County · Michigan
Washtenaw County, Michigan
Washtenaw County, Michigan. Washtenaw County had 370,214 residents in 2025 by the Census Bureau's estimate, down 0.6% since 2020, while Michigan grew 0.5%. It holds 29 places (8 cities, villages and boroughs, 20 towns and townships and 1 census-designated) and 107 census tracts. GEOID 26161.
Washtenaw County is the county of the Ann Arbor, MI metropolitan statistical area (the Census Bureau's July 2023 delineation).
Residents, July 2025 estimate
370,214
Census Bureau estimate (no margin published)
2020 Census count: 372,258 · ACS 2020-2024: 369,822
Median household income
$89,180
±$2,487 (90% margin)
Michigan: $72,875
Median home value
$374,100
±$4,164 (90% margin)
Michigan: $231,600
Median gross rent
$1,463
±$21 (90% margin)
Michigan: $1,129
How many people live in Washtenaw County, and is it growing?
The 2020 Census counted 372,258 residents in Washtenaw County. The Census Bureau estimates 370,214 for July 1, 2025, down 0.6% since 2020, while Michigan grew 0.5%. The 2020-2024 American Community Survey puts the population at 369,822 over 706 square miles of land.
| Measure | Washtenaw County | Michigan | Change since 2015-2019 |
|---|---|---|---|
| Total population | 369,822 | 10,077,761 | +2,822 |
| Households | 150,550±825 | 4,076,369 | +9,305 |
| Average household size | 2.33±0.01 | 2.42 | −0.12 |
| Housing units | 159,782±124 | 4,622,236 | +8,759 |
Washtenaw County's population since 2000
From 322,895 in 2000 to 370,214 in 2025: up 14.7%. The 2000, 2010 and 2020 figures are census counts. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); PEP Vintage 2025 (CO-EST2025); 2020 Census · Check it at data.census.gov
What cities and towns are in Washtenaw County?
Washtenaw County holds 29 places: 8 cities, villages and boroughs (incorporated places), 20 towns and townships (county subdivisions with their own government) and 1 census-designated place. The largest is Ann Arbor with 122,233 residents (2025 estimate). Places that cross a county line are listed with the share of their 2020 residents who live in this county.
| Ann Arbor | 123,851 | $82,212 |
|---|---|---|
| Ypsilanti Charter Township | 55,670 | $69,716 |
| Pittsfield Charter Township | 39,147 | $102,463 |
| Ypsilanti | 20,648 | $46,588 |
| Scio Township | 17,552 | $129,816 |
| Superior Charter Township | 14,832 | $101,208 |
| York Charter Township | 9,108 | $136,909 |
| Saline | 8,948 | $88,346 |
| Northfield Township | 8,550 | $94,259 |
| Augusta Charter Township | 7,083 | $108,457 |
| Salem Township, Washtenaw County | 7,018 | $112,378 |
| Dexter Township | 6,696 | $124,088 |
| Webster Township | 6,575 | $155,104 |
| Lodi Township | 6,417 | $137,727 |
| Chelsea | 5,467 | $72,098 |
| Whitmore Lake | 7,584 | $86,779 |
| Ann Arbor Charter Township | 4,673 | $164,875 |
| Manchester Township | 4,626 | $84,732 |
| Dexter | 4,500 | $106,637 |
| Lima Township | 4,024 | $119,236 |
| Milan | 6,079 | $96,949 |
| Sylvan Township, Washtenaw County | 3,311 | $102,656 |
| Lyndon Township | 2,656 | $122,568 |
| Saline Township | 2,277 | $102,500 |
| Manchester | 2,037 | $87,614 |
| Sharon Township | 1,817 | $105,865 |
| Bridgewater Township | 1,615 | $103,226 |
| Freedom Township | 1,332 | $112,969 |
| Barton HillsGEOID 2605660 | 316 | $250,000 or more |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 place-by-county parts · Check it at data.census.gov
Who lives in Washtenaw County?
The median resident of Washtenaw County is 35.0 years old; 18.2% are under 18 and 15.7% are 65 or older. The largest group is non-Hispanic white residents at 67.2%, then non-Hispanic Black residents at 11.3%. 13.1% of residents were born outside the United States.
