Census tract · Dane County
Census Tract 115.05, Dane County, Wisconsin
Census Tract 115.05, GEOID 55025011505, in Dane County, Wisconsin, entirely within Sun Prairie. 4,227 residents in the ACS 2020-2024 5-year estimates (±362); the 2020 Census counted 4,400.
Residents, 2020-2024
4,227
±362 (90% margin)
2020 Census count: 4,400
Median household income
$71,016
±$3,795 (90% margin)
Dane County: $89,975
Median home value
$287,600
±$12,130 (90% margin)
Dane County: $394,800
Median gross rent
$1,286
±$108 (90% margin)
Dane County: $1,398
Where is Census Tract 115.05?
Census Tract 115.05 is one of 125 census tracts in Dane County, Wisconsin. It covers 0.99 square miles of land, 4,453 residents per square mile in 2020. Its GEOID, 55025011505, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Sun Prairie | 100% |
4 census tracts border Census Tract 115.05: Tract 115.04 ($105,451), Tract 115.06 ($68,924), Tract 115.08 ($107,038) and Tract 116 ($96,351). 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 115.05?
The 2020-2024 American Community Survey puts Census Tract 115.05's population at 4,227 (±362) in 1,791 households; the 2020 Census counted 4,400 residents and 1,850 housing units.
| Measure | Tract 115.05 | Sun Prairie |
|---|---|---|
| Total population | 4,227 ±362 | 37,570 |
| Households | 1,791 ±153 | 15,887 |
| Average household size | 2.32 ±0.13 | 2.35 |
| Housing units | 1,830 ±137 | 16,195 |
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 115.05?
The median resident of Census Tract 115.05 is 33.7 years old; 28.2% are under 18 and 9.4% are 65 or older. The largest group is non-Hispanic white residents at 64.3%, then non-Hispanic Black residents at 17.2%. 7.3% of residents were born outside the United States.
| Measure | Tract 115.05 | Sun Prairie |
|---|---|---|
| Median age | 33.7 ±3.2 | 36.7 |
| Under 18 years | 28.2% ±3.1 pts | 25.5% |
| 65 years and over | 9.4% ±2.9 pts | 14.2% |
| Hispanic or Latino (any race) | 8.6% ±5.9 pts | 4.7% |
| White alone, not Hispanic | 64.3% ±7.9 pts | 73.2% |
| Black or African American alone, not Hispanic | 17.2% ±6.6 pts | 8.5% |
| Asian alone, not Hispanic | 3.7% ±3.8 pts | 8.6% |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±0.5 pts | 0.0% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.5 pts | 0.2% |
| Two or more races, not Hispanic | 6.2% ±3.6 pts | 4.4% |
| Some other race alone, not Hispanic | 0.0% ±0.5 pts | 0.4% |
| Born outside the United States | 7.3% ±3.8 pts | 8.9% |
| Speak a language other than English at home (age 5+) | 10.6% ±5.6 pts | 11.3% |
| Civilian veterans (age 18+) | 4.9% ±2.7 pts | 6.1% |
| With a disability | 8.0% ±3.2 pts | 10.2% |
| No health insurance coverage | 3.1% ±2.4 pts | 1.6% |
| High school graduate or higher (age 25+) | 95.7% ±2.5 pts | 97.3% |
| Bachelor's degree or higher (age 25+) | 32.0% ±7.3 pts | 50.9% |
| Graduate or professional degree (age 25+) | 10.0% ±3.7 pts | 17.6% |
| Lived in the same house a year earlier | 86.8% ±4.5 pts | 85.5% |
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 115.05 earn?
Half of the 1,791 households in Census Tract 115.05 earn less than $71,016 a year (±$3,795), against $89,975 across Dane County: 95th highest of the county's 122 tracts with a reliable estimate. 13.5% of residents live below the poverty line.
| Measure | Tract 115.05 | Sun Prairie |
|---|---|---|
| Median household income | $71,016 ±$3,795 | $90,942 |
| Mean household income | $81,656 ±$6,423 | $111,947 |
| Per capita income | $35,493 ±$3,281 | $47,609 |
| People below the poverty line | 13.5% ±7.9 pts | 6.2% |
| Children under 18 below the poverty line | 27.5% ±19.2 pts | 7.2% |
| Households receiving SNAP | 11.0% ±5.0 pts | 7.2% |
| Households with a computer | 96.6% ±2.4 pts | 97.1% |
| Households with a broadband subscription | 94.7% ±3.0 pts | 93.7% |
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 115.05?
