Census tract · Waukesha County
Census Tract 2042.02, Waukesha County, Wisconsin
Census Tract 2042.02, GEOID 55133204202, in Waukesha County, Wisconsin, mostly within Oconomowoc (87% of its census blocks). 4,359 residents in the ACS 2020-2024 5-year estimates (±434); the 2020 Census counted 4,294.
Residents, 2020-2024
4,359
±434 (90% margin)
2020 Census count: 4,294
Median household income
$128,065
±$13,529 (90% margin)
Waukesha County: $106,076
Median home value
$458,700
±$17,075 (90% margin)
Waukesha County: $398,200
Median gross rent
$1,386
±$149 (90% margin)
Waukesha County: $1,356
Where is Census Tract 2042.02?
Census Tract 2042.02 is one of 98 census tracts in Waukesha County, Wisconsin. It covers 4.37 square miles of land, 983 residents per square mile in 2020. Its GEOID, 55133204202, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Oconomowoc | 87% |
| Oconomowoc (town) | 12% |
| Summit | 1% |
6 census tracts border Census Tract 2042.02: Tract 1008 in Jefferson County ($101,131), Tract 1017.02 in Jefferson County ($90,227), Tract 2041 ($148,889), Tract 2042.01 ($53,641), Tract 2043.02 ($87,473) and Tract 2044 ($103,839). 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 2042.02?
The 2020-2024 American Community Survey puts Census Tract 2042.02's population at 4,359 (±434) in 1,466 households; the 2020 Census counted 4,294 residents and 1,613 housing units.
| Measure | Tract 2042.02 | Oconomowoc |
|---|---|---|
| Total population | 4,359 ±434 | 19,080 |
| Households | 1,466 ±132 | 7,833 |
| Average household size | 2.91 ±0.24 | 2.40 |
| Housing units | 1,550 ±155 | 8,025 |
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 2042.02?
The median resident of Census Tract 2042.02 is 41.4 years old; 22.7% are under 18 and 17.2% are 65 or older. The largest group is non-Hispanic white residents at 97.2%, then Hispanic or Latino residents (of any race) at 1.8%.
| Measure | Tract 2042.02 | Oconomowoc |
|---|---|---|
| Median age | 41.4 ±3.4 | 42.6 |
| Under 18 years | 22.7% ±2.8 pts | 20.7% |
| 65 years and over | 17.2% ±5.1 pts | 19.9% |
| Hispanic or Latino (any race) | 1.8% ±1.7 pts | 3.6% |
| White alone, not Hispanic | 97.2% ±2.0 pts | 93.9% |
| Black or African American alone, not Hispanic | 0.0% ±0.1 pts | 0.3% |
| Asian alone, not Hispanic | 0.0% ±0.5 pts | 0.4% |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±0.5 pts | 0.2% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.5 pts | 0.1% |
| Two or more races, not Hispanic | 0.9% ±1.0 pts | 1.4% |
| Some other race alone, not Hispanic | 0.0% ±0.5 pts | 0.1% |
| Born outside the United States | 0.9% ±1.0 pts | 1.5% |
| Speak a language other than English at home (age 5+) | 1.2% ±1.1 pts | 3.2% |
| Civilian veterans (age 18+) | 4.2% ±2.2 pts | 6.3% |
| With a disability | 9.7% ±5.7 pts | 11.0% |
| No health insurance coverage | 5.4% ±4.1 pts | 3.7% |
| High school graduate or higher (age 25+) | 98.0% ±1.8 pts | 97.9% |
| Bachelor's degree or higher (age 25+) | 50.5% ±6.7 pts | 48.4% |
| Graduate or professional degree (age 25+) | 14.1% ±4.8 pts | 14.3% |
| Lived in the same house a year earlier | 80.0% ±6.9 pts | 84.9% |
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 2042.02 earn?
