Voter file loaded July 30, 2026 · figures are from that file, held as a fixed record
Shiawassee County, Michigan has 57,746 active registered voters across 30 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 | OWOSSO TOWNSHIP P2 | 1,443 | 870 | 60.29% |
| 2 | NEW HAVEN TOWNSHIP P1 | 1,053 | 590 | 56.03% |
| 3 | BENNINGTON TOWNSHIP P1 | 2,750 | 1,540 | 56.0% |
| 4 | WOODHULL TOWNSHIP P1 | 3,325 | 1,823 | 54.83% |
| 5 | SCIOTA TOWNSHIP P1 | 1,614 | 876 | 54.28% |
| 6 | SHIAWASSEE TOWNSHIP P1 | 2,360 | 1,273 | 53.94% |
| 7 | MIDDLEBURY TOWNSHIP P1 | 1,298 | 690 | 53.16% |
| 8 | BURNS TOWNSHIP P1 | 2,793 | 1,482 | 53.06% |
| 9 | HAZELTON TOWNSHIP P1 | 1,826 | 951 | 52.08% |
| 10 | ANTRIM TOWNSHIP P1 | 1,810 | 939 | 51.88% |
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 Shiawassee County voted for president
Election results are public records.
Shiawassee County at a glance.
Shiawassee County had an estimated 67,982 residents in July 2024, the 28th most populous of Michigan's 83 counties, down 0.2% since the 2020 census. Of those, 54,152 are 18 or older, the voting-age population, and 20.9% are 65 or older. Its 57,746 active registered voters equal about 106.6% of that voting-age population.
It covers 531 square miles of land (128 people per square mile). The largest towns and cities are Owosso (14,544), Owosso (4,794), Caledonia (4,322), Vernon (4,316) and Perry (4,185). The American Community Survey (2020-2024) puts it at a median age of 43.2, a median household income of $67,404, 20.0% of adults 25 and older holding a bachelor's degree or higher and 80.1% of occupied homes owned by the people living in them.
In 2024, 40,682 votes were cast for president, about 75.1% of the voting-age population; the Democratic ticket took 37.7% and the Republican ticket 60.8%. The two-party margin moved from D+8.6 in 2008 to R+23.1 in 2024.
- Population (2024 estimate)
- 67,982
- Population (2020 census base)
- 68,085
- Voting-age population (18+)
- 54,152
- Active voters per 100 adults
- 106.6
- Residents 65 and older
- 20.9%
- People per square mile
- 128
- Land area
- 531 sq mi
- Median age
- 43.2
- Median household income
- $67,404
- Adults 25+ with a bachelor's degree
- 20.0%
- Owner-occupied homes
- 80.1%
Largest towns and cities
- Owosso 14,544
- Owosso 4,794
- Caledonia 4,322
- Vernon 4,316
- Perry 4,185
Presidential vote, 2008–2024
| Year | Democratic | Republican | Margin | Votes cast |
|---|---|---|---|---|
| 2024 | 37.7% | 60.8% | R+23.1 | 40,682 |
| 2020 | 39.1% | 59.0% | R+19.9 | 39,224 |
| 2016 | 36.9% | 56.5% | R+19.6 | 34,044 |
| 2012 | 51.2% | 47.5% | D+3.7 | 33,590 |
| 2008 | 53.3% | 44.7% | D+8.6 | 36,415 |
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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