Voter file loaded July 30, 2026 · figures are from that file, held as a fixed record
St. Joseph County, Michigan has 48,985 active registered voters across 23 precincts, as of August 2026.
Party registration
Michigan 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.
Most reliable-voting precincts
| # | Precinct | Active voters | Supervoters | Supervoter % |
|---|---|---|---|---|
| 1 | FLOWERFIELD TOWNSHIP P1 | 1,395 | 673 | 48.24% |
| 2 | SHERMAN TOWNSHIP P1 | 2,648 | 1,259 | 47.55% |
| 3 | PARK TOWNSHIP P1 | 2,045 | 937 | 45.82% |
| 4 | FABIUS TOWNSHIP P1 | 2,923 | 1,336 | 45.71% |
| 5 | FLORENCE TOWNSHIP P1 | 918 | 409 | 44.55% |
| 6 | MENDON TOWNSHIP P1 | 2,397 | 1,026 | 42.8% |
| 7 | LOCKPORT TOWNSHIP P1 | 3,259 | 1,387 | 42.56% |
| 8 | NOTTAWA TOWNSHIP P1 | 2,797 | 1,160 | 41.47% |
| 9 | COLON TOWNSHIP P1 | 2,516 | 984 | 39.11% |
| 10 | WHITE PIGEON TOWNSHIP P1 | 3,137 | 1,194 | 38.06% |
Supervoters are active registered voters who cast a ballot in at least 3 of the last 4 November general elections (2018–2024). Percentages are precinct totals from the official state voter file — no individual voter information is shown. Precincts with fewer than 400 active voters are excluded.
How St. Joseph County voted for president
Election results are public records.
St. Joseph County at a glance.
St. Joseph County had an estimated 61,171 residents in July 2024, the 33rd most populous of Michigan's 83 counties, up 0.4% since the 2020 census. Of those, 46,548 are 18 or older, the voting-age population, and 19.9% are 65 or older. Its 48,985 active registered voters equal about 105.2% of that voting-age population.
It covers 501 square miles of land (122 people per square mile). The largest towns and cities are Sturgis (11,030), Three Rivers (7,958), Constantine (4,061), Lockport (3,818) and White Pigeon (3,805). The American Community Survey (2020-2024) puts it at a median age of 39.9, a median household income of $66,425, 16.9% of adults 25 and older holding a bachelor's degree or higher and 76.1% of occupied homes owned by the people living in them.
In 2024, 29,307 votes were cast for president, about 63.0% of the voting-age population; the Democratic ticket took 32.3% and the Republican ticket 66.2%. The two-party margin moved from R+2.2 in 2008 to R+33.9 in 2024.
- Population (2024 estimate)
- 61,171
- Population (2020 census base)
- 60,940
- Voting-age population (18+)
- 46,548
- Active voters per 100 adults
- 105.2
- Residents 65 and older
- 19.9%
- People per square mile
- 122
- Land area
- 501 sq mi
- Median age
- 39.9
- Median household income
- $66,425
- Adults 25+ with a bachelor's degree
- 16.9%
- Owner-occupied homes
- 76.1%
Largest towns and cities
- Sturgis 11,030
- Three Rivers 7,958
- Constantine 4,061
- Lockport 3,818
- White Pigeon 3,805
Presidential vote, 2008–2024
| Year | Democratic | Republican | Margin | Votes cast |
|---|---|---|---|---|
| 2024 | 32.3% | 66.2% | R+33.9 | 29,307 |
| 2020 | 33.2% | 64.9% | R+31.7 | 27,936 |
| 2016 | 31.7% | 62.6% | R+30.9 | 23,765 |
| 2012 | 43.3% | 55.7% | R+12.4 | 23,314 |
| 2008 | 47.9% | 50.1% | R+2.2 | 25,702 |
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.
Running in St. Joseph County?
The voter file is loaded. Create your campaign and start canvassing in minutes.
Start free in St. Joseph CountyAlso see: Motion51 in Michigan · How to run for office in St. Joseph County · Pricing