St. Clair County, Michigan

11 cities & places have their primary county here.

Population: 160,089
Median household income: $69,349
Median home value: $213,900

Home to 160,089 residents, St. Clair County is one of Michigan's counties. 11 cities and places have their primary county here. At $69,349, its median household income sits in line with Michigan's $71,149.

Between 2019 and 2023, St. Clair County's population held roughly steady from 159,247 to 160,089, while its median household income rose 21.8% from $56,951 to $69,349.

Households average 2.38 people. The median gross rent is $999.

Demographics

ACS 2019–2023

Population: 160,089
Median age: 44.3 yrs
Median household income: $69,349
Median home value: $213,900
Median gross rent: $999
Housing units: 72,467
Homeownership rate: 80.5%
Bachelor's degree or higher: 20.3%
Unemployment rate: 6.4%

Trends

ACS 5-year · 2019–2023

Population

159,247160,089

Median household income

$56,951$69,349

Median home value

$154,300$213,900

Median gross rent

$814$999

Year	Population	Median household income	Median home value	Median gross rent
2019	159,247	$56,951	$154,300	$814
2020	159,285	$58,722	$162,300	$840
2021	160,067	$62,847	$170,200	$893
2022	160,257	$66,887	$197,300	$982
2023	160,089	$69,349	$213,900	$999

Each year is a US Census Bureau ACS 5-year estimate ending that year.

Age distribution

Under 54.9%

5 to 1715.6%

18 to 247.6%

25 to 3411.4%

35 to 4411.3%

45 to 5413.4%

55 to 6416.0%

65 to 7412.2%

75 and over7.6%

	Count	Share
Under 5	7,837	4.9%
5 to 17	25,003	15.6%
18 to 24	12,188	7.6%
25 to 34	18,178	11.4%
35 to 44	18,132	11.3%
45 to 54	21,454	13.4%
55 to 64	25,653	16.0%
65 to 74	19,512	12.2%
75 and over	12,132	7.6%

Race & ethnicity

	Count	Share
White (non-Hispanic)	144,094	90.0%
Black or African American	3,588	2.2%
American Indian & Alaska Native	168	0.1%
Asian	752	0.5%
Native Hawaiian & Pacific Islander	7	0.0%
Some other race	464	0.3%
Two or more races	5,263	3.3%
Hispanic or Latino (any race)	5,753	3.6%

Educational attainment (age 25+)

No high school diploma7.9%

High school graduate33.2%

Some college or associate's38.6%

Bachelor's degree12.8%

Graduate or professional degree7.5%

	Count	Share
No high school diploma	9,099	7.9%
High school graduate	38,182	33.2%
Some college or associate's	44,393	38.6%
Bachelor's degree	14,712	12.8%
Graduate or professional degree	8,675	7.5%

Commute to work

Mean travel time to work: 29 min

Drove alone80.5%

Carpooled9.3%

Public transit0.8%

Walked1.3%

Bicycle0.3%

Worked from home7.1%

Other means0.7%

How workers get to work

	Count	Share
Drove alone	58,486	80.5%
Carpooled	6,777	9.3%
Public transit	594	0.8%
Walked	943	1.3%
Bicycle	240	0.3%
Worked from home	5,169	7.1%
Other means	489	0.7%

Travel time

	Count	Share
Under 15 min	20,465	30.3%
15 to 29 min	18,861	27.9%
30 to 44 min	12,208	18.1%
45 to 59 min	6,938	10.3%
60+ min	9,057	13.4%

Households

Average household size: 2.38
Poverty rate: 11.0% (17,388 of 158,248)

	Count	Share
Family households	44,530	66.8%
Nonfamily households	22,088	33.2%

Housing

Median year structure built: 1975

Occupancy

	Count	Share
Occupied	66,618	91.9%
Vacant	5,849	8.1%

Tenure (of occupied units)

	Count	Share
Owner-occupied	53,655	80.5%
Renter-occupied	12,963	19.5%

1-unit, detached79.1%

1-unit, attached2.8%

2 to 4 units4.9%

5 to 19 units3.8%

20 or more units2.9%

Mobile home & other6.4%

Units in structure

	Count	Share
1-unit, detached	57,326	79.1%
1-unit, attached	2,046	2.8%
2 to 4 units	3,563	4.9%
5 to 19 units	2,763	3.8%
20 or more units	2,132	2.9%
Mobile home & other	4,637	6.4%

Geography

County GEOID: 26147
State: Michigan
Land area: 722 sq mi
Water area: 115 sq mi
Center point: 42.9288, -82.6689