Adams County Demographics

A map of Adams County's Population by Race

Adams County, Wisconsin has an estimated population of 21,123, a slight increase from the 20,654 recorded in the 2020 Census. The population is 87.6% White, 4.4% Hispanic, 4.3% Multiracial, 2.0% Black, 1.0% Native American/Other, and 0.6% Asian. This demographic dot map shows the population of Adams County, with one dot drawn for each person counted by the Census, color-coded by race.

Adams has become more 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 Adams County, that probability was 20.5% in 2020 and 22.8% in the most recent ACS estimates.

Adams County is ranked the 50th most populous county in Wisconsin, out of 72 counties. Adams County was ranked the 51st most populous county in the 2020 Census.

Adams County's White Population

18,503 residents of Adams County, or 87.6% of the population, identify as White. The share of White residents in Adams County is higher than in Wisconsin overall, where 78.6% of the population is White. Adams County ranks 39th statewide in terms of White residents as a share of the population, out of 72 counties.

Since the 2020 Census, Adams County's White population has remained roughly the same. White residents' share of Adams County's population has decreased from 89.0% to 87.6%.

Adams County is more White than neighboring Juneau County (87.4% White), Waushara County (87.2% White), and Sauk County (86.3% White). Adams County is less White than neighboring Marquette County (92.3% White), and Wood County (90.2% White).

Adams County's Black Population

424 residents of Adams County, or 2.0% of the population, identify as Black. The share of Black residents in Adams County is slightly lower than in Wisconsin overall, where 5.9% of the population is Black. Adams County ranks 9th statewide in terms of Black residents as a share of the population, out of 72 counties.

Since the 2020 Census, Adams County's Black population has declined by an estimated 28.5%. Black residents' share of Adams County's population has decreased from 2.9% to 2.0%.

Adams County is more Black than neighboring Marquette County (0.5% Black), Waushara County (1.8% Black), Wood County (0.6% Black), and Sauk County (0.8% Black). Adams County is less Black than neighboring Juneau County (2.3% Black).

Adams County's Asian Population

135 residents of Adams County, or 0.6% of the population, identify as Asian. The share of Asian residents in Adams County is slightly lower than in Wisconsin overall, where 2.9% of the population is Asian. Adams County ranks 48th statewide in terms of Asian residents as a share of the population, out of 72 counties.

Since the 2020 Census, Adams County's Asian population has grown by an estimated 60.7%. Asian residents' share of Adams County's population has remained roughly unchanged at 0.6%.

Adams County is more Asian than neighboring Marquette County (0.5% Asian), Waushara County (0.4% Asian), and Sauk County (0.4% Asian). Adams County is less Asian than neighboring Wood County (1.7% Asian).

Adams County's Hispanic Population

933 residents of Adams County, or 4.4% of the population, identify as Hispanic. The share of Hispanic residents in Adams County is slightly lower than in Wisconsin overall, where 8% of the population is Hispanic. Adams County ranks 26th statewide in terms of Hispanic residents as a share of the population, out of 72 counties.

Since the 2020 Census, Adams County's Hispanic population has grown by an estimated 17.1%. Hispanic residents' share of Adams County's population has increased from 3.9% to 4.4%.

Adams County is more Hispanic than neighboring Juneau County (3% Hispanic), Marquette County (3.7% Hispanic), and Wood County (3.7% Hispanic). Adams County is less Hispanic than neighboring Waushara County (7% Hispanic), and Sauk County (6.8% Hispanic).

Adams County's Native American/Other Population

216 residents of Adams County, or 1.0% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Adams County is comparable to the share in Wisconsin overall, where 0.9% of the population is Native American/Other. Adams County ranks 23rd statewide in terms of Native American/Other residents as a share of the population, out of 72 counties.

Since the 2020 Census, Adams County's Native American/Other population has declined by an estimated 7.3%. Native American/Other residents' share of Adams County's population has remained roughly unchanged at 1.0%.

Adams County is more Native American/Other than neighboring Marquette County (0.4% Native American/Other), Waushara County (0.7% Native American/Other), and Wood County (0.5% Native American/Other). Adams County is less Native American/Other than neighboring Sauk County (1.3% Native American/Other).

Adams County's Multiracial Population

912 residents of Adams County, or 4.3% of the population, identify as Multiracial. The share of Multiracial residents in Adams County is comparable to the share in Wisconsin overall, where 3.7% of the population is Multiracial. Adams County ranks 52nd statewide in terms of Multiracial residents as a share of the population, out of 72 counties.

Since the 2020 Census, Adams County's Multiracial population has grown by an estimated 58.6%. Multiracial residents' share of Adams County's population has increased from 2.8% to 4.3%.

Adams County is more Multiracial than neighboring Marquette County (2.6% Multiracial), Waushara County (2.8% Multiracial), and Wood County (3.1% Multiracial). Adams County is less Multiracial than neighboring Juneau County (5.9% Multiracial), and Sauk County (4.4% 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.