Village · Wisconsin
Sussex, Wisconsin
Sussex, village, in Waukesha County, Wisconsin. Sussex had 12,779 residents on July 1, 2025 by the Census Bureau's estimate, up 10.1% since 2020; the 2020 Census counted 11,487 and the ACS 2020-2024 5-year estimates put it at 12,066 (±25). GEOID 5578750.
Residents, July 2025 estimate
12,779
Census Bureau estimate (no margin published)
2020 Census count: 11,487 · ACS 2020-2024: 12,066 ±25
Median household income
$119,041
±$14,736 (90% margin)
Wisconsin: $77,485
Median home value
$430,600
±$20,165 (90% margin)
Wisconsin: $266,500
Median gross rent
$1,369
±$70 (90% margin)
Wisconsin: $1,087
Where is Sussex and what county is it in?
Sussex is a village in Waukesha County, Wisconsin. It covers 8.4 square miles of land, 1,360 residents per square mile in 2020.
Sussex is in the Milwaukee-Waukesha, WI metropolitan statistical area, which takes in 4 counties (Census Bureau delineation, July 2023).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Sussex, and is it growing?
The Census Bureau estimates that 12,779 people lived in Sussex on July 1, 2025, up 10.1% since 2020, faster than Wisconsin (+1.3%). The 2020 Census counted 11,487 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 12,066 (±25).
| Measure | Sussex | Waukesha County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 12,066 ±25 | 411,762 | +1,233 |
| Households | 4,749 ±263 | 168,658 | +558 |
| Average household size | 2.54 ±0.14 | 2.42 | no clear change |
| Housing units | 4,820 ±253 | 175,591 | +483 |
Sussex's population since 2000
From 8,828 in 2000 to 12,779 in 2025: up 44.8%. The 2000, 2010 and 2020 figures are census counts, each for Sussex as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Sussex?
The median resident of Sussex is 39.2 years old; 25.0% are under 18 and 12.9% are 65 or older. The largest group is non-Hispanic white residents at 83.5%, then non-Hispanic Asian residents at 8.0%. 5.6% of residents were born outside the United States.
| Measure | Sussex | Waukesha County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 39.2 ±2.6 | 43.5 | no clear change |
| Under 18 years | 25.0% ±2.5 pts | 21.0% | – |
| 65 years and over | 12.9% ±2.0 pts | 20.5% | – |
| Male | 50.9% ±2.2 pts | 49.6% | – |
| Hispanic or Latino (any race) | 1.9% ±1.0 pts | 5.7% | no clear change |
| White alone, not Hispanic | 83.5% ±4.7 pts | 85.0% | −9.1 pts |
| Black or African American alone, not Hispanic | 1.9% ±1.5 pts | 1.5% | – |
| Asian alone, not Hispanic | 8.0% ±4.9 pts | 3.9% | no clear change |
| American Indian and Alaska Native alone, not Hispanic | 0.1% ±0.1 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.2 pts | 0.0% | – |
| Two or more races, not Hispanic | 4.6% ±2.3 pts | 3.2% | – |
| Some other race alone, not Hispanic | 0.0% ±0.2 pts | 0.5% | – |
| Born outside the United States | 5.6% ±2.4 pts | 5.5% | no clear change |
| Speak a language other than English at home (age 5+) | 7.5% ±3.7 pts | 7.7% | – |
| Civilian veterans (age 18+) | 5.0% ±1.5 pts | 5.5% | – |
| With a disability | 7.6% ±1.8 pts | 9.7% | – |
| No health insurance coverage | 2.1% ±1.0 pts | 3.1% | no clear change |
| High school graduate or higher (age 25+) | 96.5% ±1.8 pts | 97.2% | – |
| Bachelor's degree or higher (age 25+) | 51.2% ±4.1 pts | 48.9% | no clear change |
| Graduate or professional degree (age 25+) | 18.0% ±4.0 pts | 16.8% | – |
| Lived in the same house a year earlier | 83.4% ±5.2 pts | 90.7% | – |
| Moved from another state in the past year | 0.7% ±0.5 pts | 1.3% | – |
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 Sussex earn?
Half of Sussex's 4,749 households earn less than $119,041 a year (±$14,736), against $106,076 in Waukesha County and $77,485 in Wisconsin. In 2015-2019 it was $112,469 in 2024 dollars; the margins of error cannot tell the two periods apart. 4.5% of residents live below the poverty line.
| Measure | Sussex | Waukesha County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $119,041 ±$14,736 | $106,076 | no clear change |
| Mean household income | $148,981 ±$14,920 | $137,605 | – |
| Per capita income | $60,001 ±$6,149 | $58,126 | +$10,011 |
| People below the poverty line | 4.5% ±1.7 pts | 5.2% | no clear change |
| Children under 18 below the poverty line | 2.8% ±2.4 pts | 4.9% | – |
| Households receiving SNAP | 4.9% ±1.9 pts | 4.4% | – |
| Households with a computer | 97.6% ±1.2 pts | 96.5% | – |
| Households with a broadband subscription | 95.0% ±1.6 pts | 94.0% | – |
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 Sussex?
