COUNTY · 2020 ACS
St. Clair County
Michigan · 160,383 residents · 721 sq mi
Time machine
VIEWING
COMPARE TO
Part of the Detroit metro area
The short version
With 160,383 people, St. Clair County is a county in Michigan. The median age is 44.5, about 6 years above the US median. Four-year degrees are less common here than nationally, at 19% of adults. 77% of homes are owner-occupied. The foreign-born share is 2%. The typical home is worth $162,300.
At a glance
Lower income
below the US median
US median: $66,278
Older
median age 44.5
US median: 38.8
Less educated
19% hold a bachelor's degree
US average: 33%
More affordable
home values down 12%, inflation adjusted
US median home: $265,253
Section 01
Population & growth
Land area
721 sq mi
Population, 1990 – 2024
2024160K
Age distribution, 2020
Under 54.9%(7,920)
5 to 95.4%(8,660)
10 to 146.2%(9,867)
15 to 196.5%(10,383)
20 to 245.5%(8,856)
25 to 3411%(17,701)
35 to 4411.1%(17,759)
45 to 5413.6%(21,776)
55 to 6416.2%(26,011)
65 to 7411.9%(19,074)
75 to 845.7%(9,112)
85 and over2%(3,264)
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02
Income & economy
$58,722
−16%inflation adjusted, since 2000
from $46,313 in 2000
US average: $66,278
1990 – 2024
Households earning $100K+
38.9%
+9.5 ptssince 2009
from 29.5% in 2009
US average: 43.9%
Workforce by industry, 2020
Retail trade22.3%
Information11.5%
Wholesale trade8.2%
Finance & insurance5.3%
Professional, scientific, technical3.8%
Other services3.3%
Public administration2.1%
Transportation & warehousing1.7%
Education & health services1.5%
Arts, entertainment, food1.2%
Agriculture, forestry, fishing1%
Construction0.8%
Manufacturing0.1%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 03
Housing
$162,300
−12%inflation adjusted, since 2000
from $122,700 in 2000
US average: $265,253
1990 – 2024
2.8
−10%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.
Section 04
Race & ethnicity
2000
White, non-Hispanic93.7%(153,893)
Black2.1%(3,381)
Hispanic / Latino2.2%(3,593)
Asian0.4%(637)
Other0%
2020
White, non-Hispanic88.8%(142,396)
Black2.4%(3,773)
Hispanic / Latino3.4%(5,505)
Asian0.5%(809)
Other2.9%(4,630)
40
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
Mexican2.6%(4,102)
Puerto Rican0.2%(317)
Cuban0.1%(211)
South American0.1%(115)
Spaniard0.1%(104)
Colombian0.1%(101)
Central American0.1%(81)
Guatemalan0%(29)
Honduran0%(26)
Salvadoran0%(21)
Ecuadorian0%(14)
Nicaraguan0%(5)
+ 1 more hispanic origin group with data
Dominican0%(4)
Asian origin
Korean0.1%(170)
Asian Indian0.1%(129)
Chinese0.1%(109)
Filipino0%(75)
Burmese0%(54)
Bangladeshi0%(26)
Vietnamese0%(17)
Hmong0%(13)
Japanese0%(10)
Thai0%(5)
Ancestry
German27.3%(43,434)
Irish12.9%(20,477)
Polish11.6%(18,483)
English9.6%(15,256)
French6.4%(10,262)
American6%(9,538)
Italian6%(9,491)
Scottish3.2%(5,020)
French Canadian3%(4,726)
Dutch1.8%(2,908)
Belgian1.6%(2,545)
Swedish1.1%(1,763)
+ 42 more ancestry groups with data
Hungarian1%(1,572)
Scotch-Irish0.9%(1,477)
Canadian0.9%(1,406)
Norwegian0.6%(992)
Russian0.6%(988)
British0.5%(737)
Welsh0.4%(692)
Greek0.4%(689)
Lebanese0.4%(645)
Finnish0.4%(615)
Romanian0.4%(582)
Slovak0.3%(528)
Czech0.3%(519)
Ukrainian0.3%(470)
