Ohio County Demographics

A map of Ohio County's Population by Race

Ohio County, Kentucky has an estimated population of 23,735, a less than 1% change from the 23,772 recorded in the 2020 Census. The population is 91.9% White, 4.8% Hispanic, 2.0% Multiracial, 0.6% Black, 0.5% Native American/Other, and 0.2% Asian. 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 is about as racially diverse as it was in the 2020 Census. It is considerably less diverse than Kentucky 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 15.1% in 2020 and 15.2% in the most recent ACS estimates.

Ohio County is ranked the 49th most populous county in Kentucky, out of 120 counties. Ohio County was ranked the 50th most populous county in the 2020 Census.

Ohio County's White Population

21,819 residents of Ohio County, or 91.9% of the population, identify as White. The share of White residents in Ohio County is considerably higher than in Kentucky overall, where 81.5% of the population is White. Ohio County ranks 53rd statewide in terms of White residents as a share of the population, out of 120 counties.

Since the 2020 Census, Ohio County's White population has remained roughly the same. White residents' share of Ohio County's population has remained roughly unchanged at 91.9%.

Ohio County is more White than neighboring Daviess County (84.9% White). Ohio County is less White than neighboring Hancock County (94.1% White), and McLean County (94.1% White).

Ohio County's Black Population

139 residents of Ohio County, or 0.6% of the population, identify as Black. The share of Black residents in Ohio County is lower than in Kentucky overall, where 7.6% of the population is Black. Ohio County ranks 91st statewide in terms of Black residents as a share of the population, out of 120 counties.

Since the 2020 Census, Ohio County's Black population has declined by an estimated 10.3%. Black residents' share of Ohio County's population has remained roughly unchanged at 0.6%.

Ohio County is more Black than neighboring Butler County (0% Black), and McLean County (0.5% Black). Ohio County is less Black than neighboring Daviess County (4% Black), Hancock County (1.3% Black), and Muhlenberg County (2% Black).

Ohio County's Asian Population

39 residents of Ohio County, or 0.2% of the population, identify as Asian. The share of Asian residents in Ohio County is comparable to the share in Kentucky overall, where 1.6% of the population is Asian. Ohio County ranks 86th statewide in terms of Asian residents as a share of the population, out of 120 counties.

Since the 2020 Census, Ohio County's Asian population has declined by an estimated 13.3%. Asian residents' share of Ohio County's population has remained roughly unchanged at 0.2%.

Ohio County is more Asian than neighboring Hancock County (0.1% Asian). Ohio County is less Asian than neighboring Butler County (0.3% Asian), Daviess County (2.1% Asian), Muhlenberg County (1% Asian), and McLean County (0.3% Asian).

Ohio County's Hispanic Population

1,131 residents of Ohio County, or 4.8% of the population, identify as Hispanic. The share of Hispanic residents in Ohio County is comparable to the share in Kentucky overall, where 5% of the population is Hispanic. Ohio County ranks 24th statewide in terms of Hispanic residents as a share of the population, out of 120 counties.

Since the 2020 Census, Ohio County's Hispanic population has grown by an estimated 13.9%. Hispanic residents' share of Ohio County's population has increased from 4.2% to 4.8%.

Ohio County is more Hispanic than neighboring Daviess County (4.3% Hispanic), Hancock County (0.8% Hispanic), Muhlenberg County (2% Hispanic), and McLean County (2.2% Hispanic). Ohio County is less Hispanic than neighboring Butler County (5.3% Hispanic).

Ohio County's Native American/Other Population

124 residents of Ohio County, or 0.5% 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 Kentucky overall, where 0.4% of the population is Native American/Other. Ohio County ranks 87th statewide in terms of Native American/Other residents as a share of the population, out of 120 counties.

Since the 2020 Census, Ohio County's Native American/Other population has grown by an estimated 51.2%. Native American/Other residents' share of Ohio County's population has remained roughly unchanged at 0.5%.

Ohio County is more Native American/Other than neighboring Butler County (0% Native American/Other), Muhlenberg County (0.1% Native American/Other), and McLean County (0.2% Native American/Other). Ohio County is less Native American/Other than neighboring Daviess County (0.9% Native American/Other), and Hancock County (0.9% Native American/Other).

Ohio County's Multiracial Population

483 residents of Ohio County, or 2.0% of the population, identify as Multiracial. The share of Multiracial residents in Ohio County is comparable to the share in Kentucky overall, where 3.9% of the population is Multiracial. Ohio County ranks 82nd statewide in terms of Multiracial residents as a share of the population, out of 120 counties.

Since the 2020 Census, Ohio County's Multiracial population has declined by an estimated 22.7%. Multiracial residents' share of Ohio County's population has decreased from 2.6% to 2.0%.

Ohio County is less Multiracial than neighboring Butler County (2.5% Multiracial), Daviess County (3.8% Multiracial), Hancock County (2.9% Multiracial), Muhlenberg County (2.9% Multiracial), and McLean County (2.6% 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.