Census tract · Washtenaw County
Census Tract 4004, Washtenaw County, Michigan
Census Tract 4004, GEOID 26161400400, in Washtenaw County, Michigan, entirely within Ann Arbor. 3,413 residents in the ACS 2020-2024 5-year estimates (±479); the 2020 Census counted 3,014.
Residents, 2020-2024
3,413
±479 (90% margin)
2020 Census count: 3,014
Median household income
$146,094
±$36,936 (90% margin)
Washtenaw County: $89,180
Median home value
$699,800
±$48,082 (90% margin)
Washtenaw County: $374,100
Median gross rent
$1,487
±$299 (90% margin)
Washtenaw County: $1,463
Where is Census Tract 4004?
Census Tract 4004 is one of 107 census tracts in Washtenaw County, Michigan. It covers 0.40 square miles of land, 7,611 residents per square mile in 2020. Its GEOID, 26161400400, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Ann Arbor | 100% |
5 census tracts border Census Tract 4004: Tract 4003, Tract 4005 ($34,488), Tract 4046 ($77,121), Tract 4052 ($112,384) and Tract 4053 ($249,079). The figure in brackets is each tract's median household income.
Whether a tract counts as low- or moderate-income for bank lending (the Community Reinvestment Act) is set by the FFIEC against its metro area's family income: look it up in the FFIEC census geocoder.
Source: 2024 Gazetteer and 2020 block assignment files, U.S. Census Bureau · Census reference files
How many people live in Census Tract 4004?
The 2020-2024 American Community Survey puts Census Tract 4004's population at 3,413 (±479) in 1,289 households; the 2020 Census counted 3,014 residents and 1,240 housing units.
| Measure | Tract 4004 | Ann Arbor |
|---|---|---|
| Total population | 3,413 ±479 | 122,036 |
| Households | 1,289 ±164 | 50,499 |
| Average household size | 2.58 ±0.30 | 2.19 |
| Housing units | 1,298 ±160 | 54,399 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Census Tract 4004?
The median resident of Census Tract 4004 is 33.7 years old; 13.6% are under 18 and 16.8% are 65 or older. The largest group is non-Hispanic white residents at 75.1%, then non-Hispanic Asian residents at 11.6%. 8.3% of residents were born outside the United States.
| Measure | Tract 4004 | Ann Arbor |
|---|---|---|
| Median age | 33.7 ±7.9 | 27.7 |
| Under 18 years | 13.6% ±2.4 pts | 12.4% |
| 65 years and over | 16.8% ±5.2 pts | 12.9% |
| Hispanic or Latino (any race) | 5.7% ±2.8 pts | 5.5% |
| White alone, not Hispanic | 75.1% ±8.0 pts | 66.5% |
| Black or African American alone, not Hispanic | 3.1% ±3.8 pts | 6.4% |
| Asian alone, not Hispanic | 11.6% ±7.4 pts | 15.6% |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±0.9 pts | 0.2% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.9 pts | 0.0% |
| Two or more races, not Hispanic | 3.9% ±2.8 pts | 5.4% |
| Some other race alone, not Hispanic | 0.6% ±0.6 pts | 0.4% |
| Born outside the United States | 8.3% ±2.6 pts | 18.6% |
| Speak a language other than English at home (age 5+) | 10.7% ±4.6 pts | 22.2% |
| Civilian veterans (age 18+) | 7.0% ±4.5 pts | 2.4% |
| With a disability | 7.4% ±3.0 pts | 8.5% |
| No health insurance coverage | 2.6% ±2.3 pts | 2.6% |
| High school graduate or higher (age 25+) | 99.5% ±0.8 pts | 97.9% |
| Bachelor's degree or higher (age 25+) | 89.3% ±4.6 pts | 77.9% |
| Graduate or professional degree (age 25+) | 66.4% ±5.8 pts | 48.0% |
| Lived in the same house a year earlier | 66.7% ±11.7 pts | 65.1% |
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 Census Tract 4004 earn?
Half of the 1,289 households in Census Tract 4004 earn less than $146,094 a year (±$36,936), against $89,180 across Washtenaw County: 14th highest of the county's 97 tracts with a reliable estimate. 23.3% of residents live below the poverty line.
| Measure | Tract 4004 | Ann Arbor |
|---|---|---|
| Median household income | $146,094 ±$36,936 | $82,212 |
| Mean household income | $222,862 ±$29,091 | $123,028 |
| Per capita income | $87,459 ±$15,818 | $55,459 |
| People below the poverty line | 23.3% ±10.1 pts | 23.8% |
| Children under 18 below the poverty line | 0.0% ±6.3 pts | 13.2% |
| Households receiving SNAP | 0.0% ±2.3 pts | 5.0% |
| Households with a computer | 99.3% ±1.1 pts | 98.9% |
| Households with a broadband subscription | 98.7% ±1.6 pts | 93.9% |
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 Census Tract 4004?
