Hamilton County Demographics

A map of Hamilton County's Population by Race

Hamilton County, Ohio had a population of 830,639 in 2020. It was 62.6% White, 25.0% Black, 3.0% Asian, 4.4% Hispanic, 0.7% Native American/Other, and 4.3% Multiracial. This map presents the population of Hamilton County, with one dot drawn for each person counted in the 2020 Census, color-coded by race.

Hamilton County is the 3rd most populous county of the 88 counties in Ohio.

Hamilton County's White Population

519,734 residents of Hamilton County identify as White, or 62.6%. This makes the White share of the population of Hamilton County less than the White share of the population of Ohio (75.9% White). Of the 88 counties in Ohio, Hamilton County is ranked #86 in terms of White residents as a share of the population.

Hamilton County is less White than neighboring Butler County (75.5% White), Kenton County (84.1% White), Boone County (82.8% White), Campbell County (88.9% White), and Clermont County (90% White).

Hamilton County's Black Population

207,764 residents of Hamilton County identify as Black, or 25.0%. This makes the Black share of the population of Hamilton County larger than the Black share of the population of Ohio (12.3% Black). Of the 88 counties in Ohio, Hamilton County is ranked #2 in terms of Black residents as a share of the population.

Hamilton County is more Black than neighboring Butler County (8.7% Black), Kenton County (4.8% Black), Boone County (4.1% Black), Campbell County (3% Black), and Clermont County (1.6% Black).

Hamilton County's Asian Population

25,160 residents of Hamilton County identify as Asian, or 3.0%. This makes the Asian share of the population of Hamilton County roughly similar to the Asian share of the population of Ohio (2.5% Asian). Of the 88 counties in Ohio, Hamilton County is ranked #9 in terms of Asian residents as a share of the population.

Hamilton County is more Asian than neighboring Kenton County (1.2% Asian), Boone County (2.2% Asian), Campbell County (1.1% Asian), and Clermont County (1.2% Asian). Hamilton County is less Asian than neighboring Butler County (4% Asian).

Hamilton County's Hispanic Population

36,250 residents of Hamilton County identify as Hispanic, or 4.4%. This makes the Hispanic share of the population of Hamilton County roughly similar to the Hispanic share of the population of Ohio (4.4% Hispanic). Of the 88 counties in Ohio, Hamilton County is ranked #21 in terms of Hispanic residents as a share of the population.

Hamilton County is more Hispanic than neighboring Campbell County (2.5% Hispanic), and Clermont County (2.4% Hispanic). Hamilton County is less Hispanic than neighboring Butler County (6.5% Hispanic), Kenton County (4.6% Hispanic), and Boone County (5.7% Hispanic).

Hamilton County's Native American/Other Population

5,750 residents of Hamilton County identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other, or 0.7%. This makes the Native American/Other share of the population of Hamilton 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, Hamilton County is ranked #8 in terms of Native American/Other residents as a share of the population.

Hamilton County is more Native American/Other than neighboring Kenton County (0.6% Native American/Other), Campbell County (0.6% Native American/Other), and Clermont County (0.5% Native American/Other).

Hamilton County's Multiracial Population

35,981 residents of Hamilton County identify as Multiracial, or 4.3%. This makes the Multiracial share of the population of Hamilton County roughly similar to the Multiracial share of the population of Ohio (4.3% Multiracial). Of the 88 counties in Ohio, Hamilton County is ranked #25 in terms of Multiracial residents as a share of the population.

Hamilton County is more Multiracial than neighboring Campbell County (4% Multiracial). Hamilton County is less Multiracial than neighboring Butler County (4.6% Multiracial), Kenton County (4.8% Multiracial), Boone County (4.4% Multiracial), and Clermont County (4.4% Multiracial).

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