Bon Homme County, South Dakota: Heartland Swing county. In 2024, voted R+51%. Republican peak: R+51 in 2024.
Key facts
- 2024 presidential margin
- R+51MIT Election Lab
- Political typology
- Heartland SwingAkashic typology
- Population
- 7,0442024 5-year
- Median household income
- $64,4352024 5-year
- White (non-Hispanic)
- 86.5%2024 5-year
- Black
- 2.3%2024 5-year
- Hispanic / Latino
- 2.4%2024 5-year
- Peak Democratic margin
- D+45 in 1912MIT Election Lab
- Peak Republican margin
- R+51 in 2024MIT Election Lab
- Most similar
- Clark County, SD · similarity 1.00
2024 results by precinct
2024 precinct map of Bon Homme CountyPrecinct-level 2024 presidential results for Bon Homme County, with each precinct boundary colored by Democratic-vs-Republican margin.
—
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 | −34.9% |
| 1896 | −13.1% |
| 1900 | −10.5% |
| 1904 | −26.6% |
| 1908 | −12.9% |
| 1912 | +44.6% |
| 1916 | −1.8% |
| 1920 | −25.9% |
| 1924 | −16.5% |
| 1928 | −2.2% |
| 1932 | +44.0% |
| 1936 | +13.6% |
| 1940 | −10.6% |
| 1944 | −12.6% |
| 1948 | −4.7% |
| 1952 | −31.1% |
| 1956 | −11.4% |
| 1960 | −14.2% |
| 1964 | +16.6% |
| 1968 | −14.6% |
| 1972 | +5.6% |
| 1976 | +6.3% |
| 1980 | −37.8% |
| 1984 | −27.4% |
| 1988 | −7.4% |
| 1992 | +2.4% |
| 1996 | +4.1% |
| 2000 | +23.5% |
| 2004 | −22.6% |
| 2008 | −10.9% |
| 2012 | −21.6% |
| 2016 | −47.1% |
| 2020 | −50.4% |
| 2024 | −51.4% |
DemocraticRepublican
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| R | 697 | 2,236 | 2,992 | ||
| R | 721 | 2,235 | 3,001 | ||
| R | 704 | 2,105 | 2,974 | ||
| R | 1,167 | 1,830 | 3,074 | ||
| R | 1,367 | 1,712 | 3,175 | ||
| R | 1,293 | 2,063 | 3,408 | ||
| D | 1,901 | 1,162 | 3,139 | ||
| D | 1,569 | 1,428 | 3,436 | ||
| D | 1,294 | 1,212 | 3,367 | ||
| R | 1,574 | 1,826 | 3,417 | ||
| R | 1,408 | 2,478 | 3,906 | ||
| R | 1,191 | 2,794 | 4,239 | ||
| D | 2,154 | 1,897 | 4,073 | ||
| D | 2,368 | 2,116 | 4,493 | ||
| R | 1,773 | 2,411 | 4,383 | ||
| D | 2,494 | 1,784 | 4,278 | ||
| R | 2,052 | 2,730 | 4,782 | ||
| R | 2,144 | 2,696 | 4,840 | ||
| R | 1,658 | 3,157 | 4,815 | ||
| R | 2,077 | 2,283 | 4,408 | ||
| R | 1,981 | 2,553 | 4,534 | ||
| R | 2,463 | 3,046 | 5,509 | ||
| D | 2,959 | 2,236 | 5,299 | ||
| D | 3,504 | 1,354 | 4,886 | ||
| R | 2,166 | 2,262 | 4,441 | ||
| R | 860 | 1,420 | 3,398 | ||
| R | 960 | 1,872 | 3,517 | ||
| R | 1,231 | 1,278 | 2,569 | ||
| O | 1,059 | 0 | 2,372 | ||
| R | 1,014 | 1,324 | 2,396 | ||
| R | 886 | 1,547 | 2,483 | ||
| R | 1,028 | 1,271 | 2,314 | ||
| R | 893 | 1,163 | 2,063 | ||
| R | 260 | 879 | 1,775 | ||
| — | — | — | — | ||
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Demographics
2024 ACS
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
37.5%
Irish
9.3%
English
7.6%
American
2.7%
French
2.1%
Scottish
1.3%
Polish
0.8%
African American
1.8%
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: 42.1 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
$64,435
Bon Homme County ranks near the middle of US counties.
Bon Homme County$64,435
South Dakota$75,081
United States$80,734
Bon Homme 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
10.6%
Children face moderate poverty.
Children under 1818.4%
Working age (18–64)7.8%
Seniors (65+)10.7%
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Language at home
Population aged 5 and older
93.3%
speak English only
Other Indo-European2.7%
Other languages1.9%
Spanish1.6%
Asian & Pacific Islander0.4%
Source · ACS 5-year estimates, 2024.
2020 religion census
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 49.3% of residents not counted as adherents by any reporting body.
Bon Homme County, anchored by the Missouri River bottomlands and a tight-knit agricultural economy, has delivered Republican presidential margins above 50 points in recent cycles, reflecting the deep-red alignment typical of South Dakota's rural, small-population counties.
The Democratic margin here peaked at forty-five points in 1912. Between 2020 and 2024 the county moved one point toward the Republican candidate; the 2024 margin was fifty-one points.
A population of 7,044, a 87% non-Hispanic-white share, and a median household income of $64,435 describe the county. The county's voting pattern over the last decade is most similar to that of Clark County and Kingsbury 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.
Bon Homme County, South Dakota. Akashic. https://akashic.app/county/46009/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
More in South Dakota
More heartland swing counties
Frequently asked questions
How did Bon Homme County, South Dakota vote in 2024?
In 2024, Bon Homme County, South Dakota voted Republican by 51.4 points (R+51), carried by the Republican candidate. Out of 2,992 votes cast, 697 went Democratic and 2,236 went Republican.
What is Bon Homme County, South Dakota's political typology?
Akashic places Bon Homme County, South Dakota 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 8 times, Republican 25 times, and other 1 times.
When did Bon Homme County, South Dakota last vote Democratic?
The most recent presidential election in which Bon Homme County, South Dakota voted Democratic was 2000.
How many people live in Bon Homme County, South Dakota?
Bon Homme County, South Dakota has a population of 7,044 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Bon Homme County, South Dakota?
Median household income in Bon Homme County, South Dakota is $64,435 — below the national median of $80,734. The South Dakota state median is $75,081.
What is the political history of Bon Homme County, South Dakota?
Akashic tracks 38 presidential elections in Bon Homme County, South Dakota from 1876 to 2024. Of those, 8 went Democratic and 25 went Republican. The county's typology — "Heartland Swing" — captures where that record, its demographics, and its recent swing place it among American communities.