akashic
1876–2024
Des Moines County, Iowa
Des Moines County·Iowa

Des Moines County votes the way the country votes.

A Mississippi River county where margins have shifted steadily rightward since 2012.

18762024·38 elections
Des Moines County, Iowa · Ian Poellet · Wikimedia Commons
Latest
R+15
in 2024
Archetype
Bellwether
since the recent cycles
Population
38,487
2024 ACS
Most similar
Trumbull County
OH · similarity 1.00
17 precincts · 19,054 votes cast
Trump · R+15
Margin
Turnout
Harris +50
Trump +50
Real precinct boundaries. Hover for vote totals.
YearWonMarginDemocraticRepublicanTotal
2024R
−15.0%
7,93510,79419,054
2020R
−8.5%
8,89310,59219,956
2016R
−6.8%
8,2129,52919,271
2012D
+18.4%
11,8888,13620,385
2008D
+23.0%
12,4627,72120,570
2004D
+20.3%
12,4568,22120,874
2000D
+20.5%
11,3517,38519,365
1996D
+26.8%
10,7615,77818,574
1992D
+23.3%
11,3096,37821,190
1988D
+20.3%
11,5937,65219,374
1984D
+7.7%
11,1739,55920,850
1980D
+4.0%
9,9779,15820,417
1976D
+10.9%
11,2689,02320,536
1972R
−7.0%
8,86910,21619,358
1968D
+8.6%
10,1648,45219,979
1964D
+40.8%
13,8945,83019,762
1960R
−3.9%
9,87210,67820,591
1956R
−11.9%
8,78111,15219,958
1952R
−16.7%
8,68612,18220,957
1948D
+7.0%
8,7927,62116,729
1944R
−11.3%
7,5439,48817,177
1940R
−25.0%
6,57810,98817,625
1936D
+1.6%
7,0116,76315,705
1932D
+24.3%
9,3955,59015,675
1928R
−30.5%
5,57810,54716,302
1924R
−36.3%
2,6167,99514,810
1920R
−37.2%
3,4498,28712,997
1916R
−3.7%
3,8274,1328,345
1912D
+12.8%
3,1692,1368,064
1908R
−2.1%
3,9754,1538,489
1904R
−17.5%
3,0434,4968,299
1900R
−4.8%
3,9094,3158,508
1896R
−9.4%
3,7414,5498,574
1892D
+14.6%
4,5263,3617,996
1888
No data
1884
No data
1880
No data
1876
No data
Demographics
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
American
100.0%
African American
3.8%
Multiple ancestry combinations reported; no single grouping above 1%.
American Indian, Alaska Native, Native Hawaiian, and Pacific Islander combined.
Source · American Community Survey 5-year estimates, 2024 release. Ancestry is a self-reported, multiple-response item; ancestry percentages do not sum to the parent race percentage.
Language at home
Population aged 5 and older
0.0%
speak English only
Source · ACS 5-year estimates, 2024.
Religious adherents
Adherents per capita by tradition
Catholic & Orthodox
10.0%
Mainline Protestant
8.5%
Methodist
5.9%
Other Christian
4.4%
Non-Christian
3.7%
Pentecostal & Holiness
3.0%
Baptist
0.4%
Source · 2020 US Religion Census. Remaining 64.1% of residents not counted as adherents by any reporting body.

Des Moines County anchors Iowa's southeastern corner at the confluence of the Iowa and Mississippi rivers. Once a reliably competitive bellwether, it has trended Republican in each of the last three presidential cycles, landing at R+15 in 2024.

The Democratic margin in Des Moines County has rarely exceeded forty-one points in modern history; the Republican margin has rarely exceeded thirty-seven points. 2024 delivered the county to the Republican candidate by fifteen points.

Des Moines County's demographics resemble the country more than they resemble most counties. A 86% non-Hispanic-white share, a 13% poverty rate, and a median household income of $62,928 — all within the broad national range. The county's voting pattern over the last decade is most similar to that of Trumbull County and Mower County.