Owners occupy 74.4% of Census Tract 4004's occupied homes and renters 25.6%. The median owner-occupied home is valued at $699,800 by its owner (±$48,082). The median renter pays $1,487 a month including utilities, and 56.7% of renters pay 35% or more of their income on rent.
| Measure | Tract 4004 | Ann Arbor |
|---|---|---|
| Median home value (owner-occupied) | $699,800 ±$48,082 | $453,400 |
| Median gross rent | $1,487 ±$299 | $1,649 |
| Renters paying 35% or more of income on rent | 56.7% ±21.3 pts | 53.0% |
| Median monthly owner costs, with a mortgage | $3,142 ±$380 | $2,436 |
| Owner-occupied homes | 74.4% ±8.0 pts | 45.5% |
| Renter-occupied homes | 25.6% ±8.0 pts | 54.5% |
| Housing units | 1,298 ±160 | 54,399 |
| Single-family detached homes | 84.0% ±5.6 pts | 41.6% |
| Mobile homes | 0.0% ±2.3 pts | 0.3% |
| Built 2020 or later | 0.0% ±2.3 pts | 2.6% |
| Built 2010 to 2019 | 0.5% ±0.9 pts | 6.7% |
| Built 1939 or earlier | 83.4% ±6.3 pts | 14.8% |
| Households with no vehicle | 4.3% ±2.6 pts | 12.8% |
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 do people in Census Tract 4004 get to work?
38.0% of Census Tract 4004's workers drive alone and 31.6% work from home. The average trip to work takes 23.3 minutes.
| Measure | Tract 4004 | Ann Arbor |
|---|---|---|
| In the labor force (age 16+) | 62.7% ±8.8 pts | 60.3% |
| Unemployment rate | 3.8% ±3.4 pts | 3.9% |
| Drove alone to work | 38.0% ±9.2 pts | 43.0% |
| Carpooled | 3.2% ±4.0 pts | 5.2% |
| Public transportation | 1.8% ±2.0 pts | 7.2% |
| Walked | 21.5% ±8.2 pts | 13.0% |
| Worked from home | 31.6% ±8.4 pts | 28.7% |
| Mean travel time to work | 23.3 min ±3.2 | 20.0 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
How does Census Tract 4004 compare with the other tracts in Washtenaw County?
Among Washtenaw County's tracts with a reliable estimate, Census Tract 4004 ranks as shown below (1 = highest).
| Measure | In Washtenaw County | In Ann Arbor |
|---|---|---|
| Population | 52nd of 104 | 21st of 40 |
| Residents per square mile | 11th of 107 | 8th of 41 |
| Median household income | 14th of 97 | 7th of 36 |
| Per capita income | 8th of 104 | 6th of 40 |
| Median home value | 4th of 93 | 4th of 36 |
| Median gross rent | 52nd of 86 | 28th of 38 |
| Poverty rate | 20th of 71 | 11th of 29 |
| Bachelor's degree or higher | 4th of 101 | 4th of 39 |
| Median age | 71st of 104 | 21st of 40 |
| Owner-occupied share | 45th of 95 | 11th of 37 |
The tracts next to it on Washtenaw County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 4023 | 11th | $150,446±$25,269 · within the margin of this tract |
| Tract 4540.01 | 12th | $150,030±$61,058 · within the margin of this tract |
| Tract 4043 | 13th | $148,056±$36,396 · within the margin of this tract |
| Tract 4004 | 14th | $146,094±$36,936 |
| Tract 4162 | 15th | $145,857±$23,252 · within the margin of this tract |
| Tract 4560 | 16th | $144,781±$53,103 · within the margin of this tract |
| Tract 4044 | 17th | $144,028±$17,355 · within the margin of this tract |
"Within the margin": the two incomes differ by less than their combined 90% margins, so the survey cannot say which is higher and the ranks between them are not firm.
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · How ranks are computed
How reliable are the figures for Census Tract 4004?
1 of the 18 figures for Census Tract 4004 on this page carries a coefficient of variation over 40% and is marked with a ring: they come from a small sample, so read them as rough.
A census tract's figures rest on a few hundred sampled households over five years, so its margins are wider than a city's. Two tracts differ only when the gap between them is larger than their combined 90% margin (the square root of the sum of the two squared margins). How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · Check it at data.census.gov
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections