Oconto County Demographics

A map of Oconto County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	36,922	36,170	93.3%	92.8%
Multiracial	1,159	1,217	2.9%	3.1%
Hispanic	903	848	2.3%	2.2%
Native American/Other	459	529	1.2%	1.4%
Asian	95	110	0.2%	0.3%
Black	51	91	0.1%	0.2%

Oconto County, Wisconsin has an estimated population of 39,589, a slight increase from the 38,965 recorded in the 2020 Census. The population is 93.3% White, 2.9% Multiracial, 2.3% Hispanic, 1.2% Native American/Other, 0.2% Asian, and 0.1% Black. This demographic dot map shows the population of Oconto County, with one dot drawn for each person counted by the Census, color-coded by race.

Oconto has become slightly less racially diverse since 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 Oconto County, that probability was 13.7% in 2020 and 12.9% in the most recent ACS estimates.

Oconto County is ranked the 38th most populous county in Wisconsin, out of 72 counties. Oconto County was ranked the 38th most populous county in the 2020 Census.

Oconto County's White Population

36,922 residents of Oconto County, or 93.3% of the population, identify as White. The share of White residents in Oconto County is considerably higher than in Wisconsin overall, where 78.6% of the population is White. Oconto County ranks 16th statewide in terms of White residents as a share of the population, out of 72 counties.

Since the 2020 Census, Oconto County's White population has grown by an estimated 2.1%. White residents' share of Oconto County's population has increased from 92.8% to 93.3%.

Oconto County is more White than neighboring Menominee County (13% White), Brown County (77.3% White), Shawano County (84.6% White), and Outagamie County (84.9% White). Oconto County is less White than neighboring Marinette County (93.4% White).

Oconto County's Black Population

51 residents of Oconto County, or 0.1% of the population, identify as Black. The share of Black residents in Oconto County is lower than in Wisconsin overall, where 5.9% of the population is Black. Oconto County ranks 65th statewide in terms of Black residents as a share of the population, out of 72 counties.

Since the 2020 Census, Oconto County's Black population has declined by an estimated 44.0%. Black residents' share of Oconto County's population has remained roughly unchanged at 0.1%.

Oconto County is less Black than neighboring Marinette County (0.5% Black), Menominee County (0.8% Black), Brown County (2.4% Black), Shawano County (0.6% Black), and Outagamie County (1.5% Black).

Oconto County's Asian Population

95 residents of Oconto County, or 0.2% of the population, identify as Asian. The share of Asian residents in Oconto County is slightly lower than in Wisconsin overall, where 2.9% of the population is Asian. Oconto County ranks 64th statewide in terms of Asian residents as a share of the population, out of 72 counties.

Since the 2020 Census, Oconto County's Asian population has declined by an estimated 13.6%. Asian residents' share of Oconto County's population has remained roughly unchanged at 0.2%.

Oconto County is more Asian than neighboring Menominee County (0% Asian). Oconto County is less Asian than neighboring Marinette County (0.3% Asian), Brown County (3.3% Asian), Shawano County (0.6% Asian), and Outagamie County (3.7% Asian).

Oconto County's Hispanic Population

903 residents of Oconto County, or 2.3% of the population, identify as Hispanic. The share of Hispanic residents in Oconto County is lower than in Wisconsin overall, where 8% of the population is Hispanic. Oconto County ranks 53rd statewide in terms of Hispanic residents as a share of the population, out of 72 counties.

Since the 2020 Census, Oconto County's Hispanic population has grown by an estimated 6.5%. Hispanic residents' share of Oconto County's population has remained roughly unchanged at 2.3%.

Oconto County is less Hispanic than neighboring Marinette County (2.9% Hispanic), Menominee County (5.1% Hispanic), Brown County (10.3% Hispanic), Shawano County (3.3% Hispanic), and Outagamie County (5.3% Hispanic).

Oconto County's Native American/Other Population

459 residents of Oconto County, or 1.2% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Oconto County is comparable to the share in Wisconsin overall, where 0.9% of the population is Native American/Other. Oconto County ranks 20th statewide in terms of Native American/Other residents as a share of the population, out of 72 counties.

Since the 2020 Census, Oconto County's Native American/Other population has declined by an estimated 13.2%. Native American/Other residents' share of Oconto County's population has remained roughly unchanged at 1.2%.

Oconto County is more Native American/Other than neighboring Marinette County (0.2% Native American/Other), and Outagamie County (1.1% Native American/Other). Oconto County is less Native American/Other than neighboring Menominee County (79% Native American/Other), Brown County (1.9% Native American/Other), and Shawano County (6.1% Native American/Other).

Oconto County's Multiracial Population

1,159 residents of Oconto County, or 2.9% of the population, identify as Multiracial. The share of Multiracial residents in Oconto County is comparable to the share in Wisconsin overall, where 3.7% of the population is Multiracial. Oconto County ranks 29th statewide in terms of Multiracial residents as a share of the population, out of 72 counties.

Since the 2020 Census, Oconto County's Multiracial population has declined by an estimated 4.8%. Multiracial residents' share of Oconto County's population has remained roughly unchanged at 2.9%.

Oconto County is more Multiracial than neighboring Marinette County (2.6% Multiracial), and Menominee County (2.1% Multiracial). Oconto County is less Multiracial than neighboring Brown County (4.8% Multiracial), Shawano County (4.7% Multiracial), and 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.