Warren County Demographics

A map of Warren County's Population by Race

Warren County, Ohio had a population of 242,337 in 2020. It was 81.8% White, 3.4% Black, 7.1% Asian, 3.2% Hispanic, 0.5% Native American/Other, and 4.0% Multiracial. This map presents the population of Warren County, with one dot drawn for each person counted in the 2020 Census, color-coded by race.

Warren County is the 10th most populous county of the 88 counties in Ohio.

Warren County's White Population

198,227 residents of Warren County identify as White, or 81.8%. This makes the White share of the population of Warren County slightly larger than the White share of the population of Ohio (75.9% White). Of the 88 counties in Ohio, Warren County is ranked #74 in terms of White residents as a share of the population.

Warren County is more White than neighboring Montgomery County (67.1% White), Greene County (80.7% White), and Butler County (75.5% White). Warren County is less White than neighboring Clinton County (91% White), and Clermont County (90% White).

Warren County's Black Population

8,175 residents of Warren County identify as Black, or 3.4%. This makes the Black share of the population of Warren County slightly less than the Black share of the population of Ohio (12.3% Black). Of the 88 counties in Ohio, Warren County is ranked #31 in terms of Black residents as a share of the population.

Warren County is more Black than neighboring Clinton County (1.9% Black), and Clermont County (1.6% Black). Warren County is less Black than neighboring Montgomery County (21% Black), Greene County (6.7% Black), and Butler County (8.7% Black).

Warren County's Asian Population

17,278 residents of Warren County identify as Asian, or 7.1%. This makes the Asian share of the population of Warren County roughly similar to the Asian share of the population of Ohio (2.5% Asian). Of the 88 counties in Ohio, Warren County is ranked #2 in terms of Asian residents as a share of the population.

Warren County is more Asian than neighboring Montgomery County (2.4% Asian), Clinton County (0.5% Asian), Clermont County (1.2% Asian), Greene County (3.3% Asian), and Butler County (4% Asian).

Warren County's Hispanic Population

7,738 residents of Warren County identify as Hispanic, or 3.2%. This makes the Hispanic share of the population of Warren County roughly similar to the Hispanic share of the population of Ohio (4.4% Hispanic). Of the 88 counties in Ohio, Warren County is ranked #29 in terms of Hispanic residents as a share of the population.

Warren County is more Hispanic than neighboring Clinton County (1.8% Hispanic), Clermont County (2.4% Hispanic), and Greene County (3.1% Hispanic). Warren County is less Hispanic than neighboring Montgomery County (3.9% Hispanic), and Butler County (6.5% Hispanic).

Warren County's Native American/Other Population

1,150 residents of Warren County identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other, or 0.5%. This makes the Native American/Other share of the population of Warren County roughly similar to the Native American/Other share of the population of Ohio (0.6% Native American/Other). Of the 88 counties in Ohio, Warren County is ranked #45 in terms of Native American/Other residents as a share of the population.

Warren County is less Native American/Other than neighboring Montgomery County (0.7% Native American/Other), Clinton County (0.6% Native American/Other), Greene County (0.8% Native American/Other), and Butler County (0.7% Native American/Other).

Warren County's Multiracial Population

9,769 residents of Warren County identify as Multiracial, or 4.0%. This makes the Multiracial share of the population of Warren County roughly similar to the Multiracial share of the population of Ohio (4.3% Multiracial). Of the 88 counties in Ohio, Warren County is ranked #33 in terms of Multiracial residents as a share of the population.

Warren County is less Multiracial than neighboring Montgomery County (4.9% Multiracial), Clinton County (4.1% Multiracial), Clermont County (4.4% Multiracial), Greene County (5.4% Multiracial), and Butler County (4.6% Multiracial).

Source: 2020 Census State Redistricting Data and Census TIGER/Line Shapefiles.