Data as of November 4, 2026 · refreshed automatically from the official Indiana voter file
St. Joseph County, Indiana has 192,687 active registered voters across 211 precincts, as of November 2026.
Party registration
Indiana doesn't register voters by party, so there's no party breakdown to show. Party lean is usually inferred from primary participation; that data is in the voter file and available inside Motion51.
How St. Joseph County voted for president
Election results are public records.
St. Joseph County at a glance.
St. Joseph County had an estimated 273,744 residents in July 2024, the fifth most populous of Indiana's 92 counties, up 0.3% since the 2020 census. Of those, 211,200 are 18 or older, the voting-age population, and 17.5% are 65 or older. Its 192,687 active registered voters equal about 91.2% of that voting-age population.
It covers 458 square miles of land (598 people per square mile). The largest cities and towns are South Bend (103,713), Mishawaka (51,020), Osceola (2,600), Walkerton (2,098) and New Carlisle (1,913). The American Community Survey (2020-2024) puts it at a median age of 36.7, a median household income of $66,868, 33.5% of adults 25 and older holding a bachelor's degree or higher and 69.0% of occupied homes owned by the people living in them.
In 2024, 110,419 votes were cast for president, about 52.3% of the voting-age population; the Democratic ticket took 50.0% and the Republican ticket 48.5%. The two-party margin moved from D+17.0 in 2008 to D+1.5 in 2024.
- Population (2024 estimate)
- 273,744
- Population (2020 census base)
- 272,908
- Voting-age population (18+)
- 211,200
- Active voters per 100 adults
- 91.2
- Residents 65 and older
- 17.5%
- People per square mile
- 598
- Land area
- 458 sq mi
- Median age
- 36.7
- Median household income
- $66,868
- Adults 25+ with a bachelor's degree
- 33.5%
- Owner-occupied homes
- 69.0%
Largest cities and towns
- South Bend 103,713
- Mishawaka 51,020
- Osceola 2,600
- Walkerton 2,098
- New Carlisle 1,913
Presidential vote, 2008–2024
| Year | Democratic | Republican | Margin | Votes cast |
|---|---|---|---|---|
| 2024 | 50.0% | 48.5% | D+1.5 | 110,419 |
| 2020 | 52.0% | 46.1% | D+5.9 | 115,238 |
| 2016 | 47.7% | 47.5% | D+0.2 | 109,452 |
| 2012 | 51.0% | 47.5% | D+3.5 | 110,644 |
| 2008 | 58.0% | 41.0% | D+17.0 | 118,389 |
Sources: U.S. Census Bureau Vintage 2024 population estimates and 2024 Gazetteer; American Community Survey 2020–2024 5-year estimates; certified county presidential returns. Growth, density and turnout are simple arithmetic on those figures.
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