Calhoun County vs St. Clair County

A side-by-side comparison of Calhoun County and St. Clair County: population, income, housing, and more.

Calhoun County and St. Clair County are counties in Michigan. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

St. Clair County has the higher population (160,089 vs 133,846 in Calhoun County). St. Clair County has the higher median household income ($69,349 vs $60,385 in Calhoun County). St. Clair County has the higher median home value ($213,900 vs $151,500 in Calhoun County).

Population, income & housing

	Calhoun County	St. Clair County
Population	133,846	160,089
Median age	40.2 yrs	44.3 yrs
Median household income	$60,385	$69,349
Median home value	$151,500	$213,900
Median gross rent	$937	$999
Housing units	59,626	72,467
Homeownership rate	72.4%	80.5%
Bachelor's degree or higher	22.2%	20.3%
Unemployment rate	6.8%	6.4%

Trends (ACS 5-year, 2019–2023)

	Calhoun County	St. Clair County
Population	134,212 → 133,846 (-0.3%)	159,247 → 160,089 (+0.5%)
Median household income	$48,607 → $60,385 (+24.2%)	$56,951 → $69,349 (+21.8%)
Median home value	$110,000 → $151,500 (+37.7%)	$154,300 → $213,900 (+38.6%)
Median gross rent	$751 → $937 (+24.8%)	$814 → $999 (+22.7%)

Calhoun County

Population

134,212133,846

Median household income

$48,607$60,385

Median home value

$110,000$151,500

Median gross rent

$751$937

St. Clair County

Population

159,247160,089

Median household income

$56,951$69,349

Median home value

$154,300$213,900

Median gross rent

$814$999

Age & race/ethnicity

Age distribution (share)

	Calhoun County	St. Clair County
Under 5	5.8%	4.9%
5 to 17	17.2%	15.6%
18 to 24	8.5%	7.6%
25 to 34	12.4%	11.4%
35 to 44	12.1%	11.3%
45 to 54	12.2%	13.4%
55 to 64	13.6%	16.0%
65 to 74	11.0%	12.2%
75 and over	7.2%	7.6%

Race & ethnicity (share)

	Calhoun County	St. Clair County
White (non-Hispanic)	75.7%	90.0%
Black or African American	9.9%	2.2%
American Indian & Alaska Native	0.3%	0.1%
Asian	2.6%	0.5%
Native Hawaiian & Pacific Islander	0.0%	0.0%
Some other race	0.4%	0.3%
Two or more races	5.4%	3.3%
Hispanic or Latino	5.7%	3.6%

Educational attainment (age 25+)

Share of adults 25+

	Calhoun County	St. Clair County
No high school diploma	9.1%	7.9%
High school graduate	35.1%	33.2%
Some college or associate's	33.6%	38.6%
Bachelor's degree	14.5%	12.8%
Graduate or professional degree	7.7%	7.5%

Commute to work

How workers get to work (share)

	Calhoun County	St. Clair County
Drove alone	80.4%	80.5%
Carpooled	8.4%	9.3%
Public transit	0.6%	0.8%
Walked	2.1%	1.3%
Bicycle	0.4%	0.3%
Worked from home	7.2%	7.1%
Other means	1.0%	0.7%

Housing

Units in structure (share)

	Calhoun County	St. Clair County
1-unit, detached	73.6%	79.1%
1-unit, attached	0.9%	2.8%
2 to 4 units	4.9%	4.9%
5 to 19 units	6.3%	3.8%
20 or more units	8.6%	2.9%
Mobile home & other	5.8%	6.4%

Poverty & households

	Calhoun County	St. Clair County
Poverty rate	14.2%	11.0%
Average household size	2.44	2.38
Mean commute (minutes)	21	29
Median year structure built	1961	1975