Davenport-Rock Island-Moline · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1892–2024 · 34 presidential cycles
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
Lyndon B. Johnson1964
58.0%
190,381 votes · D+16.2
Runner-up · Barack Obama, 2008 · 57.4%
Republican
Warren G. Harding1920
71.2%
151,574 votes · R+52.1
Runner-up · Herbert Hoover, 1928 · 66.2%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Barack Obama2008
216,135votes
57.4% of the vote · D+16.3
Runner-up · Barack Obama, 2012 · 209,591 votes
Republican
Dwight D. Eisenhower1952
213,382votes
63.9% of the vote · R+28.2
Runner-up · Richard Nixon, 1972 · 205,118 votes
Best relative to the U.S.
This Place’s margin against the national margin in the same election — positive when it leaned toward the party more than the country did.
Democratic
Michael Dukakis1988
+13.9pts D vs U.S.
Place D+6.2 · U.S. R+7.7
Runner-up · Barack Obama, 2012 · +9.8 pts
Republican
Warren G. Harding1920
+25.9pts R vs U.S.
Place R+52.1 · U.S. R+26.2
Runner-up · Charles E. Hughes, 1916 · +25.3 pts
U.S. House elections · 3 House
Senate and governor results are in the Office selector at the top of this page.
U.S. House
On a multi-state Place, each row sums votes cast in the separate U.S. House races held inside the Place that year. It is a geographic vote total, not one contest or a seat tally.
Davenport-Rock Island-Moline · how this place’s counties split between candidates in each party’s presidential nominating contest, cycle by cycle. A primary is a contest inside one party, so it has no Democratic–Republican margin and is not part of the general-election record above.
Akashic reports votes cast, not delegates awarded. The two can disagree: Clinton led the 2008 national primary popular vote by less than half a point and did not win the nomination.
Primary returns are published at county grain and there is no roll-up above it. Each cell counts how many of this place’s counties a candidate led — a count of records, not a vote total. Who led the place as a whole is not knowable from these returns, because county rows carry a leader and a lead but no per-candidate votes.
Presidential nominating contests in Davenport-Rock Island-Moline, by party and cycle.
Party
2008
2012
2016
2020
2024
Democratic
Obama16Clinton160,804 votes · 17 of 17 countiescaucus + primary
Sanders9Clinton864,057 votes · 17 of 17 countiescaucus + primary
Biden10Buttigieg4Sanders353,452 votes · 17 of 17 countiescaucus + primary
○no contest record
Republicannot ingested
○no contest record
○no contest record
○no contest record
○no contest record
○no contest record
○no contest record — Akashic holds no result for that party and cycle here. It is not a claim that no contest was held. Telling apart a contest that was cancelled, one that went uncontested, and one simply not yet ingested needs a nominating-contest calendar, which is a separate ingest from results and does not exist yet.
Republican presidential primaries are not yet ingested — the Republican series runs from 1856 and is in scope. The row is kept so its absence is visible: a Democratic-only panel would otherwise read as though no one else held a contest.
Akashic carries 10 states for 2012 and 3 states for 2024. Cycles in which an incumbent president seeks renomination are thin by nature — few states run a contested primary — so a sparse column is politics, not a hole in the record.
County returns carry a leader and a lead over the runner-up, and nothing more. The full candidate field with vote shares is published at state grain — follow a cycle above to the state contest for it.
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.
