Voter file loaded July 30, 2026 · figures are from that file, held as a fixed record
Sanilac County, Michigan has 32,601 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 | DELAWARE TOWNSHIP P1 | 690 | 399 | 57.83% |
| 2 | SANILAC TOWNSHIP P1 | 2,061 | 1,161 | 56.33% |
| 3 | ELMER TOWNSHIP P1 | 593 | 327 | 55.14% |
| 4 | CUSTER TOWNSHIP P1 | 723 | 396 | 54.77% |
| 5 | FORESTER TOWNSHIP P1 | 845 | 462 | 54.67% |
| 6 | LEXINGTON TOWNSHIP P1 | 3,032 | 1,622 | 53.5% |
| 7 | WATERTOWN TOWNSHIP P1 | 1,062 | 565 | 53.2% |
| 8 | FREMONT TOWNSHIP P1 | 753 | 397 | 52.72% |
| 9 | SPEAKER TOWNSHIP P1 | 1,102 | 570 | 51.72% |
| 10 | FLYNN TOWNSHIP P1 | 637 | 329 | 51.65% |
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 Sanilac County voted for president
Election results are public records.
Sanilac County at a glance.
Sanilac County had an estimated 40,293 residents in July 2024, the 41st most populous of Michigan's 83 counties, down 0.8% since the 2020 census. Of those, 32,055 are 18 or older, the voting-age population, and 24.6% are 65 or older. Its 32,601 active registered voters equal about 101.7% of that voting-age population.
It covers 963 square miles of land (42 people per square mile). The largest towns and cities are Lexington (3,457), Worth (3,445), Sandusky (2,679), Croswell (2,289) and Sanilac (2,287). The American Community Survey (2020-2024) puts it at a median age of 45.5, a median household income of $58,863, 16.5% of adults 25 and older holding a bachelor's degree or higher and 82.6% of occupied homes owned by the people living in them.
In 2024, 23,339 votes were cast for president, about 72.8% of the voting-age population; the Democratic ticket took 25.5% and the Republican ticket 73.2%. The two-party margin moved from R+8.0 in 2008 to R+47.7 in 2024.
- Population (2024 estimate)
- 40,293
- Population (2020 census base)
- 40,614
- Voting-age population (18+)
- 32,055
- Active voters per 100 adults
- 101.7
- Residents 65 and older
- 24.6%
- People per square mile
- 42
- Land area
- 963 sq mi
- Median age
- 45.5
- Median household income
- $58,863
- Adults 25+ with a bachelor's degree
- 16.5%
- Owner-occupied homes
- 82.6%
Largest towns and cities
- Lexington 3,457
- Worth 3,445
- Sandusky 2,679
- Croswell 2,289
- Sanilac 2,287
Presidential vote, 2008–2024
| Year | Democratic | Republican | Margin | Votes cast |
|---|---|---|---|---|
| 2024 | 25.5% | 73.2% | R+47.7 | 23,339 |
| 2020 | 26.6% | 72.1% | R+45.5 | 22,446 |
| 2016 | 25.3% | 69.9% | R+44.6 | 19,243 |
| 2012 | 39.3% | 59.7% | R+20.4 | 18,359 |
| 2008 | 44.9% | 52.9% | R+8.0 | 20,169 |
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 Sanilac County?
The voter file is loaded. Create your campaign and start canvassing in minutes.
Start free in Sanilac CountyAlso see: Motion51 in Michigan · How to run for office in Sanilac County · Pricing