| Measure | Washtenaw County | Michigan | Change since 2015-2019 |
|---|---|---|---|
| Median age | 35.0±0.1 | 40.2 | +1.4 |
| Under 18 years | 18.2%±0.1 pts | 21.2% | – |
| 65 years and over | 15.7%±0.1 pts | 18.6% | – |
| Hispanic or Latino (any race) | 5.8% | 5.9% | +1.1 pts |
| White alone, not Hispanic | 67.2%±0.2 pts | 72.4% | −2.9 pts |
| Black or African American alone, not Hispanic | 11.3%±0.3 pts | 13.1% | −0.5 pts |
| Asian alone, not Hispanic | 9.2%±0.2 pts | 3.4% | no clear change |
| American Indian and Alaska Native alone, not Hispanic | 0.2%±0.1 pts | 0.3% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±0.1 pts | 0.0% | – |
| Two or more races, not Hispanic | 5.8%±0.4 pts | 4.5% | – |
| Some other race alone, not Hispanic | 0.6%±0.1 pts | 0.5% | – |
| Born outside the United States | 13.1%±0.4 pts | 7.2% | +0.6 pts |
| Speak a language other than English at home (age 5+) | 15.7%±0.4 pts | 10.4% | – |
| Civilian veterans (age 18+) | 4.0%±0.2 pts | 5.8% | – |
| With a disability | 10.6%±0.4 pts | 14.3% | – |
| No health insurance coverage | 3.3%±0.3 pts | 4.9% | no clear change |
| High school graduate or higher (age 25+) | 96.0%±0.4 pts | 92.1% | – |
| Bachelor's degree or higher (age 25+) | 58.7%±0.9 pts | 32.4% | +2.8 pts |
| Graduate or professional degree (age 25+) | 31.5%±0.8 pts | 12.7% | – |
| Moved from another state in the past year | 4.3%±0.3 pts | 1.4% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Washtenaw County earn?
Half of Washtenaw County's 150,550 households earn less than $89,180 a year (±$2,487), against $72,875 in Michigan. In 2015-2019 it was $89,331 in 2024 dollars; the margins of error cannot tell the two periods apart. 14.2% of residents live below the poverty line.
| Measure | Washtenaw County | Michigan | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $89,180±$2,487 | $72,875 | no clear change |
| Mean household income | $124,712±$2,119 | $98,700 | – |
| Per capita income | $52,714±$875 | $40,735 | +$1,765 |
| People below the poverty line | 14.2%±0.8 pts | 13.2% | no clear change |
| Children under 18 below the poverty line | 12.3%±1.5 pts | 17.6% | no clear change |
| Households receiving SNAP | 8.5%±0.6 pts | 13.5% | – |
| Households with a broadband subscription | 94.1%±0.4 pts | 90.5% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Washtenaw County?
Owners occupy 61.6% of Washtenaw County's occupied homes and renters 38.4%. The median owner-occupied home is valued at $374,100 by its owner (±$4,164). The median renter pays $1,463 a month including utilities, and 47.9% of renters pay 35% or more of their income on rent.
| Measure | Washtenaw County | Michigan | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $374,100±$4,164 | $231,600 | +$49,689 |
| Median gross rent | $1,463±$21 | $1,129 | +$92 |
| Renters paying 35% or more of income on rent | 47.9%±1.8 pts | 41.4% | +6.8 pts |
| Median monthly owner costs, with a mortgage | $2,150±$32 | $1,569 | – |
| Owner-occupied homes | 61.6%±0.8 pts | 73.2% | no clear change |
| Housing units | 159,782±124 | 4,622,236 | +8,759 |
| Homeowner vacancy rate | 0.6%±0.2 pts | 0.8% | – |
| Rental vacancy rate | 3.7%±0.7 pts | 5.1% | – |
| Single-family detached homes | 56.7%±0.7 pts | 72.0% | – |
| Mobile homes | 3.7%±0.3 pts | 5.0% | – |
| Built 2020 or later | 2.0%±0.3 pts | 1.0% | – |
| Built 1939 or earlier | 11.5%±0.6 pts | 14.6% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Washtenaw County building?
Builders took permits for 1,088 new housing units across Washtenaw County in 2025 (532 single-family), 2.9 per 1,000 residents.
Source: Building Permits Survey, annual county files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Washtenaw County get to work?
59.4% of Washtenaw County's workers drive alone and 22.6% work from home. The average trip to work takes 23.5 minutes. The unemployment rate in 2020-2024 averaged 4.6%.
| Measure | Washtenaw County | Michigan | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 63.0%±0.6 pts | 61.3% | – |
| Unemployment rate | 4.6%±0.4 pts | 5.7% | no clear change |
| Drove alone to work | 59.4%±1.1 pts | 74.3% | – |
| Carpooled | 6.8%±0.6 pts | 7.9% | – |
| Public transportation | 3.7%±0.4 pts | 0.9% | – |
| Walked | 5.6%±0.5 pts | 2.0% | – |
| Worked from home | 22.6%±0.7 pts | 13.5% | +16.7 pts |
| Mean travel time to work | 23.5 min±0.4 | 24.2 min | −0.7 min |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What are Washtenaw County's census tracts?
Washtenaw County is divided into 107 census tracts. Among those with a reliable estimate, median household income runs from $19,538 (Tract 4022.01) to $249,079 (Tract 4053).
All 107 census tracts of Washtenaw County, with their figures
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · Check it at data.census.gov
How does Washtenaw County compare with Michigan's other counties?
| Measure | Rank |
|---|---|
| Population | 6th of 83 |
| Growth 2020-2025 | 64th of 83 |
| Residents per square mile | 6th of 83 |
| Median household income | 5th of 83 |
| Median home value | 2nd of 83 |
| Median gross rent | 1st of 83 |
| Poverty rate | 30th of 83 |
| Bachelor's degree or higher | 1st of 83 |
| Median age | 79th of 83 |
Source: PlainCities ranks from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Washtenaw County are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.