Sun Prairie Flag

Sun Prairie

County:
Dane County
County Seat:
No
Area (mi²):
13.094
State:
Wisconsin

Sun Prairie is a city located in Dane County, Wisconsin. Sun Prairie has a 2025 population of 39,101. Sun Prairie is currently growing at a rate of 1.57% annually and its population has increased by 8.39% since the most recent census, which recorded a population of 36,073 in 2020.

The average household income in Sun Prairie is $108,478 with a poverty rate of 6.13%.The median age in Sun Prairie is 36.9 years: 34.2 years for males, and 39.1 years for females.

39.1K
Total Population
2,986
Density (mi²)
606 1.57%
Growth

Sun Prairie Population

Sun Prairie Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Sun Prairie includes 76.71% White, 8.2% Black or African American, 7.35% Asian, and smaller percentages for other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White27,96376.71%
Black or African American2,9908.2%
Asian2,6797.35%
Two or more races2,2596.2%
Other race4311.18%
Native American910.25%
Native Hawaiian or Pacific Islander420.12%

Sun Prairie Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Sun Prairie's average per capita income is $61,854. Household income levels show a median of $90,521. The poverty rate stands at 6.13%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median
Mean
Married Families$128,148-
Families$113,086$129,716
Households$90,521$108,478
Non Families$58,075$69,904

$61,854

Average Income

$90,521

Median Household Income

6.13%

Poverty Rate

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)