County · Michigan

St. Clair County, Michigan

St. Clair County, Michigan has a quality-of-life score of 47 out of 100 (moderate), ranking #1,656 of 3,143 US counties. Within Michigan it ranks #55 of 83 counties. It ranks best on uninsured residents (under 65) (low), voter turnout (high) and public transit commuters (high). It ranks worst on days with unhealthy air (high), high ozone days (high) and rent as share of income (high).

47Moderate
Quality-of-life score
#1,656 of 3,143 counties
Michigan
#55 of 83 in MI
Population
160,486 (2025)
Land area
722 mi²
Density
222.4 /mi²
FIPS code
26147

Percentile-based score (100 is the best in the country) from 80 of 80 indicators, with the default “Explorer” weights.

Location of St. Clair County, Michigan

Scores by category

Each category averages its indicators' percentile scores among US counties.

  • Safety60#1,240/3,096
  • Economy58#1,336/3,143
  • Housing18#2,564/3,140
  • Health51#1,551/3,144
  • Healthcare74#824/3,143
  • Environment22#2,413/3,108
  • Education40#1,886/3,144
  • Infrastructure73#853/3,144
  • Community52#1,518/3,144
  • Leisure & amenities34#2,067/3,143

Strengths · Weaknesses

Indicators where St. Clair County, Michigan ranks highest and lowest among US counties (score = percentile, 100 = best).

Strengths

Weaknesses

What changed in five years

How each measure moved between two periods about five years apart, read against whether more or less is better, the published margin of error and the same change in other places.

Counties like St. Clair County, Michigan five years ago that improved

The places whose measures looked most like those of St. Clair County, Michigan in the earlier period, ranked by how many measures improved beyond the margin of error, minus how many declined. A comparison of published data, not a forecast and not advice.

Who lives here

Age, race and education of residents, from the American Community Survey. Shares are of all residents (age), residents of every origin (race) or adults 25 and over (education).

Income

How household income is spread, not just the middle: each bar is the share of households in that income range.

Homes

Who owns and who rents, what homes cost, and what the housing stock looks like.

Getting to work

How workers travel to their job and how long it takes them.

Jobs and pay

What the largest occupations here pay, from the Bureau of Labor Statistics' Occupational Employment and Wage Statistics survey.

The Bureau of Labor Statistics publishes pay by metro area, not by county or city. The metro area page lists its largest occupations and lets you look up any job.

Pay in the Detroit-Warren-Dearborn, MI

Local businesses

Employer businesses and sole proprietors by industry, per resident and against the state and the nation. Counts of businesses next to counts of people, not a measure of demand.

Federal contract spending

Federal grants & assistance

Grants, loans (counted at their subsidy cost), direct payments and insurance, by fiscal year of the action (USAspending.gov, FABS). Reported apart from contracts and never added to them.

Public money & outcomes

Federal money per resident by fiscal year next to how the place changed, and, when its money jumped, how it compares with similar counties. A comparison, not cause and effect.

Representation in Congress

Members serving today, with their record in the current Congress (party-unity votes cast with their caucus, roll calls missed). Not a grade.

Metro area

The metro or micro area St. Clair County belongs to. A county is in at most one.

Cities and towns in St. Clair County

Places whose residents live mostly in St. Clair County, largest first.

  1. Port Huron28,620
  2. Marysville9,925
  3. St. Clair5,585
  4. Pearl Beach4,506
  5. Algonac4,139
  6. Marine City4,028
  7. Yale2,129
  8. Capac1,970
  9. Lakeport742
  10. Ruby714
  11. Emmett207

Neighboring counties

Places that share a border, best score first.

Similar counties

Closest indicator profiles across the country (no model: score distances).

Data and sources

Latest published value of each indicator; periods differ by source. Values flagged by their publisher are marked.

JSON · /api/v1/places/26147