Census tract · Milwaukee County
Census Tract 31, Milwaukee County, Wisconsin
Census Tract 31, GEOID 55079003100, in Milwaukee County, Wisconsin, entirely within Milwaukee. 3,851 residents in the ACS 2020-2024 5-year estimates (±636); the 2020 Census counted 3,415.
Residents, 2020-2024
3,851
±636 (90% margin)
2020 Census count: 3,415
Median household income
$44,958
±$25,834 (90% margin)
Milwaukee County: $64,435
Median home value
$134,800
±$14,726 (90% margin)
Milwaukee County: $230,700
Median gross rent
$1,146
±$186 (90% margin)
Milwaukee County: $1,101
Where is Census Tract 31?
Census Tract 31 is one of 302 census tracts in Milwaukee County, Wisconsin. It covers 0.48 square miles of land, 7,056 residents per square mile in 2020. Its GEOID, 55079003100, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Milwaukee | 100% |
6 census tracts border Census Tract 31: Tract 27 ($37,231), Tract 29 ($45,865), Tract 30 ($71,250), Tract 32 ($56,811), Tract 35 ($72,589) and Tract 36 ($62,721). 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 31?
The 2020-2024 American Community Survey puts Census Tract 31's population at 3,851 (±636) in 1,269 households; the 2020 Census counted 3,415 residents and 1,355 housing units.
| Measure | Tract 31 | Milwaukee |
|---|---|---|
| Total population | 3,851 ±636 | 566,973 |
| Households | 1,269 ±168 | 232,520 |
| Average household size | 3.03 ±0.47 | 2.37 |
| Housing units | 1,322 ±165 | 259,101 |
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 31?
The median resident of Census Tract 31 is 32.4 years old; 32.7% are under 18 and 12.2% are 65 or older. The largest group is non-Hispanic Black residents at 70.5%, then non-Hispanic white residents at 14.0%.
| Measure | Tract 31 | Milwaukee |
|---|---|---|
| Median age | 32.4 ±6.0 | 32.4 |
| Under 18 years | 32.7% ±6.8 pts | 25.4% |
| 65 years and over | 12.2% ±4.4 pts | 12.0% |
| Hispanic or Latino (any race) | 0.9% ±1.2 pts | 20.9% |
| White alone, not Hispanic | 14.0% ±7.3 pts | 31.7% |
| Black or African American alone, not Hispanic | 70.5% ±6.8 pts | 37.9% |
| Asian alone, not Hispanic | 11.7% ±7.6 pts | 5.0% |
| American Indian and Alaska Native alone, not Hispanic | 0.7% ±1.0 pts | 0.3% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.6 pts | 0.0% |
| Two or more races, not Hispanic | 1.7% ±1.6 pts | 3.9% |
| Some other race alone, not Hispanic | 0.5% ±0.8 pts | 0.3% |
| Born outside the United States | 5.1% ±3.6 pts | 11.1% |
| Speak a language other than English at home (age 5+) | 10.6% ±6.5 pts | 22.0% |
| Civilian veterans (age 18+) | 3.1% ±2.0 pts | 3.6% |
| With a disability | 12.6% ±6.0 pts | 13.5% |
| No health insurance coverage | 6.6% ±3.5 pts | 9.1% |
| High school graduate or higher (age 25+) | 85.6% ±5.6 pts | 85.5% |
| Bachelor's degree or higher (age 25+) | 11.9% ±6.6 pts | 27.4% |
| Graduate or professional degree (age 25+) | 4.2% ±4.9 pts | 9.8% |
| Lived in the same house a year earlier | 85.0% ±11.1 pts | 85.7% |
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 31 earn?
Half of the 1,269 households in Census Tract 31 earn less than $44,958 a year (±$25,834), against $64,435 across Milwaukee County: 215th highest of the county's 293 tracts with a reliable estimate. 37.8% of residents live below the poverty line.
| Measure | Tract 31 | Milwaukee |
|---|---|---|
| Median household income | $44,958 ±$25,834 | $54,234 |
| Mean household income | $64,806 ±$14,357 | $73,283 |
| Per capita income | $22,114 ±$5,534 | $30,994 |
| People below the poverty line | 37.8% ±18.5 pts | 22.8% |
| Children under 18 below the poverty line | 54.1% ±28.9 pts | 31.7% |
| Households receiving SNAP | 28.4% ±11.4 pts | 27.9% |
| Households with a computer | 84.6% ±10.1 pts | 94.3% |
| Households with a broadband subscription | 82.2% ±10.4 pts | 88.2% |
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 31?
