Highland County Demographics

A map of Highland County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	41,070	40,492	94.4%	93.5%
Multiracial	1,253	1,560	2.9%	3.6%
Hispanic	531	424	1.2%	1.0%
Black	515	518	1.2%	1.2%
Native American/Other	90	213	0.2%	0.5%
Asian	58	110	0.1%	0.3%

Highland County, Ohio has an estimated population of 43,517, a less than 1% change from the 43,317 recorded in the 2020 Census. The population is 94.4% White, 2.9% Multiracial, 1.2% Black, 1.2% Hispanic, 0.2% Native American/Other, and 0.1% Asian. This demographic dot map shows the population of Highland County, with one dot drawn for each person counted by the Census, color-coded by race.

Highland 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 Highland County, that probability was 12.5% in 2020 and 10.8% in the most recent ACS estimates.

Highland County is ranked the 56th most populous county in Ohio, out of 88 counties. Highland County was ranked the 56th most populous county in the 2020 Census.

Highland County's White Population

41,070 residents of Highland County, or 94.4% of the population, identify as White. The share of White residents in Highland County is significantly higher than in Ohio overall, where 75.8% of the population is White. Highland County ranks 19th statewide in terms of White residents as a share of the population, out of 88 counties.

Since the 2020 Census, Highland County's White population has grown by an estimated 1.4%. White residents' share of Highland County's population has increased from 93.5% to 94.4%.

Highland County is more White than neighboring Clinton County (91.7% White), and Fayette County (90.8% White). Highland County is less White than neighboring Adams County (95.8% White), and Brown County (94.7% White).

Highland County's Black Population

515 residents of Highland County, or 1.2% of the population, identify as Black. The share of Black residents in Highland County is considerably lower than in Ohio overall, where 12% of the population is Black. Highland County ranks 55th statewide in terms of Black residents as a share of the population, out of 88 counties.

Since the 2020 Census, Highland County's Black population has remained roughly the same. Black residents' share of Highland County's population has remained roughly unchanged at 1.2%.

Highland County is more Black than neighboring Adams County (0.4% Black), Brown County (0.6% Black), and Pike County (1% Black). Highland County is less Black than neighboring Clinton County (1.8% Black), and Fayette County (2% Black).

Highland County's Asian Population

58 residents of Highland County, or 0.1% of the population, identify as Asian. The share of Asian residents in Highland County is slightly lower than in Ohio overall, where 2.5% of the population is Asian. Highland County ranks 75th statewide in terms of Asian residents as a share of the population, out of 88 counties.

Since the 2020 Census, Highland County's Asian population has declined by an estimated 47.3%. Asian residents' share of Highland County's population has remained roughly unchanged at 0.1%.

Highland County is less Asian than neighboring Clinton County (0.3% Asian), Adams County (0.5% Asian), Brown County (0.3% Asian), Fayette County (0.8% Asian), and Pike County (0.4% Asian).

Highland County's Hispanic Population

531 residents of Highland County, or 1.2% of the population, identify as Hispanic. The share of Hispanic residents in Highland County is slightly lower than in Ohio overall, where 4.8% of the population is Hispanic. Highland County ranks 76th statewide in terms of Hispanic residents as a share of the population, out of 88 counties.

Since the 2020 Census, Highland County's Hispanic population has grown by an estimated 25.2%. Hispanic residents' share of Highland County's population has remained roughly unchanged at 1.2%.

Highland County is more Hispanic than neighboring Adams County (0.9% Hispanic), and Pike County (0.6% Hispanic). Highland County is less Hispanic than neighboring Clinton County (2.3% Hispanic), Brown County (1.3% Hispanic), and Fayette County (2.5% Hispanic).

Highland County's Native American/Other Population

90 residents of Highland 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 Highland County is comparable to the share in Ohio overall, where 0.5% of the population is Native American/Other. Highland County ranks 38th statewide in terms of Native American/Other residents as a share of the population, out of 88 counties.

Since the 2020 Census, Highland County's Native American/Other population has declined by an estimated 57.7%. Native American/Other residents' share of Highland County's population has remained roughly unchanged at 0.2%.

Highland County is more Native American/Other than neighboring Brown County (0.1% Native American/Other). Highland County is less Native American/Other than neighboring Clinton County (0.3% Native American/Other), Adams County (0.3% Native American/Other), and Pike County (0.7% Native American/Other).

Highland County's Multiracial Population

1,253 residents of Highland County, or 2.9% of the population, identify as Multiracial. The share of Multiracial residents in Highland County is comparable to the share in Ohio overall, where 4.3% of the population is Multiracial. Highland County ranks 52nd statewide in terms of Multiracial residents as a share of the population, out of 88 counties.

Since the 2020 Census, Highland County's Multiracial population has declined by an estimated 19.7%. Multiracial residents' share of Highland County's population has decreased from 3.6% to 2.9%.

Highland County is more Multiracial than neighboring Adams County (2.2% Multiracial). Highland County is less Multiracial than neighboring Clinton County (3.6% Multiracial), Brown County (3% Multiracial), Fayette County (3.7% Multiracial), and Pike County (3% 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.