Owners occupy 70.3% of Sussex's occupied homes and renters 29.7%. The median owner-occupied home is valued at $430,600 by its owner (±$20,165). The median renter pays $1,369 a month including utilities, and 31.1% of renters pay 35% or more of their income on rent.
| Measure | Sussex | Waukesha County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $430,600 ±$20,165 | $398,200 | +$78,252 |
| Median gross rent | $1,369 ±$70 | $1,356 | +$154 |
| Renters paying 35% or more of income on rent | 31.1% ±9.0 pts | 35.6% | no clear change |
| Median monthly owner costs, with a mortgage | $2,260 ±$136 | $2,144 | – |
| Owner-occupied homes | 70.3% ±3.2 pts | 76.0% | no clear change |
| Renter-occupied homes | 29.7% ±3.2 pts | 24.0% | – |
| Housing units | 4,820 ±253 | 175,591 | +483 |
| Homeowner vacancy rate | 0.0% ±0.7 pts | 0.3% | – |
| Rental vacancy rate | 2.2% ±3.5 pts | 4.0% | – |
| Single-family detached homes | 62.3% ±3.5 pts | 69.0% | – |
| Mobile homes | 0.2% ±0.3 pts | 0.6% | – |
| Built 2020 or later | 7.4% ±2.6 pts | 1.7% | – |
| Built 2010 to 2019 | 12.2% ±2.5 pts | 8.1% | – |
| Built 1939 or earlier | 0.7% ±0.5 pts | 7.1% | – |
| Households with no vehicle | 2.8% ±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 many new homes is Sussex building?
Builders took permits for 78 new housing units in Sussex in 2025 (78 in single-family houses), 6.1 per 1,000 residents against 4.3 across Wisconsin.
Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.
Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Sussex work and get to work?
77.4% of Sussex's workers drive alone and 17.4% work from home. The average trip to work takes 24.6 minutes. The unemployment rate in 2020-2024 averaged 3.1%.
| Measure | Sussex | Waukesha County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 72.8% ±3.1 pts | 66.6% | – |
| Unemployment rate | 3.1% ±1.3 pts | 2.3% | no clear change |
| Drove alone to work | 77.4% ±4.2 pts | 76.1% | – |
| Carpooled | 4.1% ±1.7 pts | 5.1% | – |
| Public transportation | 0.8% ±0.7 pts | 0.2% | – |
| Walked | 0.3% ±0.4 pts | 1.0% | – |
| Worked from home | 17.4% ±4.5 pts | 16.8% | +14.0 pts |
| Mean travel time to work | 24.6 min ±2.2 | 22.6 min | no clear change |
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 census tracts are in Sussex?
3 census tracts lie mostly in Sussex, and 2 more reach into it (2020 census blocks). Their median household incomes run from $79,277 (Tract 2034.04) to $143,610 (Tract 2034.03).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 2034.03Waukesha County | 5,900 | $143,610 |
| Tract 2034.02Waukesha County | 3,992 | $92,485 |
| Tract 2034.04Waukesha County | 3,537 | $79,277 |
| Tract 2034.06Waukesha County | 7,646 | $137,188 |
| Tract 2033.04Waukesha County | 5,210 | $117,167 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Sussex) · Census block assignment files
How does Sussex compare with other places in Wisconsin?
By the Census Bureau's July 2025 estimates, Sussex is the 2,706th-most populous of the 19,476 U.S. incorporated places that have one and the 79th-most populous of 608 in Wisconsin.
Sussex ranks 81st of 914 places in Wisconsin with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 79th | 608 |
| Growth 2020-2025 (PEP) | 33rd | 884 |
| Residents per square mile | 128th | 914 |
| Median household income | 81st | 914 |
| Per capita income | 71st | 911 |
| Median home value | 72nd | 913 |
| Median gross rent | 100th | 825 |
| Poverty rate | 548th | 706 |
| Bachelor's degree or higher | 51st | 914 |
| Median age | 719th | 914 |
| Owner-occupied share | 681st | 914 |
| Work from home | 144th | 827 |
| Travel time to work | 389th | 914 |
Sussex's figures with every place in Wisconsin (CSV)
Every place in Wisconsin, sortable · Compare Sussex with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Sussex?
12 of the 57 figures for Sussex 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.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. 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 · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Sussex are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' public schools in Sussex.