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COUNTY

St. Clair County

Michigan · 160,486 residents (2025 est.) · 721 sq mi
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The short version

With 160,221 people, St. Clair County is a county in Michigan. Few US counties rank higher on income. Four-year degrees are less common here than nationally, at 20% of adults. 81% of homes are owner-occupied. The median age is 44.5, about 6 years above the US median. The foreign-born share is 2%.

At a glance
Lower income
below the US median
US median: $82,259
Older
median age 44.5
US median: 38.9
Less educated
20% hold a bachelor's degree
US average: 36%
Stable housing
home values roughly flat, inflation adjusted
US median home: $376,019
Section 01

Population & growth

Total population
160,221
−2%since 2000
from 164,235 in 2000
160,486 in 2025 (Census Bureau estimate)
1990 – 2025
Population density
222 / sq mi
−5%since 2009
from 235 / sq mi in 2009
US average: 281
Median age
44.5
+22%since 2000
from 36.4 in 2000
US average: 38.9
Land area
721 sq mi
Population, 1990 – 2024
143K150K157K165K172K19902000201020202024St. Clair County
2024160K
1990201020202024
Age distribution, 2024
Under 54.8%(7,752)
US avg: 5.6%
5 to 95.3%(8,509)
US avg: 6%
10 to 146.1%(9,833)
US avg: 6.4%
15 to 196.1%(9,801)
US avg: 6.6%
20 to 245.4%(8,686)
US avg: 6.5%
25 to 3411.4%(18,327)
US avg: 13.7%
35 to 4411.4%(18,214)
US avg: 13.2%
45 to 5413.1%(21,009)
US avg: 12.2%
55 to 6415.9%(25,441)
US avg: 12.7%
65 to 7412.5%(20,031)
US avg: 10.2%
75 to 845.6%(8,989)
US avg: 5.1%
85 and over2.3%(3,629)
US avg: 1.9%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

Median household income
$71,270
−16%inflation adjusted, since 2000
from $46,313 in 2000
US average: $82,259
1990 – 2024
Per capita income
$38,214
+77%since 2000
from $21,582 in 2000
US average: $44,673
Households earning $100K+
47.3%
+17.8 ptssince 2009
from 29.5% in 2009
US average: 53.3%
Poverty rate
11.3%
+3.5 ptssince 2000
from 7.8% in 2000
US average: 12.5%
Income inequality (Gini)
0.428
+5%since 2010
from 0.409 in 2010
US average: 0.476
Workforce by industry, 2024
Retail trade20.2%
US avg: 9.9%
Information11.9%
US avg: 10.8%
Wholesale trade8%
US avg: 6.9%
Finance & insurance5.8%
US avg: 5.9%
Professional, scientific, technical4.3%
US avg: 5.1%
Other services3.5%
US avg: 6.7%
Public administration2.6%
US avg: 4.8%
Education & health services1.5%
US avg: 0.9%
Transportation & warehousing1.4%
US avg: 2.2%
Agriculture, forestry, fishing1.3%
US avg: 1.6%
Arts, entertainment, food1.1%
US avg: 1.9%
Construction1%
US avg: 1.2%
Manufacturing0.3%
US avg: 0.4%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 03

Housing

Median home value
$224,600
Unchangedinflation adjusted, since 2000
from $122,700 in 2000
US average: $376,019
1990 – 2024
Median gross rent
$1,029
+5%inflation adjusted, since 2000
from $537 in 2000
US average: $1,442
Owner-occupied
80.8%
+1.2 ptssince 2000
from 79.6% in 2000
19.2% rent
Vacancy rate
6.8%
−3.1 ptssince 2009
from 9.9% in 2009
US average: 10.0%
Persons per household
2.34 people
−8%since 2009
from 2.54 people in 2009
US average: 2.54
Owner cost-burdened
19.5%
−11.8 ptssince 2009
from 31.3% in 2009
US average: 22.9%
Renter cost-burdened
51.8%
+2.9 ptssince 2009
from 49.0% in 2009
US average: 47.4%
Afford Score
3.2
+2%since 2009
from 3.1 in 2009
2009 – 2024
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Gentrification Score
31
Our index, 0 to 100. Higher means faster recent growth in incomes, home values, and college degrees.
Section 04

