akashic
1876–2024
Davenport-R.Island-Moline·Illinois

Davenport-R.Island-Moline moved 5 points toward the Republican candidate between 2020 and 2024.

A Mississippi River market where Iowa and Illinois suburbs split the vote

18762024·38 elections
IL
LatestR+12in 2024
TypologyHeartland Swingcluster typology
Population755,8152024 ACS

Davenport-R.Island-Moline, Illinois: Heartland Swing market. In 2024, voted R+12%. Republican peak: R+52 in 1920.

Key facts

2024 presidential margin
R+12MIT Election Lab
Political typology
Heartland SwingAkashic typology
Population
755,8152024 5-year
Median household income
$69,8972024 5-year
White (non-Hispanic)
82.1%2024 5-year
Black
5.4%2024 5-year
Hispanic / Latino
9.1%2024 5-year
Peak Democratic margin
D+16 in 1964MIT Election Lab
Peak Republican margin
R+52 in 1920MIT Election Lab
Davenport-R.Island-Moline
TrumpR+12
2024 presidential margin by county for Davenport-R.Island-Moline, ILA map of the constituent counties of Davenport-R.Island-Moline, IL, each outlined and filled by its 2024 presidential margin from deep red (Republican) through neutral to deep blue (Democratic).Rock Island County, IL · D+10Carroll County, IL · R+32Jackson County, IA · R+32Muscatine County, IA · R+15Louisa County, IA · R+41Bureau County, IL · R+24Des Moines County, IA · R+15Jo Daviess County, IL · R+17Henry County, IL · R+24Warren County, IL · R+25Knox County, IL · R+9Henry County, IA · R+36Mercer County, IL · R+27Henderson County, IL · R+39Scott County, IA · R+4Whiteside County, IL · R+15Clinton County, IA · R+19
How it voted
Share of the 2024 vote
Donald TrumpRepublican54.8%203,383
Kamala HarrisDemocratic43.3%160,580
OtherAll other candidates1.9%7,095
D+60
R+60
17 counties, each filled by 2024 D-vs-R margin. Hover any county for its result.
presidential history
Presidential margin, 1876–2024
Democratic minus Republican, by election
Presidential margin over timeDemocratic-minus-Republican presidential margin from 1876 to 2024. Most recent: −11.5% in 2024.flipped R · 2016−11.5%DR18762024
Presidential margin over time
YearMargin (D minus R)
1876No data
1880No data
1884No data
1888No data
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
Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024).
YearWonMarginDemocraticRepublicanTotal
R
−11.5%
160,580203,383371,058
R
−6.3%
176,560201,015386,201
R
−5.9%
157,942179,618366,529
D
+13.7%
209,591158,280374,701
D
+16.3%
216,135154,765376,339
D
+4.9%
196,424178,110377,380
D
+8.2%
179,430151,564341,242
D
+14.9%
168,000119,948321,456
D
+11.1%
171,357130,532366,386
D
+6.2%
176,741155,938334,999
R
−9.0%
166,733199,765368,777
R
−16.9%
132,471192,750356,796
R
−5.9%
163,353184,021352,753
R
−20.8%
133,974205,118342,450
R
−10.4%
137,331172,106333,479
D
+16.2%
190,381137,377327,973
R
−14.1%
148,038196,866345,333
R
−25.2%
121,592203,723326,053
R
−28.2%
119,179213,382333,815
R
−12.4%
116,246149,620268,822
R
−14.3%
124,233165,894291,350
R
−11.5%
145,041182,994329,438
D
+4.8%
155,429140,913304,571
D
+5.2%
143,759129,162279,092
R
−33.0%
87,001173,634262,344
R
−46.5%
36,242148,662241,763
R
−52.1%
40,824151,574212,760
R
−22.2%
68,206109,997188,472
O
+13.2%
41,33024,878124,676
R
−20.1%
46,69772,491128,263
R
−35.4%
33,80877,565123,770
R
−21.4%
49,34977,539131,540
R
−20.6%
49,58976,111128,609
R
−2.8%
50,62753,654109,859
No data
No data
No data
No data

Demographics

2024 ACS
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
26.4%
Irish
13.2%
English
10.1%
American
4.8%
Italian
2.4%
Polish
1.7%
Scottish
1.3%
Source · American Community Survey 5-year estimates, 2024 release. Hispanic/Latino is an ethnicity that overlaps the race categories, so these shares can total more than 100%. Ancestry is a self-reported, multiple-response item; ancestry percentages do not sum to the parent race percentage.
2024 ACS
Language at home
Population aged 5 and older
92.2%
speak English only
Spanish4.5%
Other Indo-European1.5%
Asian & Pacific Islander1.0%
Other languages0.7%
Source · ACS 5-year estimates, 2024.
2020 religion census
Religious adherents
Adherents per capita by tradition
Catholic & Orthodox
13.7%
Mainline Protestant
9.7%
Other Christian
5.8%
Methodist
4.8%
Baptist
2.1%
Pentecostal & Holiness
2.1%
Non-Christian
0.8%
Source · 2020 US Religion Census. Remaining 61.0% of residents not counted as adherents by any reporting body.

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 sixteen points in 2008 and a Republican high of fifty-two points in 1920. Between 2020 and 2024 the market moved five points toward the Republican candidate; the 2024 margin was twelve points.

A population of 755,815, a 82% non-Hispanic-white share, and a median household income of $69,897 describe the market.

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.
Davenport-R.Island-Moline, Illinois. Akashic. https://akashic.app/dma/682/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0

Frequently asked questions

How did Davenport-R.Island-Moline, Illinois vote in 2024?
In 2024, Davenport-R.Island-Moline, Illinois voted Republican by 11.5 points (R+12), carried by the Republican candidate. Out of 371,058 votes cast, 160,580 went Democratic and 203,383 went Republican.
What is Davenport-R.Island-Moline, Illinois's political typology?
Akashic places Davenport-R.Island-Moline, Illinois in the "Heartland Swing" typology. The typology is a data-driven cluster built from vote share, vote swing, race and ethnicity, income, language spoken at home, religion, and ancestry. Across 38 elections in the dataset, the market has voted Democratic 10 times, Republican 23 times, and other 1 times.
When did Davenport-R.Island-Moline, Illinois last vote Democratic?
The most recent presidential election in which Davenport-R.Island-Moline, Illinois voted Democratic was 2012.
How many people live in Davenport-R.Island-Moline, Illinois?
Davenport-R.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-R.Island-Moline, Illinois?
Median household income in Davenport-R.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-R.Island-Moline, Illinois?
Akashic tracks 38 presidential elections in Davenport-R.Island-Moline, Illinois from 1876 to 2024. Of those, 10 went Democratic and 23 went Republican. The market's typology — "Heartland Swing" — captures where that record, its demographics, and its recent swing place it among American communities.