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 2026 population of 40,875. Sun Prairie is currently growing at a rate of 2.02% annually and its population has increased by 13.52% since the most recent census, which recorded a population of 36,008 in 2020.

The median household income in Sun Prairie is $90,942 with a poverty rate of 6.19%. The median age in Sun Prairie is 36.7 years: 33.5 years for males, and 39 years for females. For every 100 females there are 94.4 males.

40.9K
Total Population
3,122
Density (mi²)
811 2.02%
Growth

Sun Prairie Population

Sun Prairie Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202640,8758112.02%
202540,0648112.07%
202439,2538932.33%
202338,3608632.3%
202237,4978472.31%
202136,6506781.88%
202036,0081,2853.7%
201934,7237452.19%
201833,9789862.99%
201732,9921740.53%
201632,8184991.54%
201532,3195741.81%
201431,7457332.36%
201331,0124651.52%
201230,5475101.7%
201130,0374101.38%
201029,6272630.9%
200020,3695,03632.84%
199015,3332,40218.58%
198012,9312,99630.16%
19709,9355,927147.88%
19604,0083,308472.57%
190070000%

Median Age

Overall: 36.7 years
Female: 39 years
Male: 33.5 years

Sun Prairie Adults

There are 27,991 adults, (5,317 of whom are seniors) in Sun Prairie.

Sex Ratio

Female: 19,323 (51.4%)
Male: 18,247 (48.6%)

Demographics

The racial composition of Sun Prairie includes 74.21% White, 8.76% Black or African American, 8.69% Asian, and smaller percentages for other race, Native Hawaiian or Pacific Islander, Native American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White27,88274.21%
Black or African American3,2928.76%
Asian3,2648.69%
Two or more races2,4876.62%
Other race5281.41%
Native Hawaiian or Pacific Islander700.19%
Native American470.13%
Race
Population ↓
Percentage (of total)
Two or more races8292.21%
White3911.04%
Other race3660.97%
Black or African American1110.3%
Native American470.13%
Asian220.06%
Race
Population ↓
Percentage (of total)
White27,49173.17%
Asian3,2428.63%
Black or African American3,1818.47%
Two or more races1,6584.41%
Other race1620.43%
Native Hawaiian or Pacific Islander700.19%

Sun Prairie Marital Status

Economics and Income Statistics

Sun Prairie 's average per capita income is $63,578. Household income levels show a median of $90,942. The poverty rate stands at 6.19%.

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$131,071-
Families$115,727$135,173
Households$90,942$111,947
Non Families$57,210$68,812

$63,578

Average Income

$90,942

Median Household Income

6.19%

Poverty Rate

Nearby Cities

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)