† 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
GroupSioux CenterIowaUnited States
Dutch41.1%2.7%—
German21.7%30.5%12.5%
American6.1%4.6%5.3%
Irish4.5%12.8%9.4%
English3.5%10.2%9.5%
Norwegian2.3%4.1%—
French1.2%—1.6%
Swedish1.2%1.9%—
Mexican9.8%5.0%11.3%
Guatemalan2.2%0.4%0.5%
Puerto Rican0.3%0.3%1.8%
Spaniard0.2%——
Spanish0.2%——
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
Sioux Center
Iowa
United States
Median age
30
38.8
39.1
Age 18–24
18.7%
10.0%
9.2%
Age 65 and older
12.7%
18.1%
17.2%
Household economy
Measure
Sioux Center
Iowa
United States
Median household income
$92,983
$75,059
$84,427
Poverty rate
2.2%
11.1%
12.5%
Bachelor's degree or higher (25+)
41.7%
31.8%
35.6%
Languages at home
Measure
Sioux Center
Iowa
United States
Speaks a non-English language at home
10.2%
9.2%
22.3%
Spanish
8.5%
4.7%
13.6%
Religious landscape
Measure
Sioux 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.
Sioux Center, Iowa
presidential history
Presidential margin, 2004–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
2004
−78.0%
2008
−68.6%
2012
−74.4%
2016
−69.4%
2020
−64.7%
2024
−66.0%
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
15.8%Harris660
81.8%Trump3,418
2.4%
R+66.0
R+1.4
R+64.6
4,177
R
16.2%Biden643
80.8%Trump3,215
3.0%
R+64.7
D+4.7
R+69.1
3,977
R
11.1%Clinton438
80.4%Trump3,179
8.5%
R+69.4
D+5.0
R+71.4
3,952
R
12.2%Obama405
86.6%Romney2,865
1.1%
R+74.4
R+5.8
R+78.2
3,308
R
15.0%Obama480
83.5%McCain2,675
1.5%
R+68.6
D+9.4
R+75.8
3,202
R
10.9%Kerry347
88.9%Bush2,832
0.2%
R+78.0
—
R+75.5
3,186
Sioux Center's political behavior reflects its heavily Reformed Protestant heritage — Dordt University anchors a community that has ranked among Iowa's most reliably conservative precincts for decades, with GOP margins routinely exceeding 80 percent.
Across the recorded series it reached a Republican high of 78.0 points in 2004. Between 2020 and 2024 the city moved 1.4 points toward the Republican candidate; the 2024 margin was 66.0 points.
A population of 8,454, a 80% non-Hispanic-white share, and a median household income of $92,983 describe the city. The city's voting pattern over the last decade is most similar to that of Orange City and Woodward.
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, Sioux Center, Iowa voted Republican by 66.0 points (R+66.0), carried by the Republican candidate. Out of 4,177 votes cast, 660 went Democratic and 3,418 went Republican.
How many people live in Sioux Center, Iowa?
Sioux Center, Iowa has a population of 8,454 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Sioux Center, Iowa?
Median household income in Sioux Center, Iowa is $92,983 — above the national median of $80,734. The Iowa state median is $75,059.
What is the political history of Sioux Center, Iowa?
Akashic tracks 6 presidential elections in Sioux Center, Iowa from 2004 to 2024. Of those, 0 went Democratic and 6 went Republican.