Race & ethnicity

2000
White, non-Hispanic93.7%(153,893)
Black2.1%(3,381)
Hispanic / Latino2.2%(3,593)
Asian0.4%(637)
Other0%
2024
White, non-Hispanic89.7%(143,658)
Black2.1%(3,395)
Hispanic / Latino3.7%(5,905)
Asian0.5%(785)
Other4%(6,478)
Diversity Score
24
+39%since 2009
from 17 in 2009
2009 – 2024
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Segregation Score
26
−34%since 2020
from 40 in 2020
Our index, 0 to 100. Higher means White and non-White residents are more separated across neighborhoods.
Section 04 · Origins

Detailed origins & ancestry

Hispanic origin
Mexican2.7%(4,333)
Puerto Rican0.3%(459)
Cuban0.2%(288)
Spaniard0.1%(190)
Dominican0%(38)
Honduran0%(18)
+ 2 more hispanic origin groups with data
Asian origin
Filipino0.2%(350)
Pakistani0.1%(172)
Chinese0.1%(131)
Korean0.1%(87)
Burmese0%(36)
Uzbek0%(13)
Pacific Islander origin
Ancestry
German25.6%(40,997)
Irish12.9%(20,608)
Polish11.4%(18,312)
English11.1%(17,855)
Italian6.3%(10,121)
French4.6%(7,434)
American4.3%(6,956)
Scottish3.1%(5,036)
French Canadian2.6%(4,240)
Dutch1.5%(2,423)
Belgian1.3%(2,056)
Swedish1%(1,577)
+ 39 more ancestry groups with data
Hungarian0.8%(1,313)
Scotch-Irish0.8%(1,292)
Canadian0.6%(1,033)
Arab0.6%(981)
Norwegian0.6%(944)
Finnish0.5%(867)
Russian0.5%(838)
Greek0.5%(732)
Slovak0.4%(619)
Ukrainian0.3%(530)
Czech0.3%(494)
Welsh0.3%(486)
Romanian0.3%(417)
Lebanese0.3%(405)
British0.2%(364)
Austrian0.2%(352)
Macedonian0.2%(254)
Armenian0.1%(235)
Iraqi0.1%(222)
Swiss0.1%(200)
Croatian0.1%(197)
West Indian0.1%(187)
Jamaican0.1%(187)
Danish0.1%(176)
Nigerian0.1%(173)
Lithuanian0.1%(167)
Egyptian0.1%(125)
Syrian0.1%(104)
Australian0.1%(94)
Serbian0%(70)
Bulgarian0%(31)
Latvian0%(25)
Slovene0%(19)
Ghanaian0%(18)
Brazilian0%(15)
Turkish0%(12)
Section 05

Education

Bachelor's degree or higher
20.3%
+7.7 ptssince 2000
from 12.6% in 2000
US average: 35.6%
High school or higher
92.0%
+9.2 ptssince 2000
from 82.8% in 2000
US average: 89.6%
Graduate degree
7.5%
+2.9 ptssince 2000
from 4.6% in 2000
US average: 14.0%
Section 06

Commute & transportation

Average commute
28.5 min
+28%since 2000
from 22.3 min in 2000
US average: 26.5
Drive alone to work
79.9%
−4.3 ptssince 2009
from 84.2% in 2009
US average: 68.9%
Carpooled to work
8.8%
−1.6 ptssince 2009
from 10.3% in 2009
US average: 8.5%
Public transit
1.1%
+0.7 ptssince 2009
from 0.4% in 2009
US average: 3.2%
Worked from home
7.7%
+5.0 ptssince 2009
from 2.7% in 2009
US average: 15.0%
Walked to work
1.1%
−0.4 ptssince 2009
from 1.5% in 2009
US average: 2.4%
Biked to work
0.4%
+0.2 ptssince 2009
from 0.2% in 2009
US average: 0.4%
No vehicle available
5.9%
+0.8 ptssince 2009
from 5.2% in 2009
US average: 8.3%
Section 07

Work & employment

Unemployment rate
5.7%
−8.2 ptssince 2011
from 14.0% in 2011
US average: 5.2%
Labor force participation
60.8%
−1.5 ptssince 2011
from 62.3% in 2011
US average: 63.5%
Women 20-64 in the labor force
72.4%
+2.1 ptssince 2020
from 70.3% in 2020
US average: 74.6%
Self-employed
11.4%
+1.0 ptssince 2009
from 10.4% in 2009
US average: 13.1%
Management & professional
31.9%
+6.2 ptssince 2009
from 25.8% in 2009
US average: 42.5%
Section 08

