CensusEasy
COUNTY · 2000 CENSUS

St. Clair County

Michigan · 164,235 residents · 721.488 sq mi
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The short version

St. Clair County has roughly average household income, with a median household income of $46,313. Population has held roughly steady since 1990. 13% of adults hold a bachelor's degree or higher, below the national rate of 24%. Median home value has more than doubled since 1990, reaching $122,700.

At a glance
Wealthier
above the US median
US median: $42,589
Mid-age
median age 36.4
US median: 35.2
Less educated
13% hold a bachelor's degree
US average: 24%
Less affordable
home values up 57%, inflation adjusted
US median home: $120,530
Section 01

Population & growth

Total population
164,235
+13%since 1990
from 145,607 in 1990
1990 – 2025
Population density
228 / sq mi
+13%since 1990
from 202 / sq mi in 1990
US average: 242
Median age
36.4
+11%since 1990
from 32.9 in 1990
US average: 35.2
Population, 1990 – 2024
143K150K157K165K172K1990201020202024St. Clair County
2024160K
1990201020202024
Section 02

Income & economy

Median household income
$46,313
+15%inflation adjusted, since 1990
from $30,692 in 1990
US average: $42,589
1990 – 2024
Per capita income
$21,582
+63%since 1990
from $13,257 in 1990
US average: $21,522
Poverty rate
7.8%
−3.1 ptssince 1990
from 10.9% in 1990
US average: 12.4%
Section 03

Housing

Median home value
$122,700
+57%inflation adjusted, since 1990
from $59,200 in 1990
US average: $120,530
1990 – 2024
Median gross rent
$537
Unchangedinflation adjusted, since 1990
from $409 in 1990
US average: $602
Owner-occupied
79.6%
+3.9 ptssince 1990
from 75.7% in 1990
20.4% rent
Afford Score
2.6
+37%since 1990
from 1.9 in 1990
1990 – 2024
RELATED:See current rent listings in St. Clair County on RentDataNow
Section 04

Race & ethnicity

1990
White, non-Hispanic96.5%(140,474)
Black2%(2,934)
Hispanic / Latino1.5%(2,225)
Asian0.3%(465)
Diversity Score12%(17,527)
2000
White, non-Hispanic93.7%(153,893)
Black2.1%(3,381)
Hispanic / Latino2.2%(3,593)
Asian0.4%(637)
Diversity Score11.4%(18,699)
Diversity Score
11
−5%since 1990
from 12 in 1990
1990 – 2024
Section 05

Education

Bachelor's degree or higher
12.6%
+1.9 ptssince 1990
from 10.7% in 1990
US average: 24.4%
High school or higher
82.8%
+8.0 ptssince 1990
from 74.8% in 1990
US average: 80.3%
Graduate degree
4.6%
+0.5 ptssince 1990
from 4.1% in 1990
US average: 8.8%
Section 06

Commute & transportation

Average commute
22.3 min
−5%since 1990
from 23.5 min in 1990
US average: 17.6
Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

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+68%
Home value$243,900+99%
Population886,221+452%
SEE FULL COMPARISON →
ST. CLAIR COUNTY VS
Lapeer County
Income$77,306+67%
Home value$239,000+95%
Population89,516−44%
SEE FULL COMPARISON →
ST. CLAIR COUNTY VS
Sanilac County
Income$58,863+27%
Home value$168,300+37%
Population40,083−75%
SEE FULL COMPARISON →
ST. CLAIR COUNTY VS
Oakland County
Income$97,760+111%
Home value$343,600+180%
Population1,288,337+703%
SEE FULL COMPARISON →
Frequently asked

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

St. Clair County, Michigan has about 164,235 residents according to the 2000 Census.

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

The typical household in St. Clair County, Michigan earns about $46,313 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 $122,700, and the typical rent is about $537 a month.

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

About 12.6% 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 7.8% 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 18,628 residents, a change of about 13 percent over that period.

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

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