Village · Wisconsin
Cottage Grove, Wisconsin
Cottage Grove, village, in Dane County, Wisconsin. Cottage Grove had 8,930 residents on July 1, 2025 by the Census Bureau's estimate, up 22.4% since 2020; the 2020 Census counted 7,303 and the ACS 2020-2024 5-year estimates put it at 8,513 (±20). GEOID 5517175.
Residents, July 2025 estimate
8,930
Census Bureau estimate (no margin published)
2020 Census count: 7,303 · ACS 2020-2024: 8,513 ±20
Median household income
$139,313
±$10,732 (90% margin)
Wisconsin: $77,485
Median home value
$449,700
±$18,350 (90% margin)
Wisconsin: $266,500
Median gross rent
$1,531
±$195 (90% margin)
Wisconsin: $1,087
Where is Cottage Grove and what county is it in?
Cottage Grove is a village in Dane County, Wisconsin. It covers 4.7 square miles of land, 1,557 residents per square mile in 2020.
Cottage Grove is in the Madison, 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 Cottage Grove, and is it growing?
The Census Bureau estimates that 8,930 people lived in Cottage Grove on July 1, 2025, up 22.4% since 2020, faster than Wisconsin (+1.3%). The 2020 Census counted 7,303 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 8,513 (±20).
| Measure | Cottage Grove | Dane County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 8,513 ±20 | 572,674 | +1,493 |
| Households | 3,549 ±207 | 251,529 | +1,141 |
| Average household size | 2.38 ±0.14 | 2.21 | −0.52 |
| Housing units | 3,585 ±211 | 261,061 | +1,076 |
Cottage Grove's population since 2000
From 4,059 in 2000 to 8,930 in 2025: up 120.0%. The 2000, 2010 and 2020 figures are census counts, each for Cottage Grove 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 Cottage Grove?
The median resident of Cottage Grove is 37.5 years old; 23.2% are under 18 and 11.8% are 65 or older. The largest group is non-Hispanic white residents at 84.8%, then non-Hispanic Asian residents at 6.1%. 6.0% of residents were born outside the United States.
| Measure | Cottage Grove | Dane County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 37.5 ±3.7 | 35.7 | no clear change |
| Under 18 years | 23.2% ±3.8 pts | 19.7% | – |
| 65 years and over | 11.8% ±3.9 pts | 15.1% | – |
| Male | 50.9% ±3.6 pts | 50.0% | – |
| Hispanic or Latino (any race) | 5.0% ±3.8 pts | 7.8% | – |
| White alone, not Hispanic | 84.8% ±6.5 pts | 75.8% | no clear change |
| Black or African American alone, not Hispanic | 1.6% ±1.9 pts | 5.1% | – |
| Asian alone, not Hispanic | 6.1% ±4.7 pts | 6.1% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±0.3 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.3 pts | 0.0% | – |
| Two or more races, not Hispanic | 2.5% ±1.6 pts | 4.6% | – |
| Some other race alone, not Hispanic | 0.0% ±0.3 pts | 0.4% | – |
| Born outside the United States | 6.0% ±3.6 pts | 9.0% | no clear change |
| Speak a language other than English at home (age 5+) | 8.0% ±5.1 pts | 11.5% | – |
| Civilian veterans (age 18+) | 7.5% ±3.9 pts | 4.3% | – |
| With a disability | 6.9% ±2.3 pts | 9.2% | – |
| No health insurance coverage | 1.0% ±1.0 pts | 3.6% | – |
| High school graduate or higher (age 25+) | 98.7% ±1.2 pts | 96.4% | – |
| Bachelor's degree or higher (age 25+) | 60.4% ±5.7 pts | 55.3% | +10.0 pts |
| Graduate or professional degree (age 25+) | 23.2% ±4.9 pts | 22.2% | – |
| Lived in the same house a year earlier | 84.8% ±5.1 pts | 81.4% | – |
| Moved from another state in the past year | 4.3% ±4.2 pts | 4.1% | – |
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 Cottage Grove earn?
Half of Cottage Grove's 3,549 households earn less than $139,313 a year (±$10,732), against $89,975 in Dane County and $77,485 in Wisconsin. In 2015-2019 it was $122,235 in 2024 dollars; the margins of error cannot tell the two periods apart. 3.7% of residents live below the poverty line.
| Measure | Cottage Grove | Dane County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $139,313 ±$10,732 | $89,975 | no clear change |
| Mean household income | $143,434 ±$12,389 | $119,709 | – |
| Per capita income | $58,531 ±$4,950 | $53,181 | +$12,268 |
| People below the poverty line | 3.7% ±2.3 pts | 10.6% | – |
| Children under 18 below the poverty line | 1.9% ±2.8 pts | 8.7% | – |
| Households receiving SNAP | 3.3% ±2.4 pts | 8.1% | – |
| Households with a computer | 99.2% ±1.3 pts | 97.4% | – |
| Households with a broadband subscription | 97.4% ±2.3 pts | 92.9% | – |
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 Cottage Grove?