People & community

Male
50.1%
+0.6 ptssince 2009
from 49.5% in 2009
Female
49.9%
−0.6 ptssince 2009
from 50.5% in 2009
Foreign born
2.0%
−0.3 ptssince 2009
from 2.3% in 2009
US average: 14.1%
Veterans
7.1%
−4.0 ptssince 2009
from 11.0% in 2009
US average: 6.2%
With a disability
16.9%
+1.4 ptssince 2012
from 15.5% in 2012
US average: 13.3%
Uninsured
4.9%
−6.5 ptssince 2013
from 11.4% in 2013
US average: 8.4%
Broadband at home
90.9%
+13.3 ptssince 2017
from 77.6% in 2017
US average: 91.0%
Computer in household
94.9%
+4.2 ptssince 2020
from 90.7% in 2020
US average: 95.5%
Same house as last year
90.5%
+2.6 ptssince 2020
from 87.9% in 2020
US average: 87.7%
English only at home
97.5%
+1.0 ptssince 2016
from 96.5% in 2016
US average: 77.7%
Spanish at home
1.1%
−0.5 ptssince 2016
from 1.6% in 2016
US average: 13.6%
Marital status
Men 15+
Never married31.4%(20,959)
Married53.5%(35,746)
Widowed3.1%(2,050)
Divorced12.1%(8,088)
Women 15+
Never married24.8%(16,701)
Married52.9%(35,584)
Widowed9.7%(6,538)
Divorced12.6%(8,461)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09

Health coverage

Uninsured
4.9%
−6.5 ptssince 2013
from 11.4% in 2013
US average: 8.4%
Employer-based
59.7%
−0.4 ptssince 2020
from 60.1% in 2020
US average: 54.8%
Direct-purchase
14.0%
+0.2 ptssince 2020
from 13.8% in 2020
US average: 13.8%
Medicare
22.7%
+1.2 ptssince 2020
from 21.5% in 2020
US average: 18.4%
Medicaid
22.5%
−0.7 ptssince 2020
from 23.2% in 2020
US average: 20.9%
VA health care
2.3%
−0.5 ptssince 2020
from 2.8% in 2020
US average: 2.2%
Any private
71.3%
Unchangedsince 2020
from 71.3% in 2020
US average: 67.1%
Any public
42.1%
+0.2 ptssince 2020
from 41.9% in 2020
US average: 36.7%

Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.

Section 09 · Service history

Veterans

Veterans by period of service, 2024
Gulf War (2001 or later)14.7%(1,323)
US avg: 26.4%
Gulf War (1990s)17.6%(1,583)
US avg: 24.3%
Vietnam era38.7%(3,485)
US avg: 33.1%
Korean War5.2%(466)
US avg: 4.5%
World War II2%(182)
US avg: 1%

Share of the 9,016 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.

BAR + DOT: THIS PLACE · TICK: US AVERAGE
Drill deeper

Places similar to St. Clair County

Kings County
Pop 154,327
Mesa County
Pop 162,845
Johnson County
Pop 160,044
Indian River County
Pop 172,799
Places similar to St. Clair County
Head to head

Compare St. Clair County to nearby counties

ST. CLAIR COUNTY VS
Macomb County
Income$77,837+9%
Home value$243,900+9%
Population886,221+452%
SEE FULL COMPARISON →
ST. CLAIR COUNTY VS
Lapeer County
Income$77,306+8%
Home value$239,000+6%
Population89,516−44%
SEE FULL COMPARISON →
ST. CLAIR COUNTY VS
Sanilac County
Income$58,863−17%
Home value$168,300−25%
Population40,083−75%
SEE FULL COMPARISON →
ST. CLAIR COUNTY VS
Oakland County
Income$97,760+37%
Home value$343,600+53%
Population1,288,337+703%
SEE FULL COMPARISON →
Frequently asked

How many people live in St. Clair County, Michigan?

St. Clair County, Michigan has about 160,221 residents according to the 2024 American Community Survey.

What is the median household income in St. Clair County, Michigan?

The typical household in St. Clair County, Michigan earns about $71,270 a year. Half of households make more than that, and half make less.

Is St. Clair County, Michigan expensive?

In St. Clair County, Michigan, the median home is worth about $224,600, and the typical rent is about $1,029 a month.

How educated are people in St. Clair County, Michigan?

About 20.3% of adults age 25 and over in St. Clair County, Michigan hold a bachelor's degree or higher.

What is the poverty rate in St. Clair County, Michigan?

About 11.3% of people in St. Clair County, Michigan live below the federal poverty line.

Has St. Clair County, Michigan grown since 1990?

Yes, St. Clair County, Michigan has grown since 1990. The population has added about 14,614 residents, a change of about 10 percent over that period.

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

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