Williams County Demographics

A map of Williams County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	33,347	33,483	90.8%	90.2%
Hispanic	1,982	1,862	5.4%	5.0%
Multiracial	838	1,089	2.3%	2.9%
Asian	241	198	0.7%	0.5%
Black	221	323	0.6%	0.9%
Native American/Other	90	147	0.2%	0.4%

Williams County, Ohio has an estimated population of 36,719, a slight decrease from the 37,102 recorded in the 2020 Census. The population is 90.8% White, 5.4% Hispanic, 2.3% Multiracial, 0.7% Asian, 0.6% Black, and 0.2% Native American/Other. This demographic dot map shows the population of Williams County, with one dot drawn for each person counted by the Census, color-coded by race.

Williams has become less racially diverse since the 2020 Census. It is considerably less diverse than Ohio overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Williams County, that probability was 18.2% in 2020 and 17.2% in the most recent ACS estimates.

Williams County is ranked the 67th most populous county in Ohio, out of 88 counties. Williams County was ranked the 66th most populous county in the 2020 Census.

Williams County's White Population

33,347 residents of Williams County, or 90.8% of the population, identify as White. The share of White residents in Williams County is considerably higher than in Ohio overall, where 75.8% of the population is White. Williams County ranks 47th statewide in terms of White residents as a share of the population, out of 88 counties.

Since the 2020 Census, Williams County's White population has remained roughly the same. White residents' share of Williams County's population has increased from 90.2% to 90.8%.

Williams County is more White than neighboring Defiance County (84.7% White), and Paulding County (90% White). Williams County is less White than neighboring Hillsdale County (92.1% White), Steuben County (91.4% White), and DeKalb County (93.6% White).

Williams County's Black Population

221 residents of Williams County, or 0.6% of the population, identify as Black. The share of Black residents in Williams County is considerably lower than in Ohio overall, where 12% of the population is Black. Williams County ranks 62nd statewide in terms of Black residents as a share of the population, out of 88 counties.

Since the 2020 Census, Williams County's Black population has declined by an estimated 31.6%. Black residents' share of Williams County's population has remained roughly unchanged at 0.6%.

Williams County is more Black than neighboring DeKalb County (0.1% Black), and Paulding County (0.2% Black). Williams County is less Black than neighboring Defiance County (1.6% Black), Hillsdale County (0.7% Black), and Steuben County (0.7% Black).

Williams County's Asian Population

241 residents of Williams County, or 0.7% of the population, identify as Asian. The share of Asian residents in Williams County is comparable to the share in Ohio overall, where 2.5% of the population is Asian. Williams County ranks 41st statewide in terms of Asian residents as a share of the population, out of 88 counties.

Since the 2020 Census, Williams County's Asian population has grown by an estimated 21.7%. Asian residents' share of Williams County's population has remained roughly unchanged at 0.7%.

Williams County is more Asian than neighboring Defiance County (0.2% Asian), Hillsdale County (0.3% Asian), DeKalb County (0.6% Asian), and Paulding County (0.5% Asian).

Williams County's Hispanic Population

1,982 residents of Williams County, or 5.4% of the population, identify as Hispanic. The share of Hispanic residents in Williams County is comparable to the share in Ohio overall, where 4.8% of the population is Hispanic. Williams County ranks 18th statewide in terms of Hispanic residents as a share of the population, out of 88 counties.

Since the 2020 Census, Williams County's Hispanic population has grown by an estimated 6.4%. Hispanic residents' share of Williams County's population has remained roughly unchanged at 5.4%.

Williams County is more Hispanic than neighboring Hillsdale County (2.8% Hispanic), Steuben County (4.5% Hispanic), and DeKalb County (3.1% Hispanic). Williams County is less Hispanic than neighboring Defiance County (11.1% Hispanic), and Paulding County (5.8% Hispanic).

Williams County's Native American/Other Population

90 residents of Williams County, or 0.2% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Williams County is comparable to the share in Ohio overall, where 0.5% of the population is Native American/Other. Williams County ranks 68th statewide in terms of Native American/Other residents as a share of the population, out of 88 counties.

Since the 2020 Census, Williams County's Native American/Other population has declined by an estimated 38.8%. Native American/Other residents' share of Williams County's population has remained roughly unchanged at 0.2%.

Williams County is more Native American/Other than neighboring Paulding County (0.1% Native American/Other). Williams County is less Native American/Other than neighboring Hillsdale County (0.5% Native American/Other), and Steuben County (0.6% Native American/Other).

Williams County's Multiracial Population

838 residents of Williams County, or 2.3% of the population, identify as Multiracial. The share of Multiracial residents in Williams County is comparable to the share in Ohio overall, where 4.3% of the population is Multiracial. Williams County ranks 75th statewide in terms of Multiracial residents as a share of the population, out of 88 counties.

Since the 2020 Census, Williams County's Multiracial population has declined by an estimated 23.0%. Multiracial residents' share of Williams County's population has decreased from 2.9% to 2.3%.

Williams County is more Multiracial than neighboring Defiance County (2.1% Multiracial), and Steuben County (2.2% Multiracial). Williams County is less Multiracial than neighboring Hillsdale County (3.6% Multiracial), DeKalb County (2.5% Multiracial), and Paulding County (3.4% 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.