Genesee County, Michigan Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 5th-largest in Michigan
The population of Genesee County, Michigan is 404,087 as of the 2023 American Community Survey, making it the 5th-largest county in Michigan. The median household income is $60,673, the median home value is $172,900, and the median age is 40.6.
The population of Genesee County has declined 5.3% since 2010 (424,959 → 402,279), a -0.39% annualized rate.
404,087
Population
-0.39%
Annual growth
634
People / sq mi
$60,673
Median Income
$172,900
Median Home Value
Genesee County covers 637 sq mi of land at 634.4 people per square mile.
About Genesee County, MI
What distinguishes Genesee County is density: among the most densely settled of US counties, around 634 people per square mile. Genesee County is a county in Michigan with a population of 404,087. That makes it one of the ten largest counties in Michigan in the country, at #5 by population.
Median household income is $60,673, below the US median of $78,538. Poverty runs at 10.9%, below the national 12.4%. Homes carry a median value of $172,900, with typical rent around $936.
Degree attainment is mid-range for US counties: 22.8% of adults hold a four-year degree, below the national 35.0%. Around 9.2% of workers work from home, below the national 14.0%, and the average commute runs about 27 minutes each way.
That density explains much of the rest of the profile in Genesee County: denser places lean toward renting, shorter commutes by transit, and a younger working-age mix.
Genesee County Population History (2010-2024)
The county of Genesee County had a population of 424,959 in 2010 and 402,279 in 2024, a -5.3% growth over 14 years. The peak was 424,959 in 2010. Average annual growth rate: -0.39%.
402,279
Population (2024)
424,959
Population (2010)
424,959
Peak (2010)
-0.39%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 424,959 |
| 2011 | 422,062 |
| 2012 | 418,243 |
| 2013 | 415,713 |
| 2014 | 412,950 |
| 2015 | 410,574 |
| 2016 | 409,054 |
| 2017 | 407,673 |
| 2018 | 406,626 |
| 2019 | 405,702 |
| 2020 | 405,793 |
| 2021 | 404,713 |
| 2022 | 402,031 |
| 2023 | 401,711 |
| 2024 | 402,279 |
Race & Ethnicity
| White | 72.6% |
| Black or African American | 19.4% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.7% |
| Two or More Races | 0.0% |
Age & Sex
40.6
Median Age
51.5%
Female
48.5%
Male
18.3%
Age 65+
Age Distribution
Children (under 15): 18.2% · Seniors (65+): 18.3%
Income & Poverty
| Median household income | $60,673$-10,476 vs state |
| Mean household income | $82,790 |
| Per-capita income | $34,587 |
| Poverty rate | 10.9%+2.1% vs state |
| Unemployment rate | 4.8% |
| Employment-to-population | 53.4% |
Top Industries by Employment
The largest employment sector in Genesee County is professional & business services, accounting for 23.7% of workers.
How residents commute
1.1%
Drive alone
1.0%
Carpool
79.1%
Public transit
9.2%
Work from home
26.9 min
Avg commute
Housing
$172,900$-44,700 vs state
Median home value
$936
Median rent
70.8%
Homeownership rate
183,729
Total housing units
90.6%
Occupied
9.4%
Vacant
29.2%
Renter-occupied
Social & access
95.2%
With health insurance
93.8%
With broadband internet
13.4%
Foreign-born
6.8%
Veterans (18+)
17.8%
With a disability
96.0%
Speak language other than English at home
Education
90.9%
High School+
22.8%
Bachelor's+
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County rankings
Common questions about Genesee County, MI
Frequently Asked Questions
Genesee County, Michigan has a population of 404,087 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 5th-largest county in Michigan. Population density is 634 people per square mile.
The population of Genesee County has declined 5.3% since 2010 (424,959 → 402,279), a -0.39% annualized rate.
The median household income in Genesee County, Michigan is $60,673, with mean (average) household income of $82,790 and per-capita income of $34,587. 10.9% of residents live below the federal poverty level.
In Genesee County, the largest racial and ethnic groups are White (72.6%), Black or African American (19.4%), Hispanic or Latino (1.7%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Genesee County, Michigan is 40.6 years. Residents are 51.5% female and 48.5% male.
The median home value in Genesee County is $172,900 and median monthly rent is $936. 70.8% of occupied housing units are owner-occupied. The county has 183,729 total housing units, 9.4% of which are vacant.
The largest employment sector in Genesee County, Michigan is professional, scientific, and management services, employing 23.7% of workers. The unemployment rate is 4.8%.
Detroit is among the largest cities associated with Genesee County, Michigan, with a population of 636,644.
Genesee County, MI Climate
Genesee County, MI has an average annual temperature of 8.7°C (48°F) and receives about 763 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
8.7°C
Avg Temp
763
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -6° / 22° | 35 mm |
| February | -4° / 24° | 32 mm |
| March | 1° / 34° | 55 mm |
| April | 8° / 46° | 71 mm |
| May | 14° / 58° | 68 mm |
| June | 19° / 67° | 81 mm |
| July | 22° / 71° | 68 mm |
| August | 21° / 69° | 85 mm |
| September | 17° / 62° | 92 mm |
| October | 10° / 51° | 57 mm |
| November | 4° / 39° | 66 mm |
| December | -2° / 28° | 53 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Genesee County, MI
The most comfortable months to visit Genesee County, MI are typically July, August and June, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 28°C high). The coldest is January (near -10°C low). September is usually the wettest month.
Where to stay near Genesee County
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.