St. Joseph County, Michigan Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 33rd-largest in Michigan
The population of St. Joseph County, Michigan is 60,870 as of the 2023 American Community Survey, making it the 33rd-largest county in Michigan. The median household income is $64,707, the median home value is $167,600, and the median age is 39.8.
The population of St. Joseph County has declined 0.2% since 2010 (61,288 → 61,171), a -0.01% annualized rate.
60,870
Population
-0.01%
Annual growth
122
People / sq mi
$64,707
Median Income
$167,600
Median Home Value
St. Joseph County covers 501 sq mi of land at 121.6 people per square mile.
About St. Joseph County, MI
St. Joseph County is defined demographically by education — 17.1% of adults hold a bachelor’s degree, below the national average. St. Joseph County is a county in Michigan with a population of 60,870. It ranks #33 among counties in Michigan by population.
Household earnings are middling, with a median of $64,707 — below the US median of $78,538. The poverty rate is 8.3%, below the national 12.4%. Median home value is $167,600, with typical rent around $825.
Degree attainment is on the lower side for US counties: 17.1% of adults hold a bachelor’s degree, below the national 35.0%. About 6.1% of the workforce is home-based, below the national 14.0%, and the average commute runs about 21 minutes each way.
St. Joseph County Population History (2010-2024)
The county of St. Joseph County had a population of 61,288 in 2010 and 61,171 in 2024, a -0.2% growth over 14 years. The peak was 61,288 in 2010. Average annual growth rate: -0.01%.
61,171
Population (2024)
61,288
Population (2010)
61,288
Peak (2010)
-0.01%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 61,288 |
| 2011 | 61,068 |
| 2012 | 60,987 |
| 2013 | 60,987 |
| 2014 | 61,014 |
| 2015 | 60,809 |
| 2016 | 60,761 |
| 2017 | 60,703 |
| 2018 | 60,808 |
| 2019 | 60,826 |
| 2020 | 60,942 |
| 2021 | 60,857 |
| 2022 | 60,814 |
| 2023 | 61,062 |
| 2024 | 61,171 |
Race & Ethnicity
| White | 87.2% |
| Black or African American | 2.2% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.8% |
| Two or More Races | 0.0% |
Age & Sex
39.8
Median Age
49.6%
Female
50.4%
Male
18.5%
Age 65+
Age Distribution
Children (under 15): 20.0% · Seniors (65+): 18.5%
Income & Poverty
| Median household income | $64,707$-6,442 vs state |
| Mean household income | $78,907 |
| Per-capita income | $31,170 |
| Poverty rate | 8.3%-0.5% vs state |
| Unemployment rate | 3.2% |
| Employment-to-population | 57.9% |
Top Industries by Employment
The largest employment sector in St. Joseph County is manufacturing, accounting for 37.5% of workers.
How residents commute
0.1%
Drive alone
2.0%
Carpool
74.2%
Public transit
6.1%
Work from home
21.0 min
Avg commute
Housing
$167,600$-50,000 vs state
Median home value
$825
Median rent
75.2%
Homeownership rate
27,248
Total housing units
86.6%
Occupied
13.4%
Vacant
24.8%
Renter-occupied
Social & access
90.4%
With health insurance
91.0%
With broadband internet
28.1%
Foreign-born
7.1%
Veterans (18+)
16.8%
With a disability
87.7%
Speak language other than English at home
Education
86.3%
High School+
17.1%
Bachelor's+
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Part of Michigan
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County rankings
Frequently Asked Questions
St. Joseph County, Michigan has a population of 60,870 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 33rd-largest county in Michigan. Population density is 122 people per square mile.
The population of St. Joseph County has declined 0.2% since 2010 (61,288 → 61,171), a -0.01% annualized rate.
The median household income in St. Joseph County, Michigan is $64,707, with mean (average) household income of $78,907 and per-capita income of $31,170. 8.3% of residents live below the federal poverty level.
In St. Joseph County, the largest racial and ethnic groups are White (87.2%), Black or African American (2.2%), Hispanic or Latino (1.8%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in St. Joseph County, Michigan is 39.8 years. Residents are 49.6% female and 50.4% male.
The median home value in St. Joseph County is $167,600 and median monthly rent is $825. 75.2% of occupied housing units are owner-occupied. The county has 27,248 total housing units, 13.4% of which are vacant.
The largest employment sector in St. Joseph County, Michigan is manufacturing, employing 37.5% of workers. The unemployment rate is 3.2%.
Detroit is among the largest cities associated with St. Joseph County, Michigan, with a population of 636,644.
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Population, race, income, age, and trends across Michigan
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.