United States › Michigan › St. Clair County COUNTY · 1990 CENSUS
St. Clair County Michigan · 145,607 residents · 721 sq mi
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The short version
St. Clair County is home to 145,607 people in Michigan. Owners hold 76% of the housing stock. About 11% of adults have finished a four-year degree. The typical home is worth $59,200. The population has fallen 11% since 2000. Households earn $30,692 at the median, near the US median.
At a glance
Average income
near the US median
US median: $30,130
Mid-age
median age 32.9
US median: 33.0
Less educated
11% hold a bachelor's degree
US average: 20%
More affordable
home values down 36%, inflation adjusted
US median home: $93,722
Section 01
Population & growth vs 36.4 in 2000
US average: 33.0
Population, 1990 – 2024
143K 150K 157K 165K 172K 1990 2000 2010 2020 2024 St. Clair County Age distribution, 1990
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02
Income & economy $30,692
−13%inflation adjusted, since 2000
vs $46,313 in 2000
US average: $30,130
vs $21,582 in 2000
US average: $14,340
vs 7.8% in 2000
US average: 13.2%
$59,200
−36%inflation adjusted, since 2000
vs $122,700 in 2000
US average: $93,722
$409
Unchangedinflation adjusted, since 2000
vs $537 in 2000
US average: $450
vs 79.6% in 2000
24.3% rent
Section 04
Race & ethnicity 2000
White, non-Hispanic 93.7%(153,893)
Hispanic / Latino 2.2%(3,593)
1990
White, non-Hispanic 96.5%(140,474)
Hispanic / Latino 1.5%(2,225)
No data for the years selected.
Section 04 · Origins
Detailed origins & ancestry Detailed origin tables are available for 2024; showing 2024 data.
Hispanic origin
+ 2 more hispanic origin groups with data Ancestry
+ 39 more ancestry groups with data vs 12.6% in 2000
US average: 20.3%
High school or higher
vs 82.8% in 2000
US average: 75.2%
vs 4.6% in 2000
US average: 7.1%
Section 06
Commute & transportation vs 22.3 min in 2000
US average: 21.9
Section 07
Work & employment No data for the years selected.
Section 08
People & community No data for the years selected.
Marital status (2024)
Men 15+
Never married 31.4%(20,959)
Women 15+
Never married 24.8%(16,701)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09
Health coverage Showing 2024 (the nearest year with coverage data).
from 11.4% in 2013
US average: 8.4%
from 60.1% in 2020
US average: 54.8%
Direct-purchase
from 13.8% in 2020
US average: 13.8%
from 21.5% in 2020
US average: 18.4%
from 23.2% in 2020
US average: 20.9%
VA health care
from 2.8% in 2020
US average: 2.2%
Any private
from 71.3% in 2020
US average: 67.1%
Any public
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)
Gulf War (1990s) 17.6%(1,583)
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 Head to head
Compare St. Clair County to nearby counties ST. CLAIR COUNTY VS
Macomb County
Income $77,837 +154%
Home value $243,900 +312%
Population 886,221 +452%
SEE FULL COMPARISON →
ST. CLAIR COUNTY VS
Lapeer County
Income $77,306 +152%
Home value $239,000 +304%
Population 89,516 −44%
SEE FULL COMPARISON →
ST. CLAIR COUNTY VS
Sanilac County
Income $58,863 +92%
Home value $168,300 +184%
Population 40,083 −75%
SEE FULL COMPARISON →
ST. CLAIR COUNTY VS
Oakland County
Income $97,760 +219%
Home value $343,600 +480%
Population 1,288,337 +703%
SEE FULL COMPARISON →
Frequently asked
How many people live in St. Clair County, Michigan? St. Clair County, Michigan has about 145,607 residents according to the 1990 Census.
What is the median household income in St. Clair County, Michigan? The typical household in St. Clair County, Michigan earns about $30,692 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 $59,200, and the typical rent is about $409 a month.
How educated are people in St. Clair County, Michigan? About 10.7% 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 10.9% of people in St. Clair County, Michigan live below the federal poverty line.
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