St. Clair County, Michigan
St. Clair County, Michigan · ZIP 48001, 48002, 48006
- Census data · ACS 2019-2023
- 160,308 (2024 estimate)Population
- 66,618Households
- $69,349Median household income
- $213,900Median home value
- 34Towns with a page
- 23ZIP codes
St. Clair County in numbersOfficial sources, refreshed yearly
| Census | Population |
|---|---|
| 2000 | 164,235 |
| 2010 | 163,040 |
| 2020 | 160,383 |
As counted at each census, within the boundaries the area had then; the current estimate is in the glance card.
Sources: Census 2000 Summary File 1: total population, county level, state 26, retrieved November 14, 2026; Census 2010 Summary File 1: total population, county level, state 26, retrieved November 14, 2026; Census 2020 Redistricting Data (P.L. 94-171): total population, county level, state 26, retrieved November 14, 2026.
Median household income $69,349 · Share of households by income, American Community Survey 5-year 2019-2023, table S1901.
Source: American Community Survey 5-year subject table S1901 (household income) 2019–2023, county level, state 26, retrieved November 14, 2026.
- Owner occupied
- 53,655 units
- Renter occupied
- 12,963 units
- Vacancy rate
- 8.1%
Occupied housing units by tenure and the share of all units vacant, American Community Survey 5-year 2019-2023, table DP04.
Source: American Community Survey 5-year data profile 2019–2023, county level, state 26, retrieved November 14, 2026.
41,206 employees in 3,080 establishments with payroll in 2023, all sectors; employers themselves are not named in the source. County Business Patterns counts are published with noise.
Source: County Business Patterns 2023: employment by sector, county level, state 26, retrieved November 14, 2026.
| Measure | St. Clair County | Michigan |
|---|---|---|
| Population | 160,089 | 10,051,595 |
| Median household income | $69,349 | $71,149 |
| Median age | 44.3 | 40.1 |
| Median home value | $213,900 | $217,600 |
| Bachelor’s degree or higher | 20.3% | 31.8% |
| Foreign-born residents | 2.0% | 7.0% |
| Owner-occupied homes | 80.5% | 72.9% |
| Mean commute to work | 28.7 minutes | 24.4 minutes |
Source: American Community Survey 5-year data profile 2019–2023, county level, state 26, retrieved November 14, 2026.
Townships, towns and villages in St. Clair County34 with a page · sort by any column
| Type | |||
|---|---|---|---|
| Port Huron | City | 28,342 | 8.10 sq mi |
| Fort Gratiot Township | Charter township | 11,693 | 16.0 sq mi |
| Port Huron Township | Charter township | 10,669 | 12.8 sq mi |
| Marysville | City | 9,868 | 7.33 sq mi |
| Kimball Township | Township | 9,625 | 37.1 sq mi |
| Clay Township | Township | 8,277 | 35.5 sq mi |
| St. Clair Township | Township | 7,130 | 38.4 sq mi |
| St. Clair | City | 5,824 | 2.94 sq mi |
| Clyde Township | Township | 5,431 | 35.7 sq mi |
| Ira Township | Township | 5,084 | 17.0 sq mi |
| Pearl Beach | Census designated place | 4,846 | 4.80 sq mi |
| Casco Township | Township | 4,327 | 36.9 sq mi |
| Columbus Township | Township | 4,267 | 36.6 sq mi |
| Mussey Township | Township | 4,175 | 35.7 sq mi |
| Algonac | City | 4,111 | 1.42 sq mi |
| Burtchville Township | Township | 4,039 | 15.5 sq mi |
| Marine City | City | 4,006 | 2.16 sq mi |
| East China Township | Township | 3,659 | 6.59 sq mi |
| China Township | Township | 3,501 | 34.2 sq mi |
| Cottrellville Township | Township | 3,438 | 20.9 sq mi |
| Riley Township | Township | 3,188 | 38.2 sq mi |
| Wales Township | Township | 3,175 | 37.4 sq mi |
| Berlin Township | Township | 3,126 | 37.1 sq mi |
| Emmett Township | Township | 2,520 | 35.3 sq mi |
| Kenockee Township | Township | 2,379 | 35.7 sq mi |
| Capac | Village | 1,946 | 1.87 sq mi |
| Yale | City | 1,878 | 1.37 sq mi |
| Brockway Township | Township | 1,874 | 33.7 sq mi |
| Grant Township | Township | 1,797 | 29.7 sq mi |
| Greenwood Township | Township | 1,478 | 35.8 sq mi |
| Lynn Township | Township | 1,114 | 35.7 sq mi |
| Lakeport | Census designated place | 746 | 1.03 sq mi |
| Ruby | Census designated place | 705 | 3.75 sq mi |
| Emmett | Village | 236 | 1.50 sq mi |
Populations: Census Population Estimates, Vintage 2024: subcounty totals, state 26 (2024). Land areas: Census Gazetteer 2025: counties. A dash means the figure is not in the cited file.
County officialsFrom public records
No county official is published yet. Names appear once a researcher drafts them from the county’s own site and a second person approves; office contacts only, never personal details.
Across St. Clair County
No job is posted in St. Clair County’s towns yet. Employers post from their business dashboard; public job banks are added once their terms are recorded.
No upcoming event is listed in St. Clair County's towns yet. Members and businesses add events from any town page.
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Neighboring counties
Neighboring counties
- Lapeer CountyPopulation 89,168 (2024 estimate)
- Macomb CountyPopulation 886,175 (2024 estimate)
- Sanilac CountyPopulation 40,293 (2024 estimate)
Sources: Census county adjacency file 2024, retrieved November 14, 2026; Census Population Estimates, Vintage 2024: subcounty totals, state 26, retrieved November 14, 2026.