Danish0.3%(437)
Subsaharan African0.3%(437)
Austrian0.2%(373)
Lithuanian0.2%(311)
Macedonian0.2%(290)
Serbian0.1%(159)
Croatian0.1%(158)
Swiss0.1%(135)
Nigerian0.1%(131)
Australian0.1%(116)
Armenian0.1%(107)
West Indian0.1%(85)
Syrian0%(72)
Portuguese0%(59)
Palestinian0%(43)
Trinidadian & Tobagonian0%(37)
Turkish0%(35)
Jamaican0%(34)
Egyptian0%(31)
Arab0%(24)
Iraqi0%(22)
Iranian0%(21)
Slovene0%(19)
Ghanaian0%(18)
Bulgarian0%(14)
Haitian0%(9)
Barbadian0%(5)
Brazilian0%(1)
Section 05
Education
High school or higher
91.4%
+8.6 ptssince 2000
from 82.8% in 2000
US average: 88.5%
Section 06
Commute & transportation
Section 07
Work & employment
Women 20-64 in the labor force
70.3%
US average: 73.3%
Section 08
People & community
Computer in household
90.7%
US average: 91.9%
Marital status (2024)
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
Direct-purchase
13.8%
US average: 13.7%
VA health care
2.8%
US average: 2.3%
Any private
71.3%
US average: 68.1%
Any public
41.9%
US average: 35.2%
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, 2020
Gulf War (2001 or later)14.2%(1,536)
Gulf War (1990s)13.9%(1,501)
Vietnam era38.8%(4,188)
Korean War8.2%(883)
World War II4.1%(437)
Share of the 10,781 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 CountyHead to head
Compare St. Clair County to nearby counties
ST. CLAIR COUNTY VS
Macomb County
Income$77,837+33%
Home value$243,900+50%
Population886,221+452%
SEE FULL COMPARISON →
ST. CLAIR COUNTY VS
Lapeer County
Income$77,306+32%
Home value$239,000+47%
Population89,516−44%
SEE FULL COMPARISON →
ST. CLAIR COUNTY VS
Sanilac County
Income$58,863same
Home value$168,300+4%
Population40,083−75%
SEE FULL COMPARISON →
ST. CLAIR COUNTY VS
Oakland County
Income$97,760+66%
Home value$343,600+112%
Population1,288,337+703%
SEE FULL COMPARISON →
Frequently asked
How many people live in St. Clair County, Michigan?
St. Clair County, Michigan has about 160,383 residents according to the 2020 American Community Survey.
What is the median household income in St. Clair County, Michigan?
The typical household in St. Clair County, Michigan earns about $58,722 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 $162,300, and the typical rent is about $840 a month.
How educated are people in St. Clair County, Michigan?
About 19.1% 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 12.4% 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 14,776 residents, a change of about 10 percent over that period.
Keep going
Explore from here
51 census tracts (top 20 by population)
Census Tract 6350Census Tract 6304Census Tract 6346Census Tract 6420Census Tract 6572Census Tract 6551Census Tract 6200Census Tract 6360Census Tract 6516Census Tract 6460Census Tract 6490Census Tract 6440Census Tract 6320Census Tract 6501Census Tract 6341Census Tract 6372Census Tract 6371Census Tract 6430Census Tract 6220Census Tract 628021 ZIP codes
ZIP 48060ZIP 48059ZIP 48079ZIP 48001ZIP 48040ZIP 48074ZIP 48039ZIP 48054ZIP 48049ZIP 48097ZIP 48023ZIP 48041ZIP 48014ZIP 48063ZIP 48064ZIP 48006ZIP 48027ZIP 48002ZIP 48022ZIP 48032ZIP 48028Up the hierarchy
All counties in MichiganDATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024