Preble County Demographics
A map of Preble County's Population by Race
Preble County, Ohio has an estimated population of 40,765, a less than 1% change from the 40,999 recorded in the 2020 Census. The population is 95.0% White, 2.8% Multiracial, 1.1% Hispanic, 0.7% Black, 0.3% Native American/Other, and 0.1% Asian. This demographic dot map shows the population of Preble County, with one dot drawn for each person counted by the Census, color-coded by race.
Preble 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 Preble County, that probability was 10.8% in 2020 and 9.7% in the most recent ACS estimates.
Preble County is ranked the 61st most populous county in Ohio, out of 88 counties. Preble County was ranked the 61st most populous county in the 2020 Census.
Preble County's White Population
38,721 residents of Preble County, or 95.0% of the population, identify as White. The share of White residents in Preble County is significantly higher than in Ohio overall, where 75.8% of the population is White. Preble County ranks 11th statewide in terms of White residents as a share of the population, out of 88 counties.
Since the 2020 Census, Preble County's White population has remained roughly the same. White residents' share of Preble County's population has increased from 94.4% to 95.0%.
Preble County is more White than neighboring Butler County (74.6% White), Montgomery County (67.7% White), Wayne County (85.7% White), and Darke County (94.6% White). Preble County is less White than neighboring Union County (95.1% White).
Preble County's Black Population
268 residents of Preble County, or 0.7% of the population, identify as Black. The share of Black residents in Preble County is considerably lower than in Ohio overall, where 12% of the population is Black. Preble County ranks 80th statewide in terms of Black residents as a share of the population, out of 88 counties.
Since the 2020 Census, Preble County's Black population has grown by an estimated 47.3%. Black residents' share of Preble County's population has remained roughly unchanged at 0.7%.
Preble County is more Black than neighboring Union County (0.6% Black), and Darke County (0.6% Black). Preble County is less Black than neighboring Butler County (8.3% Black), Montgomery County (20.4% Black), and Wayne County (3.8% Black).
Preble County's Asian Population
53 residents of Preble County, or 0.1% of the population, identify as Asian. The share of Asian residents in Preble County is slightly lower than in Ohio overall, where 2.5% of the population is Asian. Preble County ranks 53rd statewide in terms of Asian residents as a share of the population, out of 88 counties.
Since the 2020 Census, Preble County's Asian population has declined by an estimated 67.3%. Asian residents' share of Preble County's population has remained roughly unchanged at 0.1%.
Preble County is less Asian than neighboring Union County (0.4% Asian), Butler County (4.3% Asian), Montgomery County (2.2% Asian), Wayne County (0.9% Asian), and Darke County (0.5% Asian).
Preble County's Hispanic Population
465 residents of Preble County, or 1.1% of the population, identify as Hispanic. The share of Hispanic residents in Preble County is slightly lower than in Ohio overall, where 4.8% of the population is Hispanic. Preble County ranks 77th statewide in terms of Hispanic residents as a share of the population, out of 88 counties.
Since the 2020 Census, Preble County's Hispanic population has grown by an estimated 20.5%. Hispanic residents' share of Preble County's population has remained roughly unchanged at 1.1%.
Preble County is less Hispanic than neighboring Union County (2.5% Hispanic), Butler County (7% Hispanic), Montgomery County (4.2% Hispanic), Wayne County (4% Hispanic), and Darke County (1.9% Hispanic).
Preble County's Native American/Other Population
132 residents of Preble 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 Preble County is comparable to the share in Ohio overall, where 0.5% of the population is Native American/Other. Preble County ranks 51st statewide in terms of Native American/Other residents as a share of the population, out of 88 counties.
Since the 2020 Census, Preble County's Native American/Other population has declined by an estimated 29.0%. Native American/Other residents' share of Preble County's population has remained roughly unchanged at 0.3%.
Preble County is more Native American/Other than neighboring Union County (0.1% Native American/Other), and Darke County (0.1% Native American/Other). Preble County is less Native American/Other than neighboring Butler County (0.6% Native American/Other), Montgomery County (0.5% Native American/Other), and Wayne County (0.6% Native American/Other).
Preble County's Multiracial Population
1,126 residents of Preble County, or 2.8% of the population, identify as Multiracial. The share of Multiracial residents in Preble County is comparable to the share in Ohio overall, where 4.3% of the population is Multiracial. Preble County ranks 66th statewide in terms of Multiracial residents as a share of the population, out of 88 counties.
Since the 2020 Census, Preble County's Multiracial population has declined by an estimated 18.6%. Multiracial residents' share of Preble County's population has decreased from 3.4% to 2.8%.
Preble County is more Multiracial than neighboring Union County (1.3% Multiracial), and Darke County (2.3% Multiracial). Preble County is less Multiracial than neighboring Butler County (5.3% Multiracial), Montgomery County (5% Multiracial), and Wayne County (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.