Mason County, Michigan Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 49th-largest in Michigan
The population of Mason County, Michigan is 29,177 as of the 2023 American Community Survey, making it the 49th-largest county in Michigan. The median household income is $62,296, the median home value is $199,300, and the median age is 47.2.
The population of Mason County has grown 1.3% since 2010 (28,719 → 29,093), a +0.09% annualized rate.
29,177
Population
+0.09%
Annual growth
59
People / sq mi
$62,296
Median Income
$199,300
Median Home Value
Mason County covers 495 sq mi of land at 58.9 people per square mile.
About Mason County, MI
Mason County is a county in Michigan with a population of 29,177. It ranks #49 among counties in Michigan by population. The median age is 47.2, older than the national median. The population is 50.3% male and 49.7% female.
The median household income in Mason County is $62,296, below the US median of $74,580. 9.5% of residents live below the federal poverty level. Home values sit at a median of $199,300, with monthly rent averaging $840. The homeownership rate of 78.1% is higher than the national rate of 64.8%.
Educational attainment in Mason County reflects 25.0% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 9.2% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 19.9 minutes each way.
Mason County Population History (2010-2024)
The county of Mason County had a population of 28,719 in 2010 and 29,093 in 2024, a 1.3% growth over 14 years. The peak was 29,357 in 2022. Average annual growth rate: 0.09%.
29,093
Population (2024)
28,719
Population (2010)
29,357
Peak (2022)
0.09%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 28,719 |
| 2011 | 28,649 |
| 2012 | 28,667 |
| 2013 | 28,680 |
| 2014 | 28,748 |
| 2015 | 28,754 |
| 2016 | 28,846 |
| 2017 | 29,025 |
| 2018 | 29,121 |
| 2019 | 29,154 |
| 2020 | 29,037 |
| 2021 | 29,350 |
| 2022 | 29,357 |
| 2023 | 29,199 |
| 2024 | 29,093 |
Race & Ethnicity
| White | 92.3% |
| Black or African American | 1.1% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.8% |
| Two or More Races | 0.0% |
Age & Sex
47.2
Median Age
49.7%
Female
50.3%
Male
25.6%
Age 65+
Age Distribution
Children (under 15): 16.3% · Seniors (65+): 25.6%
Income & Poverty
| Median household income | $62,296$-8,853 vs state |
| Mean household income | $80,155 |
| Per-capita income | $34,751 |
| Poverty rate | 9.5%+0.7% vs state |
| Unemployment rate | 2.5% |
| Employment-to-population | 51.7% |
Top Industries by Employment
The largest employment sector in Mason County is professional & business services, accounting for 21.4% of workers.
How residents commute
0.4%
Drive alone
2.1%
Carpool
75.7%
Public transit
9.2%
Work from home
19.9 min
Avg commute
Housing
$199,300$-18,300 vs state
Median home value
$840
Median rent
78.1%
Homeownership rate
17,499
Total housing units
71.0%
Occupied
29.0%
Vacant
21.9%
Renter-occupied
Social & access
93.9%
With health insurance
93.4%
With broadband internet
18.6%
Foreign-born
8.4%
Veterans (18+)
16.7%
With a disability
97.2%
Speak language other than English at home
Education
93.4%
High School+
25.0%
Bachelor's+
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Part of Michigan
Metro areas in Michigan
County rankings
Frequently Asked Questions
Mason County, Michigan has a population of 29,177 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 49th-largest county in Michigan. Population density is 59 people per square mile.
The population of Mason County has grown 1.3% since 2010 (28,719 → 29,093), a +0.09% annualized rate.
The median household income in Mason County, Michigan is $62,296, with mean (average) household income of $80,155 and per-capita income of $34,751. 9.5% of residents live below the federal poverty level.
In Mason County, the largest racial and ethnic groups are White (92.3%), Hispanic or Latino (1.8%), Black or African American (1.1%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Mason County, Michigan is 47.2 years. Residents are 49.7% female and 50.3% male.
The median home value in Mason County is $199,300 and median monthly rent is $840. 78.1% of occupied housing units are owner-occupied. The county has 17,499 total housing units, 29.0% of which are vacant.
The largest employment sector in Mason County, Michigan is professional, scientific, and management services, employing 21.4% of workers. The unemployment rate is 2.5%.
Detroit is among the largest cities associated with Mason County, Michigan, with a population of 636,644.
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Statewide data for Michigan
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.