Monroe County, Michigan Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 15th-largest in Michigan
The population of Monroe County, Michigan is 155,001 as of the 2023 American Community Survey, making it the 15th-largest county in Michigan. The median household income is $75,272, the median home value is $215,700, and the median age is 42.6.
The population of Monroe County has grown 2.7% since 2010 (151,936 → 156,045), a +0.19% annualized rate.
155,001
Population
+0.19%
Annual growth
282
People / sq mi
$75,272
Median Income
$215,700
Median Home Value
Monroe County covers 549 sq mi of land at 282.1 people per square mile.
About Monroe County, MI
Monroe County is a county in Michigan with a population of 155,001. It ranks #15 among counties in Michigan by population. The median age is 42.6, older than the national median. The population is 49.9% male and 50.1% female.
The median household income in Monroe County is $75,272, near the US median of $74,580. 7.7% of residents live below the federal poverty level. Home values sit at a median of $215,700, with monthly rent averaging $1,017. The homeownership rate of 81.2% is higher than the national rate of 64.8%.
Educational attainment in Monroe County reflects 23.4% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 8.2% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 26.6 minutes each way.
Monroe County Population History (2010-2024)
The county of Monroe County had a population of 151,936 in 2010 and 156,045 in 2024, a 2.7% growth over 14 years. The peak was 156,045 in 2024. Average annual growth rate: 0.19%.
156,045
Population (2024)
151,936
Population (2010)
156,045
Peak (2024)
0.19%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 151,936 |
| 2011 | 151,511 |
| 2012 | 150,835 |
| 2013 | 150,193 |
| 2014 | 149,919 |
| 2015 | 149,439 |
| 2016 | 149,278 |
| 2017 | 149,523 |
| 2018 | 150,218 |
| 2019 | 150,412 |
| 2020 | 154,909 |
| 2021 | 155,569 |
| 2022 | 155,412 |
| 2023 | 155,590 |
| 2024 | 156,045 |
Race & Ethnicity
| White | 90.9% |
| Black or African American | 2.2% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.3% |
| Two or More Races | 0.0% |
Age & Sex
42.6
Median Age
50.1%
Female
49.9%
Male
19.3%
Age 65+
Age Distribution
Children (under 15): 17.1% · Seniors (65+): 19.3%
Income & Poverty
| Median household income | $75,272+$4,123 vs state |
| Mean household income | $96,199 |
| Per-capita income | $39,303 |
| Poverty rate | 7.7%-1.1% vs state |
| Unemployment rate | 3.0% |
| Employment-to-population | 56.6% |
Top Industries by Employment
The largest employment sector in Monroe County is professional & business services, accounting for 23.9% of workers.
How residents commute
0.2%
Drive alone
1.3%
Carpool
82.7%
Public transit
8.2%
Work from home
26.6 min
Avg commute
Housing
$215,700$-1,900 vs state
Median home value
$1,017
Median rent
81.2%
Homeownership rate
66,300
Total housing units
94.3%
Occupied
5.7%
Vacant
18.8%
Renter-occupied
Social & access
96.4%
With health insurance
94.2%
With broadband internet
35.3%
Foreign-born
7.3%
Veterans (18+)
14.7%
With a disability
96.3%
Speak language other than English at home
Education
91.8%
High School+
23.4%
Bachelor's+
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Part of Michigan
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County rankings
Frequently Asked Questions
Monroe County, Michigan has a population of 155,001 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 15th-largest county in Michigan. Population density is 282 people per square mile.
The population of Monroe County has grown 2.7% since 2010 (151,936 → 156,045), a +0.19% annualized rate.
The median household income in Monroe County, Michigan is $75,272, with mean (average) household income of $96,199 and per-capita income of $39,303. 7.7% of residents live below the federal poverty level.
In Monroe County, the largest racial and ethnic groups are White (90.9%), Black or African American (2.2%), Hispanic or Latino (1.3%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Monroe County, Michigan is 42.6 years. Residents are 50.1% female and 49.9% male.
The median home value in Monroe County is $215,700 and median monthly rent is $1,017. 81.2% of occupied housing units are owner-occupied. The county has 66,300 total housing units, 5.7% of which are vacant.
The largest employment sector in Monroe County, Michigan is professional, scientific, and management services, employing 23.9% of workers. The unemployment rate is 3.0%.
Detroit is among the largest cities associated with Monroe County, Michigan, with a population of 636,644.
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.