Marion County Demographics

A map of Marion County's Population by Race

Marion County, Ohio had a population of 65,359 in 2020. It was 85.9% White, 6.2% Black, 0.5% Asian, 3.0% Hispanic, 0.5% Native American/Other, and 3.9% Multiracial. This map presents the population of Marion County, with one dot drawn for each person counted in the 2020 Census, color-coded by race.

Marion County is the 37th most populous county of the 88 counties in Ohio.

Marion County's White Population

56,114 residents of Marion County identify as White, or 85.9%. This makes the White share of the population of Marion County slightly larger than the White share of the population of Ohio (75.9% White). Of the 88 counties in Ohio, Marion County is ranked #62 in terms of White residents as a share of the population.

Marion County is more White than neighboring Delaware County (80.1% White), and Union County (84.9% White). Marion County is less White than neighboring Wyandot County (93.7% White), Crawford County (93.7% White), and Morrow County (93.8% White).

Marion County's Black Population

4,051 residents of Marion County identify as Black, or 6.2%. This makes the Black share of the population of Marion County slightly less than the Black share of the population of Ohio (12.3% Black). Of the 88 counties in Ohio, Marion County is ranked #18 in terms of Black residents as a share of the population.

Marion County is more Black than neighboring Wyandot County (0.4% Black), Delaware County (3.6% Black), Union County (2% Black), Crawford County (0.7% Black), and Morrow County (0.4% Black).

Marion County's Asian Population

358 residents of Marion County identify as Asian, or 0.5%. This makes the Asian share of the population of Marion County roughly similar to the Asian share of the population of Ohio (2.5% Asian). Of the 88 counties in Ohio, Marion County is ranked #39 in terms of Asian residents as a share of the population.

Marion County is more Asian than neighboring Wyandot County (0.4% Asian), Crawford County (0.3% Asian), and Morrow County (0.3% Asian). Marion County is less Asian than neighboring Delaware County (8.5% Asian), and Union County (6.4% Asian).

Marion County's Hispanic Population

1,956 residents of Marion County identify as Hispanic, or 3.0%. This makes the Hispanic share of the population of Marion County roughly similar to the Hispanic share of the population of Ohio (4.4% Hispanic). Of the 88 counties in Ohio, Marion County is ranked #31 in terms of Hispanic residents as a share of the population.

Marion County is more Hispanic than neighboring Wyandot County (2.9% Hispanic), Union County (2.4% Hispanic), Crawford County (1.5% Hispanic), and Morrow County (1.7% Hispanic). Marion County is less Hispanic than neighboring Delaware County (3.3% Hispanic).

Marion County's Native American/Other Population

322 residents of Marion 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 Marion 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, Marion County is ranked #37 in terms of Native American/Other residents as a share of the population.

Marion County is more Native American/Other than neighboring Wyandot County (0.3% Native American/Other), Crawford County (0.3% Native American/Other), and Morrow County (0.4% Native American/Other).

Marion County's Multiracial Population

2,558 residents of Marion County identify as Multiracial, or 3.9%. This makes the Multiracial share of the population of Marion County roughly similar to the Multiracial share of the population of Ohio (4.3% Multiracial). Of the 88 counties in Ohio, Marion County is ranked #35 in terms of Multiracial residents as a share of the population.

Marion County is more Multiracial than neighboring Wyandot County (2.3% Multiracial), Union County (3.7% Multiracial), Crawford County (3.4% Multiracial), and Morrow County (3.4% Multiracial). Marion County is less Multiracial than neighboring Delaware County (4.1% Multiracial).

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