Census tract · Waukesha County
Census Tract 2045.03, Waukesha County, Wisconsin
Census Tract 2045.03, GEOID 55133204503, in Waukesha County, Wisconsin, mostly within Okauchee Lake (95% of its census blocks). 3,116 residents in the ACS 2020-2024 5-year estimates (±394); the 2020 Census counted 3,466.
Residents, 2020-2024
3,116
±394 (90% margin)
2020 Census count: 3,466
Median household income
$125,703
±$20,013 (90% margin)
Waukesha County: $106,076
Median home value
$453,000
±$42,622 (90% margin)
Waukesha County: $398,200
Median gross rent
$1,375
±$766 (90% margin)
Waukesha County: $1,356
Where is Census Tract 2045.03?
Census Tract 2045.03 is one of 98 census tracts in Waukesha County, Wisconsin. It covers 2.06 square miles of land, 1,687 residents per square mile in 2020. Its GEOID, 55133204503, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Okauchee Lake | 95% |
| Oconomowoc (town) | 95% |
| Oconomowoc Lake | 5% |
4 census tracts border Census Tract 2045.03: Tract 2037.03 ($149,189), Tract 2041 ($148,889), Tract 2043.01 ($122,992) and Tract 2045.04 ($102,596). 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 2045.03?
The 2020-2024 American Community Survey puts Census Tract 2045.03's population at 3,116 (±394) in 1,387 households; the 2020 Census counted 3,466 residents and 1,727 housing units.
| Measure | Tract 2045.03 | Okauchee Lake |
|---|---|---|
| Total population | 3,116 ±394 | 4,733 |
| Households | 1,387 ±190 | 1,960 |
| Average household size | 2.25 ±0.20 | 2.41 |
| Housing units | 1,704 ±213 | 2,324 |
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 2045.03?
The median resident of Census Tract 2045.03 is 55.5 years old; 14.4% are under 18 and 32.4% are 65 or older. The largest group is non-Hispanic white residents at 93.0%, then Hispanic or Latino residents (of any race) at 3.8%.
| Measure | Tract 2045.03 | Okauchee Lake |
|---|---|---|
| Median age | 55.5 ±5.4 | 51.9 |
| Under 18 years | 14.4% ±4.9 pts | 18.1% |
| 65 years and over | 32.4% ±7.0 pts | 26.4% |
| Hispanic or Latino (any race) | 3.8% ±3.7 pts | 2.6% |
| White alone, not Hispanic | 93.0% ±4.2 pts | 94.9% |
| Black or African American alone, not Hispanic | 1.2% ±1.8 pts | 0.8% |
| Asian alone, not Hispanic | 0.0% ±0.7 pts | 0.2% |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±0.7 pts | 0.0% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.7 pts | 0.0% |
| Two or more races, not Hispanic | 2.1% ±1.8 pts | 1.5% |
| Some other race alone, not Hispanic | 0.0% ±0.7 pts | 0.0% |
| Born outside the United States | 0.7% ±0.7 pts | 1.2% |
| Speak a language other than English at home (age 5+) | 2.9% ±3.5 pts | 2.2% |
| Civilian veterans (age 18+) | 8.0% ±4.0 pts | 6.5% |
| With a disability | 7.1% ±2.6 pts | 7.5% |
| No health insurance coverage | 7.0% ±4.7 pts | 5.3% |
| High school graduate or higher (age 25+) | 99.6% ±0.6 pts | 99.2% |
| Bachelor's degree or higher (age 25+) | 49.9% ±8.7 pts | 52.2% |
| Graduate or professional degree (age 25+) | 16.3% ±5.4 pts | 16.1% |
| Lived in the same house a year earlier | 92.3% ±5.1 pts | 93.1% |
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 2045.03 earn?
Half of the 1,387 households in Census Tract 2045.03 earn less than $125,703 a year (±$20,013), against $106,076 across Waukesha County: 26th highest of the county's 98 tracts with a reliable estimate.
| Measure | Tract 2045.03 | Okauchee Lake |
|---|---|---|
| Median household income | $125,703 ±$20,013 | $131,170 |
| Mean household income | $137,677 ±$14,328 | $152,703 |
| Per capita income | $60,153 ±$7,115 | $63,582 |
| People below the poverty line | 2.3% ±2.0 pts | 2.3% |
| Children under 18 below the poverty line | 0.0% ±4.9 pts | 2.9% |
| Households receiving SNAP | 0.1% ±0.2 pts | 0.8% |
| Households with a computer | 93.9% ±5.1 pts | 95.7% |
| Households with a broadband subscription | 93.3% ±5.2 pts | 94.5% |
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 Census Tract 2045.03?
Owners occupy 84.6% of Census Tract 2045.03's occupied homes and renters 15.4%. The median owner-occupied home is valued at $453,000 by its owner (±$42,622). The median renter pays $1,375 a month including utilities.
| Measure | Tract 2045.03 | Okauchee Lake |
|---|---|---|
| Median home value (owner-occupied) | $453,000 ±$42,622 | $497,500 |
| Median gross rent | $1,375 ±$766 | $1,391 |
| Renters paying 35% or more of income on rent | 0.0% ±10.8 pts | 0.0% |
| Median monthly owner costs, with a mortgage | $2,290 ±$213 | $2,438 |
| Owner-occupied homes | 84.6% ±6.1 pts | 89.1% |
| Renter-occupied homes | 15.4% ±6.1 pts | 10.9% |
| Housing units | 1,704 ±213 | 2,324 |
| Single-family detached homes | 79.9% ±5.5 pts | 85.0% |
| Mobile homes | 0.0% ±1.3 pts | 0.3% |
| Built 2020 or later | 3.2% ±2.5 pts | 2.7% |
| Built 2010 to 2019 | 5.2% ±2.9 pts | 8.3% |
| Built 1939 or earlier | 19.8% ±7.8 pts | 14.9% |
| Households with no vehicle | 4.9% ±4.3 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 2045.03 get to work?
79.9% of Census Tract 2045.03's workers drive alone and 13.7% work from home. The average trip to work takes 20.1 minutes.
| Measure | Tract 2045.03 | Okauchee Lake |
|---|---|---|
| In the labor force (age 16+) | 63.1% ±7.5 pts | 64.5% |
| Unemployment rate | 1.6% ±2.4 pts | 1.3% |
| Drove alone to work | 79.9% ±7.1 pts | 75.5% |
| Carpooled | 5.3% ±3.6 pts | 4.7% |
| Public transportation | 0.0% ±1.3 pts | 0.0% |
| Walked | 0.5% ±1.0 pts | 0.4% |
| Worked from home | 13.7% ±6.0 pts | 18.4% |
| Mean travel time to work | 20.1 min ±2.7 | 21.0 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 2045.03 compare with the other tracts in Waukesha County?
Among Waukesha County's tracts with a reliable estimate, Census Tract 2045.03 ranks as shown below (1 = highest).
| Measure | In Waukesha County |
|---|---|
| Population | 75th of 98 |
| Residents per square mile | 34th of 98 |
| Median household income | 26th of 98 |
| Per capita income | 38th of 97 |
| Median home value | 24th of 98 |
| Median gross rent | 53rd of 90 |
| Bachelor's degree or higher | 42nd of 98 |
| Median age | 4th of 98 |
| Owner-occupied share | 41st of 98 |
The tracts next to it on Waukesha County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 2042.02 | 23rd | $128,065±$13,529 · within the margin of this tract |
| 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 |
| Tract 2037.04 | 27th | $125,368±$27,973 · within the margin of this tract |
| 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 |
"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 2045.03?
4 of the 18 figures for Census Tract 2045.03 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