States
Speaks a non-English language at home
7.8%
22.3%
Spanish
4.5%
13.6%
Religious landscape
Measure
Davenport-Rock Island-Moline
United States
Catholic
13.6%
18.6%
Evangelical Protestant
9.3%
16.5%
Unclaimed / not counted
61.0%
51.5%
Mainline Protestant
12.8%
5.2%
American Community Survey 2024 5-year (CVAP, income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024 · 2020 U.S. Religion Census (ASARB) — congregational adherents; unclaimed is the residual not counted by congregations.
Davenport-Rock Island-Moline, Illinois
presidential history
Presidential margin, 1892–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (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
34 presidential elections
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024). Swing · margin change from the prior cycle. vs U.S. · margin relative to the national result that year.
Year
Won
Democratic
Republican
Other
Margin
Swing
vs U.S.
Total
R
43.3%Harris160,580
54.8%Trump203,383
1.9%
R+11.5
R+5.2
R+10.1
371,058
R
45.7%Biden176,560
52.0%Trump201,015
2.2%
R+6.3
R+0.4
R+10.8
386,201
R
43.1%Clinton157,942
49.0%Trump179,618
7.9%
R+5.9
R+19.6
R+8.0
366,529
D
55.9%Obama209,591
42.2%Romney158,280
1.8%
D+13.7
R+2.6
D+9.8
374,701
D
57.4%Obama216,135
41.1%McCain154,765
1.4%
D+16.3
D+11.5
D+9.0
376,339
D
52.0%Kerry196,424
47.2%Bush178,110
0.8%
D+4.9
R+3.3
D+7.3
377,380
D
52.6%Gore179,430
44.4%Bush151,564
3.0%
D+8.2
R+6.8
D+7.6
341,242
D
52.3%Clinton168,000
37.3%Dole119,948
10.4%
D+14.9
D+3.8
D+6.4
321,456
D
46.8%Clinton171,357
35.6%Bush130,532
17.6%
D+11.1
D+4.9
D+5.6
366,386
D
52.8%Dukakis176,741
46.5%Bush155,938
0.7%
D+6.2
D+15.2
D+13.9
334,999
R
45.2%Mondale166,733
54.2%Reagan199,765
0.6%
R+9.0
D+7.9
D+9.3
368,777
R
37.1%Carter132,471
54.0%Reagan192,750
8.8%
R+16.9
R+11.0
R+7.2
356,796
R
46.3%Carter163,353
52.2%Ford184,021
1.5%
R+5.9
D+14.9
R+7.9
352,753
R
39.1%McGovern133,974
59.9%Nixon205,118
1.0%
R+20.8
R+10.3
D+2.4
342,450
R
41.2%Humphrey137,331
51.6%Nixon172,106
7.2%
R+10.4
R+26.6
R+9.7
333,479
D
58.0%Johnson190,381
41.9%Goldwater137,377
0.1%
D+16.2
D+30.3
R+6.4
327,973
R
42.9%Kennedy148,038
57.0%Nixon196,866
0.1%
R+14.1
D+11.1
R+14.3
345,333
R
37.3%Stevenson121,592
62.5%Eisenhower203,723
0.2%
R+25.2
D+3.0
R+9.8
326,053
R
35.7%Stevenson119,179
63.9%Eisenhower213,382
0.4%
R+28.2
R+15.8
R+17.5
333,815
R
43.2%Truman116,246
55.7%Dewey149,620
1.1%
R+12.4
D+1.9
R+16.9
268,822
R
42.6%Roosevelt124,233
56.9%Dewey165,894
0.4%
R+14.3
R+2.8
R+21.8
291,350
R
44.0%Roosevelt145,041
55.5%Willkie182,994
0.4%
R+11.5
R+16.3
R+21.5
329,438
D
51.0%Roosevelt155,429
46.3%Landon140,913
2.7%
D+4.8
R+0.5
R+19.5
304,571
D
51.5%Roosevelt143,759
46.3%Hoover129,162
2.2%
D+5.2
D+38.3
R+12.6
279,092
R
33.2%Smith87,001
66.2%Hoover173,634
0.7%
R+33.0
D+13.5
R+15.6
262,344
R
15.0%Davis36,242
61.5%Coolidge148,662
23.5%
R+46.5
D+5.6
R+21.3
241,763
R
19.2%Cox40,824
71.2%Harding151,574
9.6%
R+52.1
R+29.9
R+25.9
212,760
R
36.2%Wilson68,206
58.4%Hughes109,997
5.4%
R+22.2
R+35.4
R+25.3
188,472
O
33.1%Wilson41,330
20.0%Taft24,878
46.9%
Roosevelt +13.7
D+33.3
R+6.3
124,676
R
36.4%Bryan46,697
56.5%Taft72,491
7.1%
R+20.1
D+15.2
R+10.6
128,263
R
27.3%Parker33,808
62.7%Roosevelt77,565
10.0%
R+35.4
R+13.9
R+15.7
123,770
R
37.5%Bryan49,349
58.9%McKinley77,539
3.5%
R+21.4
R+0.8
R+13.9
131,540
R
38.6%Bryan49,589
59.2%McKinley76,111
2.3%
R+20.6
R+17.9
R+14.5
128,609
R
46.1%Cleveland50,627
48.8%Harrison53,654
5.1%
R+2.8
—
R+4.4
109,859
voter registration
Registered voters
By party of registration, over time
Party registration · 2014D+5.9
vs
Presidential vote · 2024R+11.5
Davenport-Rock Island-Moline registers Democratic but votes Republican — a 17-point gap between how voters register and how they vote, the signature of ancestral registration that trails realignment.
DemocraticRepublicanUnaffiliatedOther parties
† Some years predate full county coverage; a flagged year sums only the counties reporting it.
Voter registration in Davenport-Rock Island-Moline
Year
Total registered
Democratic
Republican
Unaffiliated
Other
2008 (partial)
248,630
86,614
63,709
98,252
55
2010 (partial)
251,368
85,499
66,126
99,622
121
2012 (partial)
259,411
86,236
68,425
104,544
206
2014 (partial)
255,689
82,690
67,724
104,676
599
domestic migration
Who moves in and out
Net domestic migration over time
−757 net domestic migration · 2025
20112025
Net −46,062 over 2011–2025 · gain loss
Domestic migration in Davenport-Rock Island-Moline in Davenport-Rock Island-Moline: net domestic migration by year
Year
Net domestic migration
2011
−1,785
2012
−2,121
2013
−2,040
2014
−4,198
2015
−4,993
2016
−5,342
2017
−4,767
2018
−4,458
2019
−3,723
2021
−3,040
2022
−5,013
2023
−2,403
2024
−1,422
2025
−757
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.
Akashic
Political twins — media markets
The media markets 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.
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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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.
