† Citizen voting-age population estimated for prior cycles; 2004 predates the ACS and is extrapolated. Source: ACS 5-year, table B05003.
——
D+60R+60
20042024
Boundary by 2024 margin · Precinct returns · VEST · 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
GroupGrimesIowaUnited States
German28.0%30.5%12.5%
Irish15.2%12.8%9.4%
English13.5%10.2%9.5%
Norwegian4.2%4.1%—
American3.8%4.6%5.3%
Italian3.7%1.6%4.8%
Dutch3.0%2.7%—
Swedish2.9%1.9%—
Mexican3.6%5.0%11.3%
Salvadoran0.5%0.3%0.7%
Puerto Rican0.3%0.3%1.8%
Honduran0.2%0.2%0.3%
Guatemalan0.2%0.4%0.5%
Burmese0.8%0.3%—
Asian Indian0.8%0.5%1.4%
Vietnamese0.6%0.3%0.6%
Laotian0.5%0.2%—
Chinese0.4%0.3%1.3%
Filipino0.2%0.2%0.9%
Korean0.2%0.2%0.4%
Nepalese0.2%——
African American†3.8%2.6%9.9%
Liberian0.6%——
Sudanese0.6%0.2%—
African0.3%0.3%0.5%
Somali0.3%——
Nigerian0.2%—0.2%
Ethiopian0.2%——
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
Grimes
Iowa
United States
Median age
35.4
38.8
39.1
Age 18–24
8.7%
10.0%
9.2%
Age 65 and older
7.3%
18.1%
17.2%
Household economy
Measure
Grimes
Iowa
United States
Median household income
$120,037
$75,059
$84,427
Poverty rate
4.4%
11.1%
12.5%
Bachelor's degree or higher (25+)
51.5%
31.8%
35.6%
Languages at home
Measure
Grimes
Iowa
United States
Speaks a non-English language at home
11.1%
9.2%
22.3%
Spanish
2.3%
4.7%
13.6%
Other Indo-European
1.2%
0.6%
2.0%
Other Asian & Pacific Island
3.5%
1.0%
1.1%
Other languages
2.7%
0.6%
0.8%
Religious landscape
Measure
Grimes
Iowa
United States
Catholic
—
14.7%
18.6%
Evangelical Protestant
—
10.9%
16.5%
Unclaimed / not counted
—
55.2%
51.5%
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.
Grimes, Iowa
presidential history
Presidential margin, 2004–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
2004
−18.1%
2008
−8.0%
2012
−9.0%
2016
−10.7%
2020
−1.4%
2024
−6.8%
DemocraticRepublican
6 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. Third-party votes in 2012 are allocated from certified county totals by this place's share of each county's two-party vote — that cycle's precinct source records two-party splits. † 2004 sub-county results are estimated: the source's block-level detail for this cycle was unreliable — either county/municipality-level consolidated reporting (COVID-era) or a precinct-to-block allocation that misplaced votes — so the figures are allocated from the constituent county totals in proportion to the place and scaled to certified totals.
Year
Won
Democratic
Republican
Other
Margin
Swing
vs U.S.
Total
R
45.7%Harris4,197
52.5%Trump4,821
1.8%
R+6.8
R+5.4
R+5.3
9,181
R
48.1%Biden4,096
49.5%Trump4,214
2.5%
R+1.4
D+9.3
R+5.8
8,519
R
40.1%Clinton2,596
50.8%Trump3,288
9.1%
R+10.7
R+1.7
R+12.8
6,476
R
44.6%Obama2,336
53.5%Romney2,805
1.9%
R+9.0
R+1.0
R+12.8
5,240
R
45.2%Obama1,720
53.1%McCain2,024
1.7%
R+8.0
D+10.1
R+15.3
3,809
R
40.8%Kerry1,495
58.9%Bush2,157
0.3%
R+18.1
—
R+15.6
3,663
Grimes has roughly doubled in population since 2010, making it one of Polk County's fastest-expanding cities. That pace of residential growth tends to churn voter rolls and soften the predictability of precinct-level results.
Across the recorded series it reached a Republican high of 18.1 points in 2004. Between 2020 and 2024 the city moved 5.4 points toward the Republican candidate; the 2024 margin was 6.8 points.
A population of 16,366, a 85% non-Hispanic-white share, and a median household income of $120,037 describe the city. The city's voting pattern over the last decade is most similar to that of Farmington and Polk City.
Akashic
Political twins — cities
The cities 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.
In 2024, Grimes, Iowa voted Republican by 6.8 points (R+6.8), carried by the Republican candidate. Out of 9,181 votes cast, 4,197 went Democratic and 4,821 went Republican.
How many people live in Grimes, Iowa?
Grimes, Iowa has a population of 16,366 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Grimes, Iowa?
Median household income in Grimes, Iowa is $120,037 — above the national median of $80,734. The Iowa state median is $75,059.
What is the political history of Grimes, Iowa?
Akashic tracks 6 presidential elections in Grimes, Iowa from 2004 to 2024. Of those, 0 went Democratic and 6 went Republican.
