Sun Prairie, WI Demographics

A map of Sun Prairie's Population by Race

Sun Prairie, Wisconsin has an estimated population of 37,570, an increase from the 35,967 recorded in the 2020 Census. The population is 73.2% White, 8.6% Asian, 8.5% Black, 4.7% Hispanic, 4.4% Multiracial, and 0.6% Native American/Other. This demographic dot map shows the population of Sun Prairie, with one dot drawn for each person counted by the Census, color-coded by race.

Sun Prairie is about as racially diverse as it was in the 2020 Census. It is considerably more diverse than Wisconsin overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Sun Prairie, that probability was 44.5% in 2020 and 44.6% in the most recent ACS estimates.

Sun Prairie is ranked the 20th most populous place in Wisconsin, out of 808 places. This ranking is based on the Census definition of a place, which includes incorporated places like cities, towns, and villages, as well as unincorporated census-designated places (CDPs). Sun Prairie was ranked the 24th most populous place in the 2020 Census.

Sun Prairie's White Population

27,491 residents of Sun Prairie, or 73.2% of the population, identify as White. The share of White residents in Sun Prairie is lower than in Wisconsin overall, where 78.6% of the population is White. Sun Prairie ranks 747th statewide in terms of White residents as a share of the population, out of 808 places.

Since the 2020 Census, Sun Prairie's White population has grown by an estimated 4.3%. White residents' share of Sun Prairie's population has remained roughly unchanged at 73.2%.

Sun Prairie is less White than neighboring Windsor (89% White), Cottage Grove (84.8% White), DeForest (81.3% White), Maple Bluff (91% White), and Monona (85.7% White).

Sun Prairie's Black Population

3,181 residents of Sun Prairie, or 8.5% of the population, identify as Black. The share of Black residents in Sun Prairie is slightly higher than in Wisconsin overall, where 5.9% of the population is Black. Sun Prairie ranks 17th statewide in terms of Black residents as a share of the population, out of 808 places.

Since the 2020 Census, Sun Prairie's Black population has grown by an estimated 21.9%. Black residents' share of Sun Prairie's population has increased from 7.3% to 8.5%.

Sun Prairie is more Black than neighboring Windsor (0.4% Black), Cottage Grove (1.6% Black), DeForest (2.3% Black), Maple Bluff (0.5% Black), and Monona (3.3% Black).

Sun Prairie's Asian Population

3,242 residents of Sun Prairie, or 8.6% of the population, identify as Asian. The share of Asian residents in Sun Prairie is higher than in Wisconsin overall, where 2.9% of the population is Asian. Sun Prairie ranks 9th statewide in terms of Asian residents as a share of the population, out of 808 places.

Since the 2020 Census, Sun Prairie's Asian population has grown by an estimated 19.3%. Asian residents' share of Sun Prairie's population has increased from 7.6% to 8.6%.

Sun Prairie is more Asian than neighboring Windsor (4.8% Asian), Cottage Grove (6.1% Asian), DeForest (2% Asian), Maple Bluff (0% Asian), and Monona (2.8% Asian).

Sun Prairie's Hispanic Population

1,766 residents of Sun Prairie, or 4.7% of the population, identify as Hispanic. The share of Hispanic residents in Sun Prairie is slightly lower than in Wisconsin overall, where 8% of the population is Hispanic. Sun Prairie ranks 153rd statewide in terms of Hispanic residents as a share of the population, out of 808 places.

Since the 2020 Census, Sun Prairie's Hispanic population has declined by an estimated 19.4%. Hispanic residents' share of Sun Prairie's population has decreased from 6.1% to 4.7%.

Sun Prairie is more Hispanic than neighboring Windsor (3.9% Hispanic), and Monona (2.6% Hispanic). Sun Prairie is less Hispanic than neighboring Cottage Grove (5% Hispanic), DeForest (7.9% Hispanic), and Maple Bluff (5.7% Hispanic).

Sun Prairie's Native American/Other Population

232 residents of Sun Prairie, or 0.6% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Sun Prairie is comparable to the share in Wisconsin overall, where 0.9% of the population is Native American/Other. Sun Prairie ranks 308th statewide in terms of Native American/Other residents as a share of the population, out of 808 places.

Since the 2020 Census, Sun Prairie's Native American/Other population has declined by an estimated 18.3%. Native American/Other residents' share of Sun Prairie's population has remained roughly unchanged at 0.6%.

Sun Prairie is more Native American/Other than neighboring Windsor (0.3% Native American/Other), Cottage Grove (0% Native American/Other), and DeForest (0.1% Native American/Other). Sun Prairie is less Native American/Other than neighboring Maple Bluff (1.3% Native American/Other), and Monona (0.7% Native American/Other).

Sun Prairie's Multiracial Population

1,658 residents of Sun Prairie, or 4.4% of the population, identify as Multiracial. The share of Multiracial residents in Sun Prairie is comparable to the share in Wisconsin overall, where 3.7% of the population is Multiracial. Sun Prairie ranks 85th statewide in terms of Multiracial residents as a share of the population, out of 808 places.

Since the 2020 Census, Sun Prairie's Multiracial population has declined by an estimated 7.7%. Multiracial residents' share of Sun Prairie's population has decreased from 5.0% to 4.4%.

Sun Prairie is more Multiracial than neighboring Windsor (1.6% Multiracial), Cottage Grove (2.5% Multiracial), and Maple Bluff (1.4% Multiracial). Sun Prairie is less Multiracial than neighboring DeForest (6.5% Multiracial), and Monona (4.8% Multiracial).

Sources: Most recent population estimates are from the 2020-2024 American Community Survey 5-Year Estimates. 2020 population counts and map data are from 2020 Census State Redistricting Data. Geographic data are from Census TIGER/Line Shapefiles.