† 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
GroupGrundy CenterIowaUnited States
German44.5%30.5%12.5%
Irish9.8%12.8%9.4%
English8.6%10.2%9.5%
American8.1%4.6%5.3%
Norwegian4.0%4.1%—
Dutch2.7%2.7%—
Czech1.9%——
Scottish1.7%—1.3%
Mexican1.5%5.0%11.3%
Chilean0.5%——
Puerto Rican0.3%0.3%1.8%
Oglala Sioux0.7%——
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
Grundy Center
Iowa
United States
Median age
41.8
38.8
39.1
Age 18–24
8.5%
10.0%
9.2%
Age 65 and older
22.5%
18.1%
17.2%
Household economy
Measure
Grundy Center
Iowa
United States
Median household income
$80,357
$75,059
$84,427
Poverty rate
11.1%
11.1%
12.5%
Bachelor's degree or higher (25+)
24.5%
31.8%
35.6%
Languages at home
Measure
Grundy Center
Iowa
United States
Speaks a non-English language at home
1.6%
9.2%
22.3%
Religious landscape
Measure
Grundy Center
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.
Grundy Center, Iowa
presidential history
Presidential margin, 2004–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
2004
−29.8%
2008
−13.7%
2012
−19.3%
2016
−30.1%
2020
−26.9%
2024
−32.7%
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
32.9%Harris523
65.6%Trump1,042
1.4%
R+32.7
R+5.8
R+31.2
1,588
R
35.2%Biden552
62.1%Trump973
2.6%
R+26.9
D+3.2
R+31.3
1,566
R
30.9%Clinton455
61.0%Trump898
8.1%
R+30.1
R+10.8
R+32.2
1,473
R
39.6%Obama595
58.8%Romney885
1.6%
R+19.3
R+5.6
R+23.1
1,504
R
42.1%Obama630
55.9%McCain835
2.0%
R+13.7
D+16.1
R+21.0
1,495
R
35.0%Kerry515
64.9%Bush954
0.1%
R+29.8
—
R+27.4
1,471
Grundy Center sits at the heart of Grundy County, which has posted some of Iowa's widest Republican presidential margins over the past two decades. Its small, stable population is rooted in agriculture and reflects the broader consolidation of rural Iowa's political identity.
Across the recorded series it reached a Republican high of 32.7 points in 2024. Between 2020 and 2024 the city moved 5.8 points toward the Republican candidate; the 2024 margin was 32.7 points.
A population of 2,809, a 95% non-Hispanic-white share, and a median household income of $80,357 describe the city.
In 2024, Grundy Center, Iowa voted Republican by 32.7 points (R+32.7), carried by the Republican candidate. Out of 1,588 votes cast, 523 went Democratic and 1,042 went Republican.
How many people live in Grundy Center, Iowa?
Grundy Center, Iowa has a population of 2,809 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Grundy Center, Iowa?
Median household income in Grundy Center, Iowa is $80,357 — below the national median of $80,734. The Iowa state median is $75,059.
What is the political history of Grundy Center, Iowa?
Akashic tracks 6 presidential elections in Grundy Center, Iowa from 2004 to 2024. Of those, 0 went Democratic and 6 went Republican.
