Clinton County Demographics

A map of Clinton County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	38,534	38,247	91.7%	91.0%
Multiracial	1,509	1,715	3.6%	4.1%
Hispanic	976	765	2.3%	1.8%
Black	749	819	1.8%	1.9%
Native American/Other	136	267	0.3%	0.6%
Asian	108	205	0.3%	0.5%

Clinton County, Ohio has an estimated population of 42,012, a less than 1% change from the 42,018 recorded in the 2020 Census. The population is 91.7% White, 3.6% Multiracial, 2.3% Hispanic, 1.8% Black, 0.3% Asian, and 0.3% Native American/Other. This demographic dot map shows the population of Clinton County, with one dot drawn for each person counted by the Census, color-coded by race.

Clinton 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 Clinton County, that probability was 16.9% in 2020 and 15.7% in the most recent ACS estimates.

Clinton County is ranked the 59th most populous county in Ohio, out of 88 counties. Clinton County was ranked the 60th most populous county in the 2020 Census.

Clinton County's White Population

38,534 residents of Clinton County, or 91.7% of the population, identify as White. The share of White residents in Clinton County is significantly higher than in Ohio overall, where 75.8% of the population is White. Clinton County ranks 39th statewide in terms of White residents as a share of the population, out of 88 counties.

Since the 2020 Census, Clinton County's White population has remained roughly the same. White residents' share of Clinton County's population has increased from 91.0% to 91.7%.

Clinton County is more White than neighboring Greene County (81.3% White), Warren County (81.8% White), and Fayette County (90.8% White). Clinton County is less White than neighboring Highland County (94.4% White), and Brown County (94.7% White).

Clinton County's Black Population

749 residents of Clinton County, or 1.8% of the population, identify as Black. The share of Black residents in Clinton County is considerably lower than in Ohio overall, where 12% of the population is Black. Clinton County ranks 42nd statewide in terms of Black residents as a share of the population, out of 88 counties.

Since the 2020 Census, Clinton County's Black population has declined by an estimated 8.5%. Black residents' share of Clinton County's population has remained roughly unchanged at 1.8%.

Clinton County is more Black than neighboring Highland County (1.2% Black), and Brown County (0.6% Black). Clinton County is less Black than neighboring Greene County (5.8% Black), Warren County (3.2% Black), and Fayette County (2% Black).

Clinton County's Asian Population

108 residents of Clinton County, or 0.3% of the population, identify as Asian. The share of Asian residents in Clinton County is slightly lower than in Ohio overall, where 2.5% of the population is Asian. Clinton County ranks 47th statewide in terms of Asian residents as a share of the population, out of 88 counties.

Since the 2020 Census, Clinton County's Asian population has declined by an estimated 47.3%. Asian residents' share of Clinton County's population has remained roughly unchanged at 0.3%.

Clinton County is more Asian than neighboring Highland County (0.1% Asian). Clinton County is less Asian than neighboring Greene County (3% Asian), Warren County (7.2% Asian), and Fayette County (0.8% Asian).

Clinton County's Hispanic Population

976 residents of Clinton County, or 2.3% of the population, identify as Hispanic. The share of Hispanic residents in Clinton County is slightly lower than in Ohio overall, where 4.8% of the population is Hispanic. Clinton County ranks 52nd statewide in terms of Hispanic residents as a share of the population, out of 88 counties.

Since the 2020 Census, Clinton County's Hispanic population has grown by an estimated 27.6%. Hispanic residents' share of Clinton County's population has remained roughly unchanged at 2.3%.

Clinton County is more Hispanic than neighboring Highland County (1.2% Hispanic), and Brown County (1.3% Hispanic). Clinton County is less Hispanic than neighboring Greene County (3.3% Hispanic), Warren County (3.5% Hispanic), and Fayette County (2.5% Hispanic).

Clinton County's Native American/Other Population

136 residents of Clinton County, or 0.3% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Clinton County is comparable to the share in Ohio overall, where 0.5% of the population is Native American/Other. Clinton County ranks 14th statewide in terms of Native American/Other residents as a share of the population, out of 88 counties.

Since the 2020 Census, Clinton County's Native American/Other population has declined by an estimated 49.1%. Native American/Other residents' share of Clinton County's population has remained roughly unchanged at 0.3%.

Clinton County is more Native American/Other than neighboring Highland County (0.2% Native American/Other), Fayette County (0.2% Native American/Other), and Brown County (0.1% Native American/Other). Clinton County is less Native American/Other than neighboring Greene County (0.9% Native American/Other), and Warren County (0.7% Native American/Other).

Clinton County's Multiracial Population

1,509 residents of Clinton County, or 3.6% of the population, identify as Multiracial. The share of Multiracial residents in Clinton County is comparable to the share in Ohio overall, where 4.3% of the population is Multiracial. Clinton County ranks 30th statewide in terms of Multiracial residents as a share of the population, out of 88 counties.

Since the 2020 Census, Clinton County's Multiracial population has declined by an estimated 12.0%. Multiracial residents' share of Clinton County's population has remained roughly unchanged at 3.6%.

Clinton County is more Multiracial than neighboring Highland County (2.9% Multiracial), and Brown County (3% Multiracial). Clinton County is less Multiracial than neighboring Greene County (5.8% Multiracial), and Fayette County (3.7% 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.