Ohio County Demographics

A map of Ohio County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	37,344	37,559	89.8%	88.5%
Multiracial	1,869	1,955	4.5%	4.6%
Black	1,390	1,656	3.3%	3.9%
Hispanic	699	647	1.7%	1.5%
Asian	203	387	0.5%	0.9%
Native American/Other	77	221	0.2%	0.5%

Ohio County, West Virginia has an estimated population of 41,582, a slight decrease from the 42,425 recorded in the 2020 Census. The population is 89.8% White, 4.5% Multiracial, 3.3% Black, 1.7% Hispanic, 0.5% Asian, and 0.2% Native American/Other. This demographic dot map shows the population of Ohio County, with one dot drawn for each person counted by the Census, color-coded by race.

Ohio has become less racially diverse since the 2020 Census. It is about as diverse as West Virginia overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Ohio County, that probability was 21.2% in 2020 and 19.0% in the most recent ACS estimates.

Ohio County is ranked the 12th most populous county in West Virginia, out of 55 counties. Ohio County was ranked the 12th most populous county in the 2020 Census.

Ohio County's White Population

37,344 residents of Ohio County, or 89.8% of the population, identify as White. The share of White residents in Ohio County is comparable to the share in West Virginia overall, where 89.7% of the population is White. Ohio County ranks 46th statewide in terms of White residents as a share of the population, out of 55 counties.

Since the 2020 Census, Ohio County's White population has remained roughly the same. White residents' share of Ohio County's population has increased from 88.5% to 89.8%.

Ohio County is more White than neighboring Jefferson County (88.4% White), and Washington County (89.7% White). Ohio County is less White than neighboring Brooke County (92.4% White), Marshall County (92.9% White), and Belmont County (90.7% White).

Ohio County's Black Population

1,390 residents of Ohio County, or 3.3% of the population, identify as Black. The share of Black residents in Ohio County is comparable to the share in West Virginia overall, where 3.1% of the population is Black. Ohio County ranks 11th statewide in terms of Black residents as a share of the population, out of 55 counties.

Since the 2020 Census, Ohio County's Black population has declined by an estimated 16.1%. Black residents' share of Ohio County's population has decreased from 3.9% to 3.3%.

Ohio County is more Black than neighboring Brooke County (1.5% Black), Marshall County (0.3% Black), Belmont County (3% Black), and Washington County (3.2% Black). Ohio County is less Black than neighboring Jefferson County (5.1% Black).

Ohio County's Asian Population

203 residents of Ohio County, or 0.5% of the population, identify as Asian. The share of Asian residents in Ohio County is comparable to the share in West Virginia overall, where 0.8% of the population is Asian. Ohio County ranks 8th statewide in terms of Asian residents as a share of the population, out of 55 counties.

Since the 2020 Census, Ohio County's Asian population has declined by an estimated 47.5%. Asian residents' share of Ohio County's population has remained roughly unchanged at 0.5%.

Ohio County is more Asian than neighboring Marshall County (0.3% Asian). Ohio County is less Asian than neighboring Brooke County (0.7% Asian), Jefferson County (0.6% Asian), Belmont County (0.6% Asian), and Washington County (1.3% Asian).

Ohio County's Hispanic Population

699 residents of Ohio County, or 1.7% of the population, identify as Hispanic. The share of Hispanic residents in Ohio County is comparable to the share in West Virginia overall, where 2.1% of the population is Hispanic. Ohio County ranks 14th statewide in terms of Hispanic residents as a share of the population, out of 55 counties.

Since the 2020 Census, Ohio County's Hispanic population has grown by an estimated 8.0%. Hispanic residents' share of Ohio County's population has remained roughly unchanged at 1.7%.

Ohio County is more Hispanic than neighboring Brooke County (1.4% Hispanic), Marshall County (1.2% Hispanic), and Belmont County (1.4% Hispanic). Ohio County is less Hispanic than neighboring Jefferson County (1.9% Hispanic), and Washington County (2.1% Hispanic).

Ohio County's Native American/Other Population

77 residents of Ohio 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 Ohio County is comparable to the share in West Virginia overall, where 0.4% of the population is Native American/Other. Ohio County ranks 8th statewide in terms of Native American/Other residents as a share of the population, out of 55 counties.

Since the 2020 Census, Ohio County's Native American/Other population has declined by an estimated 65.2%. Native American/Other residents' share of Ohio County's population has remained roughly unchanged at 0.2%.

Ohio County is more Native American/Other than neighboring Brooke County (0.1% Native American/Other). Ohio County is less Native American/Other than neighboring Marshall County (1.1% Native American/Other), Jefferson County (0.4% Native American/Other), and Washington County (0.3% Native American/Other).

Ohio County's Multiracial Population

1,869 residents of Ohio County, or 4.5% of the population, identify as Multiracial. The share of Multiracial residents in Ohio County is comparable to the share in West Virginia overall, where 3.9% of the population is Multiracial. Ohio County ranks 6th statewide in terms of Multiracial residents as a share of the population, out of 55 counties.

Since the 2020 Census, Ohio County's Multiracial population has declined by an estimated 4.4%. Multiracial residents' share of Ohio County's population has remained roughly unchanged at 4.5%.

Ohio County is more Multiracial than neighboring Brooke County (4% Multiracial), Marshall County (4.1% Multiracial), Jefferson County (3.5% Multiracial), Belmont County (4.2% Multiracial), and Washington 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.