St. Clair, Michigan Demographics & Population 2026
During the 2020–2024 ACS period, St. Clair, Michigan had a total population of 5,585, the 168th largest city in Michigan, with a median household income of $69,688, which is 4% lower than the state average. The poverty rate is 7.1%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Near full employment with an unemployment rate of just 0.8%.
St. Clair Quick Facts
How St. Clair Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 5,581 | 5,585 | +0.1% |
| Median household income | $68,482 | $69,688 | +1.8% |
| Median home value | $241,700 | $223,200 | -7.7% |
How St. Clair Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 45 | National average: 61
Education
Educational Attainment (Adults 25+)
St. Clair Rankings in Michigan
Explore Michigan Rankings
Other Cities in St. Clair County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Port Huron | 28,620 | $50,366 | 22.6% | $149,300 |
| Marysville | 9,925 | $66,901 | 6.4% | $208,600 |
| Pearl Beach | 4,506 | $83,208 | 10.0% | $301,700 |
| Algonac | 4,139 | $56,820 | 14.5% | $199,500 |
| Marine City | 4,028 | $67,683 | 7.6% | $159,800 |
| Yale | 2,129 | $53,236 | 18.0% | $127,100 |
| Capac | 1,970 | $60,329 | 12.5% | $161,700 |
| Lakeport | 742 | $54,236 | 17.3% | $206,400 |
| Ruby | 714 | $69,077 | 2.7% | $223,800 |
| Emmett | 207 | $120,074 | 1.9% | $145,800 |
Cities Similar to St. Clair
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Chelsea | 5,426 | $72,098 | $312,700 | 51.8% | 4.1% |
| Swartz Creek | 5,853 | $71,571 | $174,200 | 22.1% | 10.9% |
| Comstock Northwest | 5,391 | $73,475 | $261,100 | 38.1% | 6.9% |
| Petoskey | 5,856 | $74,196 | $364,100 | 53.4% | 9.0% |
| Richmond | 5,855 | $64,719 | $237,700 | 25.1% | 13.5% |
Population Overview
St. Clair is a small city located in Michigan, within St. Clair County. The total population is 5,585. It ranks as the 168th most populous out of 745 Census-designated places in Michigan.
Age Demographics
The median age in St. Clair is 42.0 years. This is 4% higher than the state median of 40.2 years.
Economy, Income & Housing
The median household income in St. Clair is $69,688. This is 4% lower than the state median of $72,875. It is also 14% lower than the national median of $80,734. The poverty rate stands at 7.1%. This is 46% lower than the state poverty rate of 13.2%. The unemployment rate is 0.8%. This is 86% lower than the state rate of 5.7%. The median home value is $223,200. Housing costs are 4% lower than the state median of $231,600. The home-value-to-income ratio is 3.2x. 68.0% of occupied housing units are owner-occupied. This homeownership rate is 7% lower than the state average of 73.2%.
Race & Ethnicity
St. Clair has a predominantly White (non-Hispanic) population, comprising 92.1% of all residents. Black or African American residents account for 3.7%. The Black or African American population (3.7%) is well below the state average of 13.1%. The Hispanic or Latino population (1.7%) is well below the state average of 5.9%.
Education
27.4% of residents aged 25 and older hold a bachelor's degree or higher. This is 16% lower than the state rate of 32.5%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 94.8%.
Data Sources & Methodology
All demographic data for St. Clair, Michigan is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Michigan state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 745 Census-designated places in Michigan. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
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Frequently Asked Questions
What is the population of St. Clair, Michigan?
St. Clair, Michigan has a population of 5,585 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in St. Clair, MI?
The median household income in St. Clair is $69,688, which is 14% lower than the national median of $80,734.
What is the poverty rate in St. Clair, MI?
The poverty rate in St. Clair is 7.1%. This means approximately 395 residents live below the federal poverty line.
What is the racial makeup of St. Clair, Michigan?
St. Clair's population is 92.1% White, 3.7% Black, 1.7% Hispanic/Latino, and 0.0% Asian.
What is the median home value in St. Clair, MI?
The median home value in St. Clair is $223,200. The home-value-to-income ratio is 3.2x.
How educated is St. Clair, Michigan?
27.4% of adults (25+) in St. Clair hold a bachelor's degree or higher, and 6.9% hold a graduate or professional degree.