St. Clair County Summary

Life in St. Clair County research summary. HomeSnacks has been researching the quality of life in St. Clair County over the past eight years using Census data, FBI crime data, cost of living data, and other primary sources. Based on the most recently available data, we found the following about life in St. Clair County:

  • The population in St. Clair County is 160,257.

  • The median home value in St. Clair County is $229,439.

  • The median income in St. Clair County is $66,887.

  • The median rent in St. Clair County is $982.

  • The unemployment rate in St. Clair County is 6.7%.

  • The poverty rate in St. Clair County is 11.9%.

  • The average high in St. Clair County is 61.4° and there are 78.6 inches of rainfall annually.

Cities & Towns in St. Clair County

List Of Cities & Towns in St. Clair County

Port Huron, MI Population 28,881

Marysville, MI Population 9,973

Richmond, MI Population 5,852

St. Clair, MI Population 5,496

Pearl Beach, MI Population 5,159

Algonac, MI Population 4,167

Marine City, MI Population 4,068

Yale, MI Population 2,050

Capac, MI Population 1,920

Memphis, MI Population 1,150

Emmett, MI Population 244

Map Of St. Clair County

St. Clair County, MI Weather

  • The average high in St. Clair County is 61.4°.

  • There are 72.94 nice days each year.

  • Expect an average of 78.6 inches of rain each year with 13.2 inches of snow.

  • There is an average of 4:16 hours of sun each day in St. Clair County.

StatSt. Clair County
Mean High61.4
Nice Days72.94
Rainfall78.6
Snowfall13.2
Sunny_hours4:16
61.4°
Average High
78.6
Inches of Rain

St. Clair County Photos

Algonac Mi
Source: Wikipedia User P199 | CC BY-SA 3.0
Marine City Mi
Source: Wikipedia User P199 | CC BY-SA 3.0
Downtown Marine City
Source: Wikipedia User Wystan | CC BY 2.0
Marysville
Source: Wikipedia User Mac1island | CC BY-SA 3.0
Mvpp
Source: Wikipedia User Michi906 | CC BY-SA 4.0
Porthuron
Source: Public Domain

St. Clair County Demographics

Population over time in St. Clair County

The current population in St. Clair County is 160,257. The population has increased 0.5% from 2019.

Year Population % Change
2022 160,067 0.5%
2021 159,285 0.0%
2020 159,247 -

Gender in St. Clair County

  • St. Clair County is 49.9% female with 79,984 female residents.

  • St. Clair County is 50.1% male with 80,272 male residents.

Female
49.9% (79,984)
Male
50.1% (80,272)
Gender St. Clair County MI USA
Female 49.9% 50.4% 50.4%
Male 50.1% 49.6% 49.6%

Race / Ethnicity in St. Clair County

St. Clair County is:

  • 90.3% White with 144,743 White residents.

  • 2.3% African American with 3,625 African American residents.

  • 0.1% American Indian with 181 American Indian residents.

  • 0.4% Asian with 692 Asian residents.

  • 0.0% Hawaiian with 22 Hawaiian residents.

  • 0.2% Other with 266 Other residents.

  • 3.1% Two Or More with 4,896 Two Or More residents.

  • 3.6% Hispanic with 5,832 Hispanic residents.

White
90.3% (144,743)
African American
2.3% (3,625)
American Indian
0.1% (181)
Asian
0.4% (692)
Hawaiian
0.0% (22)
Other
0.2% (266)
Two Or More
3.1% (4,896)
Hispanic
3.6% (5,832)

Table: St. Clair County By Race

Race St. Clair County MI USA
White 90.3% 73.5% 58.9%
African American 2.3% 13.4% 12.1%
American Indian 0.1% 0.3% 0.6%
Asian 0.4% 3.2% 5.7%
Hawaiian 0.0% 0.0% 0.2%
Other 0.2% 0.3% 0.4%
Two Or More 3.1% 3.7% 3.5%
Hispanic 3.6% 5.5% 18.7%

Household Income For St. Clair County, Michigan

  • 4.2% of households in St. Clair County earn Less than $10,000.

  • 4.2% of households in St. Clair County earn $10,000 to $14,999.

  • 7.3% of households in St. Clair County earn $15,000 to $24,999.

  • 8.4% of households in St. Clair County earn $25,000 to $34,999.

  • 13.2% of households in St. Clair County earn $35,000 to $49,999.

  • 17.5% of households in St. Clair County earn $50,000 to $74,999.

  • 14.9% of households in St. Clair County earn $75,000 to $99,999.

  • 16.6% of households in St. Clair County earn $100,000 to $149,999.

  • 7.7% of households in St. Clair County earn $150,000 to $199,999.

  • 6.0% of households in St. Clair County earn $200,000 or more.

Less than $10,000
4.2% (6,676)
$10,000 to $14,999
4.2% (6,676)
$15,000 to $24,999
7.3% (11,727)
$25,000 to $34,999
8.4% (13,534)
$35,000 to $49,999
13.2% (21,138)
$50,000 to $74,999
17.5% (28,122)
$75,000 to $99,999
14.9% (23,816)
$100,000 to $149,999
16.6% (26,619)
$150,000 to $199,999
7.7% (12,407)
$200,000 or more
6.0% (9,539)
Income St. Clair County MI USA
Less than $10,000 4.2% 5.0% 4.9%
$10,000 to $14,999 4.2% 4.1% 3.8%
$15,000 to $24,999 7.3% 7.5% 7.0%
$25,000 to $34,999 8.4% 8.2% 7.4%
$35,000 to $49,999 13.2% 12.1% 10.7%
$50,000 to $74,999 17.5% 17.2% 16.1%
$75,000 to $99,999 14.9% 13.4% 12.8%
$100,000 to $149,999 16.6% 16.5% 17.1%
$150,000 to $199,999 7.7% 7.8% 8.8%
$200,000 or more 6.0% 8.2% 11.4%

Highest level of educational attainment in St. Clair County for adults over 25

  • 4.0% of adults in St. Clair County completed < 9th grade.

  • 6.0% of adults in St. Clair County completed 9-12th grade.

  • 33.0% of adults in St. Clair County completed high school / ged.

  • 26.0% of adults in St. Clair County completed some college.

  • 12.0% of adults in St. Clair County completed associate's degree.

  • 12.0% of adults in St. Clair County completed bachelor's degree.

  • 6.0% of adults in St. Clair County completed master's degree.

  • 1.0% of adults in St. Clair County completed professional degree.

  • 0.0% of adults in St. Clair County completed doctorate degree.

< 9th Grade
3% (6,410)
9-12th Grade
6% (9,615)
High School / GED
33% (52,884)
Some College
26% (41,666)
Associate's Degree
12% (19,230)
Bachelor's Degree
12% (19,230)
Master's Degree
6% (9,615)
Professional Degree
1% (1,602)
Doctorate Degree
0% (0)
Education St. Clair County MI USA
< 9th Grade 3% 2% 3%
9-12th Grade 6% 6% 6%
High School / GED 33% 28% 26%
Some College 26% 23% 20%
Associate's Degree 12% 10% 9%
Bachelor's Degree 12% 19% 21%
Master's Degree 6% 9% 10%
Professional Degree 1% 2% 2%
Doctorate Degree 0% 1% 2%

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