Jones County, Iowa: Heartland Swing county. In 2024, voted R+26%. Republican peak: R+42 in 1920.
Key facts
- 2024 presidential margin
- R+26MIT Election Lab
- Political typology
- Heartland SwingAkashic typology
- Population
- 20,8962024 5-year
- Median household income
- $73,5312024 5-year
- White (non-Hispanic)
- 91.9%2024 5-year
- Black
- 2.5%2024 5-year
- Hispanic / Latino
- 2.6%2024 5-year
- Peak Democratic margin
- D+27 in 1964MIT Election Lab
- Peak Republican margin
- R+42 in 1920MIT Election Lab
- Most similar
- Day County, SD · similarity 0.98
2024 results by precinct
2024 precinct map of Jones CountyPrecinct-level 2024 presidential results for Jones County, with each precinct boundary colored by Democratic-vs-Republican margin.
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Margin—
Turnout—
Harris +50Trump +50
Real precinct boundaries. Hover for vote totals.
presidential history
Presidential margin, 1876–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1876 | No data |
| 1880 | No data |
| 1884 | No data |
| 1888 | No data |
| 1892 | +0.4% |
| 1896 | −17.3% |
| 1900 | −18.8% |
| 1904 | −20.9% |
| 1908 | −5.9% |
| 1912 | +12.4% |
| 1916 | −18.2% |
| 1920 | −41.7% |
| 1924 | −29.2% |
| 1928 | −26.1% |
| 1932 | +17.1% |
| 1936 | +9.7% |
| 1940 | −13.7% |
| 1944 | −11.1% |
| 1948 | −4.5% |
| 1952 | −33.9% |
| 1956 | −25.1% |
| 1960 | −17.1% |
| 1964 | +27.2% |
| 1968 | −13.1% |
| 1972 | −17.5% |
| 1976 | −2.5% |
| 1980 | −11.1% |
| 1984 | −12.3% |
| 1988 | +14.0% |
| 1992 | +4.9% |
| 1996 | +18.5% |
| 2000 | +5.3% |
| 2004 | +2.2% |
| 2008 | +10.4% |
| 2012 | +7.8% |
| 2016 | −18.9% |
| 2020 | −21.5% |
| 2024 | −26.2% |
DemocraticRepublican
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| R | 3,942 | 6,820 | 10,980 | ||
| R | 4,213 | 6,572 | 10,989 | ||
| R | 3,787 | 5,720 | 10,236 | ||
| D | 5,534 | 4,721 | 10,449 | ||
| D | 5,446 | 4,405 | 10,004 | ||
| D | 5,054 | 4,834 | 9,978 | ||
| D | 4,690 | 4,201 | 9,143 | ||
| D | 4,668 | 3,083 | 8,581 | ||
| D | 3,508 | 3,071 | 8,900 | ||
| D | 4,641 | 3,496 | 8,185 | ||
| R | 3,825 | 4,907 | 8,791 | ||
| R | 3,521 | 4,506 | 8,913 | ||
| R | 4,245 | 4,463 | 8,831 | ||
| R | 3,468 | 4,962 | 8,521 | ||
| R | 3,415 | 4,513 | 8,412 | ||
| D | 5,511 | 3,154 | 8,672 | ||
| R | 3,924 | 5,541 | 9,469 | ||
| R | 3,352 | 5,605 | 8,967 | ||
| R | 2,991 | 6,070 | 9,073 | ||
| R | 3,915 | 4,290 | 8,322 | ||
| R | 3,563 | 4,453 | 8,032 | ||
| R | 4,273 | 5,630 | 9,929 | ||
| D | 5,052 | 4,141 | 9,356 | ||
| D | 4,952 | 3,500 | 8,501 | ||
| R | 2,976 | 5,090 | 8,101 | ||
| R | 2,212 | 4,524 | 7,918 | ||
| R | 2,436 | 5,962 | 8,461 | ||
| R | 1,966 | 2,848 | 4,858 | ||
| D | 2,189 | 1,622 | 4,567 | ||
| R | 2,176 | 2,453 | 4,707 | ||
| R | 1,834 | 2,833 | 4,788 | ||
| R | 2,052 | 3,021 | 5,145 | ||
| R | 2,143 | 3,057 | 5,285 | ||
| D | 2,439 | 2,419 | 4,930 | ||
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Demographics
2024 ACS
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
37.4%
Irish
16.4%
English
8.5%
American
5.2%
Scottish
3.1%
French
2.0%
Italian
1.8%
African American
2.0%
Multiple ancestry combinations reported; no single grouping above 1%.
Sample size too small to break out by ancestry reliably.
American Indian, Alaska Native, Native Hawaiian, and Pacific Islander combined.
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
Age distribution by sex
Median age: 42.8 in this county, 39.1 nationally
Male
Age
Female
85+
75–84
65–74
55–64
45–54
35–44
25–34
18–24
5–17
<5
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Median household income
Inflation-adjusted dollars
$73,531
Jones County ranks near the middle of US counties.
Jones County$73,531
Iowa$75,059
United States$80,734
Jones County ranks near the middle of US counties by median household income.
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Poverty rate
All persons below federal poverty line
12.0%
Children face moderate poverty.
Children under 1816.9%
Working age (18–64)10.8%
Seniors (65+)10.1%
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Language at home
Population aged 5 and older
97.2%
speak English only
Spanish2.2%
Other Indo-European0.4%
Asian & Pacific Islander0.2%
Other languages0.1%
Source · ACS 5-year estimates, 2024.
2020 religion census
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 54.0% of residents not counted as adherents by any reporting body.
Jones County's population of roughly 20,000 is concentrated in small agricultural towns like Anamosa, and its presidential margins have widened consistently over the past four cycles, reaching R+26 in 2024.
The Democratic margin here peaked at twenty-seven points in 1964. Between 2020 and 2024 the county moved five points toward the Republican candidate; the 2024 margin was twenty-six points.
A population of 20,896, a 92% non-Hispanic-white share, and a median household income of $73,531 describe the county. The county's voting pattern over the last decade is most similar to that of Day County and Jasper County.
Most similar counties
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.
Jones County, Iowa. Akashic. https://akashic.app/county/19105/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
More heartland swing counties
Frequently asked questions
How did Jones County, Iowa vote in 2024?
In 2024, Jones County, Iowa voted Republican by 26.2 points (R+26), carried by the Republican candidate. Out of 10,980 votes cast, 3,942 went Democratic and 6,820 went Republican.
What is Jones County, Iowa's political typology?
Akashic places Jones County, Iowa in the "Heartland Swing" typology — Industrial Midwest swing counties drifting steadily toward the Republican Party. 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 county has voted Democratic 12 times, Republican 22 times, and other 0 times.
When did Jones County, Iowa last vote Democratic?
The most recent presidential election in which Jones County, Iowa voted Democratic was 2012.
How many people live in Jones County, Iowa?
Jones County, Iowa has a population of 20,896 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Jones County, Iowa?
Median household income in Jones County, Iowa is $73,531 — below the national median of $80,734. The Iowa state median is $75,059.
What is the political history of Jones County, Iowa?
Akashic tracks 38 presidential elections in Jones County, Iowa from 1876 to 2024. Of those, 12 went Democratic and 22 went Republican. The county's typology — "Heartland Swing" — captures where that record, its demographics, and its recent swing place it among American communities.