Census tract · Waukesha County
Census Tract 2011.01, Waukesha County, Wisconsin
Census Tract 2011.01, GEOID 55133201101, in Waukesha County, Wisconsin, mostly within Brookfield (99% of its census blocks). 5,211 residents in the ACS 2020-2024 5-year estimates (±463); the 2020 Census counted 5,233.
Residents, 2020-2024
5,211
±463 (90% margin)
2020 Census count: 5,233
Median household income
$122,146
±$11,826 (90% margin)
Waukesha County: $106,076
Median home value
$460,100
±$18,891 (90% margin)
Waukesha County: $398,200
Median gross rent
$1,903
±$168 (90% margin)
Waukesha County: $1,356
Where is Census Tract 2011.01?
Census Tract 2011.01 is one of 98 census tracts in Waukesha County, Wisconsin. It covers 3.83 square miles of land, 1,366 residents per square mile in 2020. Its GEOID, 55133201101, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Brookfield | 99% |
| Elm Grove | 1% |
7 census tracts border Census Tract 2011.01: Tract 2009.02 ($149,856), Tract 2010.01 ($125,313), Tract 2010.02 ($159,293), Tract 2011.02 ($111,359), Tract 2012.03 ($112,965), Tract 2012.05 ($162,633) and Tract 2014.03 ($78,877). 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 2011.01?
The 2020-2024 American Community Survey puts Census Tract 2011.01's population at 5,211 (±463) in 2,344 households; the 2020 Census counted 5,233 residents and 2,128 housing units.
| Measure | Tract 2011.01 | Brookfield |
|---|---|---|
| Total population | 5,211 ±463 | 41,273 |
| Households | 2,344 ±278 | 16,127 |
| Average household size | 2.21 ±0.19 | 2.53 |
| Housing units | 2,415 ±262 | 16,654 |
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 2011.01?
The median resident of Census Tract 2011.01 is 42.9 years old; 19.8% are under 18 and 23.5% are 65 or older. The largest group is non-Hispanic white residents at 71.9%, then non-Hispanic Asian residents at 13.6%. 17.0% of residents were born outside the United States.
| Measure | Tract 2011.01 | Brookfield |
|---|---|---|
| Median age | 42.9 ±3.3 | 43.8 |
| Under 18 years | 19.8% ±2.6 pts | 23.8% |
| 65 years and over | 23.5% ±4.0 pts | 23.4% |
| Hispanic or Latino (any race) | 9.4% ±5.1 pts | 4.4% |
| White alone, not Hispanic | 71.9% ±6.2 pts | 77.5% |
| Black or African American alone, not Hispanic | 0.4% ±0.6 pts | 1.4% |
| Asian alone, not Hispanic | 13.6% ±5.4 pts | 11.2% |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±0.4 pts | 0.1% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.4 pts | 0.0% |
| Two or more races, not Hispanic | 3.3% ±2.3 pts | 4.8% |
| Some other race alone, not Hispanic | 1.2% ±1.2 pts | 0.6% |
| Born outside the United States | 17.0% ±6.1 pts | 11.6% |
| Speak a language other than English at home (age 5+) | 19.2% ±6.2 pts | 14.0% |
| Civilian veterans (age 18+) | 3.8% ±1.9 pts | 4.9% |
| With a disability | 11.9% ±4.2 pts | 8.2% |
| No health insurance coverage | 1.9% ±1.6 pts | 2.2% |
| High school graduate or higher (age 25+) | 98.0% ±1.8 pts | 98.1% |
| Bachelor's degree or higher (age 25+) | 71.3% ±4.7 pts | 64.3% |
| Graduate or professional degree (age 25+) | 28.1% ±5.8 pts | 27.5% |
| Lived in the same house a year earlier | 90.7% ±3.5 pts | 91.6% |
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 2011.01 earn?
