St. Joseph County, Indiana: Industrial Catholic Metro county. In 2024, voted D+1%. Republican peak: R+29 in 1904.
Key facts
- 2024 presidential margin
- D+1MIT Election Lab
- Political typology
- Industrial Catholic MetroAkashic typology
- Population
- 273,0402024 5-year
- Median household income
- $66,8682024 5-year
- White (non-Hispanic)
- 71.0%2024 5-year
- Black
- 12.5%2024 5-year
- Hispanic / Latino
- 10.5%2024 5-year
- Peak Democratic margin
- D+25 in 1936MIT Election Lab
- Peak Republican margin
- R+29 in 1904MIT Election Lab
- Most similar
- Peoria County, IL · similarity 0.94
2024 results by precinct
2024 precinct map of St. Joseph CountyPrecinct-level 2024 presidential results for St. Joseph 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 | +7.4% |
| 1896 | −6.6% |
| 1900 | −7.7% |
| 1904 | −29.1% |
| 1908 | −12.8% |
| 1912 | +14.4% |
| 1916 | +9.4% |
| 1920 | −17.0% |
| 1924 | −21.0% |
| 1928 | −15.6% |
| 1932 | +14.3% |
| 1936 | +24.6% |
| 1940 | +11.5% |
| 1944 | +8.3% |
| 1948 | +11.3% |
| 1952 | −0.2% |
| 1956 | −3.3% |
| 1960 | +8.5% |
| 1964 | +24.4% |
| 1968 | +0.3% |
| 1972 | −21.7% |
| 1976 | −1.2% |
| 1980 | −6.2% |
| 1984 | −6.7% |
| 1988 | −1.5% |
| 1992 | +7.0% |
| 1996 | +8.0% |
| 2000 | +0.1% |
| 2004 | −2.4% |
| 2008 | +17.1% |
| 2012 | +3.5% |
| 2016 | +0.2% |
| 2020 | +5.8% |
| 2024 | +1.5% |
DemocraticRepublican
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| D | 55,215 | 53,585 | 110,824 | ||
| D | 59,896 | 53,164 | 115,238 | ||
| D | 52,247 | 52,019 | 111,835 | ||
| D | 56,460 | 52,578 | 111,009 | ||
| D | 68,710 | 48,510 | 118,389 | ||
| R | 52,637 | 55,254 | 108,619 | ||
| D | 47,703 | 47,581 | 97,474 | ||
| D | 45,704 | 38,281 | 93,188 | ||
| D | 46,203 | 38,934 | 104,465 | ||
| R | 48,056 | 49,481 | 97,864 | ||
| R | 47,513 | 54,404 | 102,493 | ||
| R | 44,218 | 50,607 | 103,114 | ||
| R | 49,156 | 50,358 | 100,324 | ||
| R | 41,629 | 64,808 | 107,039 | ||
| D | 47,414 | 47,114 | 106,864 | ||
| D | 65,844 | 39,872 | 106,346 | ||
| D | 63,553 | 53,621 | 117,499 | ||
| R | 54,152 | 57,827 | 112,472 | ||
| R | 53,269 | 53,537 | 107,632 | ||
| D | 49,866 | 39,593 | 90,846 | ||
| D | 47,149 | 39,875 | 87,589 | ||
| D | 45,620 | 36,164 | 82,158 | ||
| D | 43,131 | 25,807 | 70,339 | ||
| D | 38,026 | 28,198 | 68,563 | ||
| R | 26,846 | 36,844 | 64,006 | ||
| R | 15,056 | 23,682 | 41,082 | ||
| R | 12,355 | 17,675 | 31,305 | ||
| D | 9,709 | 7,961 | 18,505 | ||
| O | 5,391 | 3,146 | 15,601 | ||
| R | 8,562 | 11,222 | 20,813 | ||
| R | 5,967 | 11,166 | 17,854 | ||
| R | 6,948 | 8,127 | 15,305 | ||
| R | 6,247 | 7,138 | 13,521 | ||
| D | 6,077 | 5,220 | 11,619 | ||
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Demographics
2024 ACS
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
18.6%
Irish
12.1%
English
8.8%
Polish
7.8%
American
6.4%
Italian
3.7%
French
1.5%
African American
10.0%
Multiple ancestry combinations reported; no single grouping above 1%.
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: 36.7 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
$66,868
St. Joseph County ranks near the middle of US counties.
St. Joseph County$66,868
Indiana$71,957
United States$80,734
St. Joseph 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
14.2%
Children face moderate poverty.
Children under 1819.7%
Working age (18–64)12.4%
Seniors (65+)13.8%
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Language at home
Population aged 5 and older
88.9%
speak English only
Spanish6.7%
Other Indo-European1.7%
Asian & Pacific Islander1.7%
Other languages1.1%
Source · ACS 5-year estimates, 2024.
2020 religion census
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 60.3% of residents not counted as adherents by any reporting body.
Home to South Bend and the University of Notre Dame, St. Joseph County has trended competitive over the last decade, with its 2024 presidential margin landing within 1.5 points — unusually close for a county anchored by a major research university.
Its margins are typically close. The Democratic margin reached twenty-five points in 1936; the Republican margin reached twenty-nine points in 1904. Between 2020 and 2024 the county moved four points toward the Republican candidate; the 2024 margin was one point.
Its demographics sit near national norms: a 71% non-Hispanic-white share, a median household income of $66,868, and a 14% poverty rate. The county's voting pattern over the last decade is most similar to that of Peoria County and Sandoval 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.
St. Joseph County, Indiana. Akashic. https://akashic.app/county/18141/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
More industrial catholic metro counties
Frequently asked questions
How did St. Joseph County, Indiana vote in 2024?
In 2024, St. Joseph County, Indiana voted Democratic by 1.5 points (D+1), carried by the Democratic candidate. Out of 110,824 votes cast, 55,215 went Democratic and 53,585 went Republican.
What is St. Joseph County, Indiana's political typology?
Akashic places St. Joseph County, Indiana in the "Industrial Catholic Metro" typology — Mid-size industrial metros with Catholic ethnic roots — among the most competitive, swing-prone ground in the country. 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 18 times, Republican 15 times, and other 1 times.
When did St. Joseph County, Indiana last vote Republican?
The most recent presidential election in which St. Joseph County, Indiana voted Republican was 2004.
How many people live in St. Joseph County, Indiana?
St. Joseph County, Indiana has a population of 273,040 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in St. Joseph County, Indiana?
Median household income in St. Joseph County, Indiana is $66,868 — below the national median of $80,734. The Indiana state median is $71,957.
What is the political history of St. Joseph County, Indiana?
Akashic tracks 38 presidential elections in St. Joseph County, Indiana from 1876 to 2024. Of those, 18 went Democratic and 15 went Republican. The county's typology — "Industrial Catholic Metro" — captures where that record, its demographics, and its recent swing place it among American communities.