Half of the 1,466 households in Census Tract 2042.02 earn less than $128,065 a year (±$13,529), against $106,076 across Waukesha County: 23rd highest of the county's 98 tracts with a reliable estimate. 8.6% of residents live below the poverty line.
| Measure | Tract 2042.02 | Oconomowoc |
|---|---|---|
| Median household income | $128,065 ±$13,529 | $106,425 |
| Mean household income | $130,907 ±$9,539 | $128,184 |
| Per capita income | $46,589 ±$3,223 | $53,735 |
| People below the poverty line | 8.6% ±5.0 pts | 7.7% |
| Children under 18 below the poverty line | 7.7% ±8.1 pts | 6.9% |
| Households receiving SNAP | 1.8% ±2.2 pts | 6.6% |
| Households with a computer | 96.6% ±3.2 pts | 97.3% |
| Households with a broadband subscription | 94.5% ±3.5 pts | 94.7% |
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 2042.02?
Owners occupy 83.7% of Census Tract 2042.02's occupied homes and renters 16.3%. The median owner-occupied home is valued at $458,700 by its owner (±$17,075). The median renter pays $1,386 a month including utilities, and 59.8% of renters pay 35% or more of their income on rent.
| Measure | Tract 2042.02 | Oconomowoc |
|---|---|---|
| Median home value (owner-occupied) | $458,700 ±$17,075 | $394,500 |
| Median gross rent | $1,386 ±$149 | $1,301 |
| Renters paying 35% or more of income on rent | 59.8% ±20.5 pts | 47.9% |
| Median monthly owner costs, with a mortgage | $2,420 ±$190 | $2,193 |
| Owner-occupied homes | 83.7% ±6.5 pts | 69.1% |
| Renter-occupied homes | 16.3% ±6.5 pts | 30.9% |
| Housing units | 1,550 ±155 | 8,025 |
| Single-family detached homes | 76.7% ±8.0 pts | 63.9% |
| Mobile homes | 0.0% ±1.4 pts | 0.1% |
| Built 2020 or later | 7.2% ±4.0 pts | 2.1% |
| Built 2010 to 2019 | 8.6% ±4.5 pts | 18.3% |
| Built 1939 or earlier | 6.7% ±5.0 pts | 13.5% |
| Households with no vehicle | 2.0% ±1.7 pts | 3.5% |
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 2042.02 get to work?
74.7% of Census Tract 2042.02's workers drive alone and 17.7% work from home. The average trip to work takes 26.3 minutes.
| Measure | Tract 2042.02 | Oconomowoc |
|---|---|---|
| In the labor force (age 16+) | 69.0% ±7.1 pts | 67.0% |
| Unemployment rate | 2.4% ±2.5 pts | 2.2% |
| Drove alone to work | 74.7% ±4.9 pts | 74.9% |
| Carpooled | 4.6% ±3.1 pts | 4.6% |
| Public transportation | 0.3% ±0.5 pts | 0.2% |
| Walked | 0.4% ±0.7 pts | 1.2% |
| Worked from home | 17.7% ±4.8 pts | 18.2% |
| Mean travel time to work | 26.3 min ±2.8 | 24.6 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 2042.02 compare with the other tracts in Waukesha County?
Among Waukesha County's tracts with a reliable estimate, Census Tract 2042.02 ranks as shown below (1 = highest).
| Measure | In Waukesha County | In Oconomowoc |
|---|---|---|
| Population | 43rd of 98 | 2nd of 5 |
| Residents per square mile | 64th of 98 | 4th of 5 |
| Median household income | 23rd of 98 | 1st of 5 |
| Per capita income | 78th of 97 | 4th of 5 |
| Median home value | 22nd of 98 | 2nd of 5 |
| Median gross rent | 51st of 90 | 3rd of 5 |
| Poverty rate | 16th of 52 | 3rd of 3 |
| Bachelor's degree or higher | 39th of 98 | 3rd of 5 |
| Median age | 71st of 98 | 4th of 5 |
| Owner-occupied share | 42nd of 98 | 2nd of 5 |
The tracts next to it on Waukesha County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 2005 | 20th | $129,609±$36,107 · within the margin of this tract |
| Tract 2007 | 21st | $129,607±$7,835 · within the margin of this tract |
| Tract 2019 | 22nd | $129,238±$15,622 · within the margin of this tract |
| Tract 2042.02 | 23rd | $128,065±$13,529 |
| Tract 2015.07 | 24th | $127,895±$18,880 · within the margin of this tract |
| Tract 2009.01 | 25th | $125,808±$15,568 · within the margin of this tract |
| Tract 2045.03 | 26th | $125,703±$20,013 · 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 2042.02?
3 of the 18 figures for Census Tract 2042.02 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