Half of the 2,344 households in Census Tract 2011.01 earn less than $122,146 a year (±$11,826), against $106,076 across Waukesha County: 31st highest of the county's 98 tracts with a reliable estimate. 4.8% of residents live below the poverty line.
| Measure | Tract 2011.01 | Brookfield |
|---|---|---|
| Median household income | $122,146 ±$11,826 | $129,548 |
| Mean household income | $148,652 ±$14,391 | $173,109 |
| Per capita income | $69,319 ±$8,055 | $68,298 |
| People below the poverty line | 4.8% ±3.0 pts | 3.2% |
| Children under 18 below the poverty line | 0.0% ±2.2 pts | 3.0% |
| Households receiving SNAP | 0.8% ±1.2 pts | 2.1% |
| Households with a computer | 98.4% ±1.4 pts | 97.1% |
| Households with a broadband subscription | 98.1% ±1.5 pts | 95.6% |
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 2011.01?
Owners occupy 63.5% of Census Tract 2011.01's occupied homes and renters 36.5%. The median owner-occupied home is valued at $460,100 by its owner (±$18,891). The median renter pays $1,903 a month including utilities.
| Measure | Tract 2011.01 | Brookfield |
|---|---|---|
| Median home value (owner-occupied) | $460,100 ±$18,891 | $443,900 |
| Median gross rent | $1,903 ±$168 | $1,886 |
| Renters paying 35% or more of income on rent | 12.4% ±10.8 pts | 31.0% |
| Median monthly owner costs, with a mortgage | $2,394 ±$179 | $2,356 |
| Owner-occupied homes | 63.5% ±9.0 pts | 82.8% |
| Renter-occupied homes | 36.5% ±9.0 pts | 17.2% |
| Housing units | 2,415 ±262 | 16,654 |
| Single-family detached homes | 63.6% ±8.5 pts | 76.3% |
| Mobile homes | 0.0% ±0.9 pts | 0.1% |
| Built 2020 or later | 1.2% ±1.5 pts | 0.6% |
| Built 2010 to 2019 | 6.1% ±3.4 pts | 6.0% |
| Built 1939 or earlier | 0.0% ±0.9 pts | 2.5% |
| Households with no vehicle | 2.1% ±1.8 pts | 1.6% |
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 do people in Census Tract 2011.01 get to work?
76.6% of Census Tract 2011.01's workers drive alone and 19.3% work from home. The average trip to work takes 20.2 minutes.
| Measure | Tract 2011.01 | Brookfield |
|---|---|---|
| In the labor force (age 16+) | 61.4% ±5.9 pts | 62.9% |
| Unemployment rate | 2.2% ±2.3 pts | 2.5% |
| Drove alone to work | 76.6% ±6.0 pts | 72.1% |
| Carpooled | 0.8% ±0.9 pts | 4.5% |
| Public transportation | 2.0% ±2.5 pts | 0.3% |
| Walked | 1.0% ±1.8 pts | 0.5% |
| Worked from home | 19.3% ±6.0 pts | 21.5% |
| Mean travel time to work | 20.2 min ±2.6 | 20.7 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
How does Census Tract 2011.01 compare with the other tracts in Waukesha County?
Among Waukesha County's tracts with a reliable estimate, Census Tract 2011.01 ranks as shown below (1 = highest).
| Measure | In Waukesha County | In Brookfield |
|---|---|---|
| Population | 22nd of 98 | 2nd of 11 |
| Residents per square mile | 49th of 98 | 10th of 11 |
| Median household income | 31st of 98 | 7th of 11 |
| Per capita income | 12th of 97 | 3rd of 11 |
| Median home value | 20th of 98 | 3rd of 11 |
| Median gross rent | 11th of 90 | 6th of 9 |
| Poverty rate | 33rd of 52 | 3rd of 4 |
| Bachelor's degree or higher | 3rd of 98 | 1st of 11 |
| Median age | 58th of 98 | 9th of 11 |
| Owner-occupied share | 73rd of 98 | 9th of 11 |
The tracts next to it on Waukesha County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 2010.01 | 28th | $125,313±$24,282 · within the margin of this tract |
| Tract 2004 | 29th | $123,457±$8,433 · within the margin of this tract |
| Tract 2043.01 | 30th | $122,992±$23,817 · within the margin of this tract |
| Tract 2011.01 | 31st | $122,146±$11,826 |
| Tract 2012.04 | 32nd | $121,776±$24,814 · within the margin of this tract |
| Tract 2038.06 | 33rd | $121,176±$39,536 · within the margin of this tract |
| Tract 2040.03 | 34th | $120,333±$16,294 · 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 2011.01?
1 of the 18 figures for Census Tract 2011.01 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