Winnebago County Demographics

A map of Winnebago County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	145,904	145,581	84.9%	84.8%
Hispanic	8,736	8,328	5.1%	4.8%
Multiracial	5,807	5,980	3.4%	3.5%
Asian	5,525	5,560	3.2%	3.2%
Black	4,642	4,931	2.7%	2.9%
Native American/Other	1,155	1,350	0.7%	0.8%

Winnebago County, Wisconsin has an estimated population of 171,769, a less than 1% change from the 171,730 recorded in the 2020 Census. The population is 84.9% White, 5.1% Hispanic, 3.4% Multiracial, 3.2% Asian, 2.7% Black, and 0.7% Native American/Other. This demographic dot map shows the population of Winnebago County, with one dot drawn for each person counted by the Census, color-coded by race.

Winnebago is about as racially diverse as it was in the 2020 Census. It is considerably less 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 Winnebago County, that probability was 27.6% in 2020 and 27.3% in the most recent ACS estimates.

Winnebago County is ranked the 7th most populous county in Wisconsin, out of 72 counties. Winnebago County was ranked the 7th most populous county in the 2020 Census.

Winnebago County's White Population

145,904 residents of Winnebago County, or 84.9% of the population, identify as White. The share of White residents in Winnebago County is higher than in Wisconsin overall, where 78.6% of the population is White. Winnebago County ranks 57th statewide in terms of White residents as a share of the population, out of 72 counties.

Since the 2020 Census, Winnebago County's White population has remained roughly the same. White residents' share of Winnebago County's population has remained roughly unchanged at 84.9%.

Winnebago County is less White than neighboring Fond du Lac County (86% White), Calumet County (87.5% White), Green Lake County (90.5% White), and Waupaca County (92.4% White).

Winnebago County's Black Population

4,642 residents of Winnebago County, or 2.7% of the population, identify as Black. The share of Black residents in Winnebago County is slightly lower than in Wisconsin overall, where 5.9% of the population is Black. Winnebago County ranks 8th statewide in terms of Black residents as a share of the population, out of 72 counties.

Since the 2020 Census, Winnebago County's Black population has declined by an estimated 5.9%. Black residents' share of Winnebago County's population has remained roughly unchanged at 2.7%.

Winnebago County is more Black than neighboring Fond du Lac County (1.7% Black), Outagamie County (1.5% Black), Calumet County (0.9% Black), Green Lake County (0.5% Black), and Waupaca County (0.5% Black).

Winnebago County's Asian Population

5,525 residents of Winnebago County, or 3.2% of the population, identify as Asian. The share of Asian residents in Winnebago County is comparable to the share in Wisconsin overall, where 2.9% of the population is Asian. Winnebago County ranks 9th statewide in terms of Asian residents as a share of the population, out of 72 counties.

Since the 2020 Census, Winnebago County's Asian population has remained roughly the same. Asian residents' share of Winnebago County's population has remained roughly unchanged at 3.2%.

Winnebago County is more Asian than neighboring Fond du Lac County (1.8% Asian), Calumet County (2.6% Asian), Green Lake County (1.1% Asian), and Waupaca County (0.3% Asian). Winnebago County is less Asian than neighboring Outagamie County (3.7% Asian).

Winnebago County's Hispanic Population

8,736 residents of Winnebago County, or 5.1% of the population, identify as Hispanic. The share of Hispanic residents in Winnebago County is slightly lower than in Wisconsin overall, where 8% of the population is Hispanic. Winnebago County ranks 23rd statewide in terms of Hispanic residents as a share of the population, out of 72 counties.

Since the 2020 Census, Winnebago County's Hispanic population has grown by an estimated 4.9%. Hispanic residents' share of Winnebago County's population has remained roughly unchanged at 5.1%.

Winnebago County is more Hispanic than neighboring Waupaca County (3.9% Hispanic). Winnebago County is less Hispanic than neighboring Fond du Lac County (6.8% Hispanic), Outagamie County (5.3% Hispanic), Calumet County (5.7% Hispanic), and Green Lake County (5.6% Hispanic).

Winnebago County's Native American/Other Population

1,155 residents of Winnebago County, or 0.7% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Winnebago County is comparable to the share in Wisconsin overall, where 0.9% of the population is Native American/Other. Winnebago County ranks 29th statewide in terms of Native American/Other residents as a share of the population, out of 72 counties.

Since the 2020 Census, Winnebago County's Native American/Other population has declined by an estimated 14.4%. Native American/Other residents' share of Winnebago County's population has remained roughly unchanged at 0.7%.

Winnebago County is more Native American/Other than neighboring Calumet County (0.5% Native American/Other), and Waupaca County (0.4% Native American/Other). Winnebago County is less Native American/Other than neighboring Outagamie County (1.1% Native American/Other).

Winnebago County's Multiracial Population

5,807 residents of Winnebago County, or 3.4% of the population, identify as Multiracial. The share of Multiracial residents in Winnebago County is comparable to the share in Wisconsin overall, where 3.7% of the population is Multiracial. Winnebago County ranks 16th statewide in terms of Multiracial residents as a share of the population, out of 72 counties.

Since the 2020 Census, Winnebago County's Multiracial population has declined by an estimated 2.9%. Multiracial residents' share of Winnebago County's population has remained roughly unchanged at 3.4%.

Winnebago County is more Multiracial than neighboring Fond du Lac County (3% Multiracial), Calumet County (2.7% Multiracial), Green Lake County (1.6% Multiracial), and Waupaca County (2.6% Multiracial). Winnebago County is less Multiracial than neighboring Outagamie County (3.5% 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.