Owners occupy 49.4% of Census Tract 115.05's occupied homes and renters 50.6%. The median owner-occupied home is valued at $287,600 by its owner (±$12,130). The median renter pays $1,286 a month including utilities, and 37.1% of renters pay 35% or more of their income on rent.
| Measure | Tract 115.05 | Sun Prairie |
|---|---|---|
| Median home value (owner-occupied) | $287,600 ±$12,130 | $365,700 |
| Median gross rent | $1,286 ±$108 | $1,419 |
| Renters paying 35% or more of income on rent | 37.1% ±13.4 pts | 39.4% |
| Median monthly owner costs, with a mortgage | $1,694 ±$84 | $2,085 |
| Owner-occupied homes | 49.4% ±7.7 pts | 60.8% |
| Renter-occupied homes | 50.6% ±7.7 pts | 39.2% |
| Housing units | 1,830 ±137 | 16,195 |
| Single-family detached homes | 47.9% ±7.2 pts | 50.1% |
| Mobile homes | 0.0% ±1.2 pts | 0.0% |
| Built 2020 or later | 0.5% ±1.1 pts | 2.8% |
| Built 2010 to 2019 | 7.9% ±4.3 pts | 21.6% |
| Built 1939 or earlier | 11.5% ±4.6 pts | 3.5% |
| Households with no vehicle | 12.8% ±6.1 pts | 5.1% |
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 115.05 get to work?
69.2% of Census Tract 115.05's workers drive alone and 18.3% work from home. The average trip to work takes 23.7 minutes. The unemployment rate in 2020-2024 averaged 4.6%.
| Measure | Tract 115.05 | Sun Prairie |
|---|---|---|
| In the labor force (age 16+) | 80.9% ±4.2 pts | 72.8% |
| Unemployment rate | 4.6% ±2.1 pts | 2.3% |
| Drove alone to work | 69.2% ±6.2 pts | 71.2% |
| Carpooled | 6.4% ±3.2 pts | 5.3% |
| Public transportation | 0.0% ±0.9 pts | 0.5% |
| Walked | 4.8% ±3.9 pts | 1.5% |
| Worked from home | 18.3% ±5.5 pts | 19.7% |
| Mean travel time to work | 23.7 min ±2.9 | 22.0 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 115.05 compare with the other tracts in Dane County?
Among Dane County's tracts with a reliable estimate, Census Tract 115.05 ranks as shown below (1 = highest).
| Measure | In Dane County | In Sun Prairie |
|---|---|---|
| Population | 68th of 123 | 7th of 7 |
| Residents per square mile | 31st of 123 | 1st of 7 |
| Median household income | 95th of 122 | 6th of 7 |
| Per capita income | 112th of 122 | 7th of 7 |
| Median home value | 107th of 117 | 7th of 7 |
| Median gross rent | 79th of 120 | 5th of 7 |
| Poverty rate | 29th of 78 | 1st of 3 |
| Bachelor's degree or higher | 115th of 121 | 7th of 7 |
| Median age | 92nd of 123 | 7th of 7 |
| Owner-occupied share | 82nd of 115 | 6th of 7 |
The tracts next to it on Dane County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 111.03 | 92nd | $74,783±$17,001 · within the margin of this tract |
| Tract 30.02 | 93rd | $71,941±$17,749 · within the margin of this tract |
| Tract 26.02 | 94th | $71,455±$17,266 · within the margin of this tract |
| Tract 115.05 | 95th | $71,016±$3,795 |
| Tract 114.07 | 96th | $70,045±$23,263 · within the margin of this tract |
| Tract 115.06 | 97th | $68,924±$3,369 · within the margin of this tract |
| Tract 17.07 | 98th | $67,555±$9,076 · 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 115.05?
2 of the 18 figures for Census Tract 115.05 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