Owners occupy 69.9% of Cottage Grove's occupied homes and renters 30.1%. The median owner-occupied home is valued at $449,700 by its owner (±$18,350). The median renter pays $1,531 a month including utilities, and 28.4% of renters pay 35% or more of their income on rent.
| Measure | Cottage Grove | Dane County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $449,700 ±$18,350 | $394,800 | +$108,182 |
| Median gross rent | $1,531 ±$195 | $1,398 | no clear change |
| Renters paying 35% or more of income on rent | 28.4% ±13.3 pts | 38.6% | no clear change |
| Median monthly owner costs, with a mortgage | $2,620 ±$104 | $2,200 | – |
| Owner-occupied homes | 69.9% ±6.0 pts | 57.1% | −8.9 pts |
| Renter-occupied homes | 30.1% ±6.0 pts | 42.9% | – |
| Housing units | 3,585 ±211 | 261,061 | +1,076 |
| Homeowner vacancy rate | 0.0% ±0.9 pts | 0.4% | – |
| Rental vacancy rate | 3.3% ±5.1 pts | 2.9% | – |
| Single-family detached homes | 61.0% ±8.6 pts | 50.5% | – |
| Mobile homes | 0.0% ±0.6 pts | 0.8% | – |
| Built 2020 or later | 8.0% ±4.1 pts | 2.4% | – |
| Built 2010 to 2019 | 13.8% ±5.4 pts | 13.7% | – |
| Built 1939 or earlier | 5.7% ±4.9 pts | 10.4% | – |
| Households with no vehicle | 4.4% ±3.3 pts | 8.2% | – |
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 Cottage Grove building?
Builders took permits for 214 new housing units in Cottage Grove in 2025 (44 in single-family houses), 24.0 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 Cottage Grove work and get to work?
77.5% of Cottage Grove's workers drive alone and 17.4% work from home. The average trip to work takes 24.8 minutes.
| Measure | Cottage Grove | Dane County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 78.5% ±4.3 pts | 70.3% | – |
| Unemployment rate | 0.9% ±1.0 pts | 2.4% | – |
| Drove alone to work | 77.5% ±5.8 pts | 63.8% | – |
| Carpooled | 4.5% ±2.4 pts | 5.6% | – |
| Public transportation | 0.0% ±0.4 pts | 2.9% | – |
| Walked | 0.4% ±0.5 pts | 4.9% | – |
| Worked from home | 17.4% ±5.6 pts | 20.0% | +11.9 pts |
| Mean travel time to work | 24.8 min ±2.3 | 20.6 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 Cottage Grove?
2 census tracts lie mostly in Cottage Grove, and 2 more reach into it (2020 census blocks). Their median household incomes run from $120,583 (Tract 120.04) to $142,762 (Tract 120.03).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 120.03Dane County | 7,086 | $142,762 |
| Tract 120.04Dane County | 3,114 | $120,583 |
| Tract 117Dane County | 4,079 | $136,923 |
| Tract 120.02Dane County | 4,977 | $113,401 |
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 Cottage Grove) · Census block assignment files
How does Cottage Grove compare with other places in Wisconsin?
By the Census Bureau's July 2025 estimates, Cottage Grove is the 3,475th-most populous of the 19,476 U.S. incorporated places that have one and the 109th-most populous of 608 in Wisconsin.
Cottage Grove ranks 29th 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 | 109th | 608 |
| Growth 2020-2025 (PEP) | 5th | 884 |
| Residents per square mile | 103rd | 914 |
| Median household income | 29th | 914 |
| Per capita income | 90th | 911 |
| Median home value | 55th | 913 |
| Median gross rent | 49th | 825 |
| Poverty rate | 609th | 706 |
| Bachelor's degree or higher | 24th | 914 |
| Median age | 800th | 914 |
| Owner-occupied share | 687th | 914 |
| Work from home | 144th | 827 |
| Travel time to work | 379th | 914 |
Cottage Grove's figures with every place in Wisconsin (CSV)
Every place in Wisconsin, sortable · Compare Cottage Grove 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 Cottage Grove?
18 of the 57 figures for Cottage Grove 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 Cottage Grove 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 Cottage Grove.