Owners occupy 56.2% of Census Tract 31's occupied homes and renters 43.8%. The median owner-occupied home is valued at $134,800 by its owner (±$14,726). The median renter pays $1,146 a month including utilities, and 58.7% of renters pay 35% or more of their income on rent.
| Measure | Tract 31 | Milwaukee |
|---|---|---|
| Median home value (owner-occupied) | $134,800 ±$14,726 | $184,000 |
| Median gross rent | $1,146 ±$186 | $1,059 |
| Renters paying 35% or more of income on rent | 58.7% ±17.6 pts | 42.3% |
| Median monthly owner costs, with a mortgage | $1,184 ±$121 | $1,533 |
| Owner-occupied homes | 56.2% ±15.8 pts | 41.8% |
| Renter-occupied homes | 43.8% ±15.8 pts | 58.2% |
| Housing units | 1,322 ±165 | 259,101 |
| Single-family detached homes | 79.9% ±7.0 pts | 39.1% |
| Mobile homes | 0.8% ±1.5 pts | 0.4% |
| Built 2020 or later | 0.4% ±0.6 pts | 0.5% |
| Built 2010 to 2019 | 0.0% ±1.7 pts | 3.7% |
| Built 1939 or earlier | 19.7% ±8.4 pts | 34.0% |
| Households with no vehicle | 17.2% ±10.5 pts | 16.2% |
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 31 get to work?
77.9% of Census Tract 31's workers drive alone. The average trip to work takes 25.4 minutes.
| Measure | Tract 31 | Milwaukee |
|---|---|---|
| In the labor force (age 16+) | 56.5% ±10.1 pts | 64.5% |
| Unemployment rate | 9.9% ±8.2 pts | 6.2% |
| Drove alone to work | 77.9% ±13.0 pts | 66.3% |
| Carpooled | 8.4% ±6.0 pts | 9.9% |
| Public transportation | 0.0% ±1.7 pts | 5.0% |
| Walked | 0.0% ±1.7 pts | 4.0% |
| Worked from home | 9.2% ±9.1 pts | 12.9% |
| Mean travel time to work | 25.4 min ±2.9 | 22.4 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 31 compare with the other tracts in Milwaukee County?
Among Milwaukee County's tracts with a reliable estimate, Census Tract 31 ranks as shown below (1 = highest).
| Measure | In Milwaukee County | In Milwaukee |
|---|---|---|
| Population | 81st of 300 | 35th of 209 |
| Residents per square mile | 141st of 301 | 123rd of 210 |
| Median household income | 215th of 293 | 125th of 202 |
| Per capita income | 226th of 299 | 135th of 208 |
| Median home value | 219th of 276 | 128th of 185 |
| Median gross rent | 99th of 295 | 49th of 208 |
| Poverty rate | 42nd of 246 | 42nd of 181 |
| Bachelor's degree or higher | 230th of 264 | 139th of 173 |
| Median age | 202nd of 299 | 114th of 208 |
| Owner-occupied share | 117th of 289 | 57th of 198 |
The tracts next to it on Milwaukee County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 163 | 212th | $45,329±$15,119 · within the margin of this tract |
| Tract 91 | 213th | $45,250±$10,243 · within the margin of this tract |
| Tract 159 | 214th | $44,960±$9,925 · within the margin of this tract |
| Tract 31 | 215th | $44,958±$25,834 |
| Tract 160 | 216th | $44,323±$11,778 · within the margin of this tract |
| Tract 201 | 217th | $44,271±$13,314 · within the margin of this tract |
| Tract 9 | 218th | $44,193±$17,435 · 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 31?
2 of the 18 figures for Census Tract 31 on this page carry a coefficient of variation over 40% and are 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