Sun Prairie, Wisconsin Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Sun Prairie, Wisconsin is 36,455 as of the 2023 American Community Survey, making it the 23rd-largest city in Wisconsin. The median household income is $90,521, the median home value is $339,800, and the median age is 36.9.
The population has grown 32.5% since 2010 (29,626 → 39,253).
36,455
Population
2784
People / sq mi
$90,521
Median Income
$339,800
Median Home Value
Sun Prairie covers 13.1 sq mi of land at 2784 people per square mile.
About Sun Prairie, WI
Sun Prairie is a city in Wisconsin with a population of 36,455. It ranks #23 among cities in Wisconsin by population. The median age is 36.9, younger than the national median. The population is 48.6% male and 51.4% female.
The median household income in Sun Prairie is $90,521, above the US median of $74,580. 4.1% of residents live below the federal poverty level. Home values sit at a median of $339,800, with monthly rent averaging $1,374. The homeownership rate of 61.8% is lower than the national rate of 64.8%.
Educational attainment in Sun Prairie reflects 50.9% of adults 25 and older holding a bachelor's degree or higher, above the national average of 34.3%. Roughly 18.3% of workers primarily work from home, noticeably above the national work-from-home rate of 14.2%. The average commute is 22.6 minutes each way.
Sun Prairie city Population History (2010-2024)
The city of Sun Prairie city had a population of 29,626 in 2010 and 39,253 in 2024, a 32.5% growth over 14 years. The peak was 39,253 in 2024. Average annual growth rate: 2.03%.
39,253
Population (2024)
29,626
Population (2010)
39,253
Peak (2024)
2.03%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 29,626 |
| 2011 | 30,032 |
| 2012 | 30,538 |
| 2013 | 30,998 |
| 2014 | 31,727 |
| 2015 | 32,295 |
| 2016 | 32,790 |
| 2017 | 32,966 |
| 2018 | 33,948 |
| 2019 | 34,661 |
| 2020 | 36,008 |
| 2021 | 36,650 |
| 2022 | 37,497 |
| 2023 | 38,360 |
| 2024 | 39,253 |
Race & Ethnicity
| White | 76.7% |
| Black or African American | 8.2% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.4% |
| Two or More Races | 0.0% |
Economy & Income
$90,521
Median Household Income
$45,715
Per Capita Income
4.1%
Poverty Rate
1.5%
Unemployment Rate
Housing
$339,800
Median Home Value
$1,374
Median Rent
61.8%
Owner-Occupied
Education
97.3%
High School+
50.9%
Bachelor's+
Commute
0.7%
Drive Alone
71.7%
Public Transit
18.3%
Work From Home
22.6 min
Avg Commute
Community Profile
29.7%
Foreign Born
89.0%
Non-English at Home
6.4%
Veterans
8.7%
With Disability
98.0%
Health Insurance
96.6%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 25.8% |
| Finance, Insurance & Real Estate | 15.2% |
| Information | 9.9% |
| Manufacturing | 9.0% |
| Education, Health Care & Social Services | 5.9% |
| Public Administration | 5.3% |
| Arts, Entertainment & Food Services | 4.6% |
| Retail Trade | 4.3% |
| Construction | 3.9% |
| Transportation & Warehousing | 1.3% |
| Agriculture & Mining | 0.8% |
Largest cities in Wisconsin
Largest counties in Wisconsin
Part of Wisconsin
Metro areas in Wisconsin
City rankings
Frequently Asked Questions
Sun Prairie, Wisconsin has a population of 36,455 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 23rd-largest city in Wisconsin.
The median household income in Sun Prairie, Wisconsin is $90,521, with 4.1% of residents living below the federal poverty level.
The median home value in Sun Prairie, Wisconsin is $339,800, with median monthly rent at $1,374 and a homeownership rate of 61.8%.
The median age in Sun Prairie, Wisconsin is 36.9 years. The population is 48.6% male and 51.4% female.
The population has grown 32.5% since 2010 (29,626 → 39,253).
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.