Miami County Demographics

A map of Miami County's Population by Race

Miami County, Ohio had a population of 108,774 in 2020. It was 89.1% White, 2.4% Black, 1.5% Asian, 2.0% Hispanic, 0.6% Native American/Other, and 4.4% Multiracial. This map presents the population of Miami County, with one dot drawn for each person counted in the 2020 Census, color-coded by race.

Miami County is the 25th most populous county of the 88 counties in Ohio.

Miami County's White Population

96,964 residents of Miami County identify as White, or 89.1%. This makes the White share of the population of Miami County larger than the White share of the population of Ohio (75.9% White). Of the 88 counties in Ohio, Miami County is ranked #50 in terms of White residents as a share of the population.

Miami County is more White than neighboring Montgomery County (67.1% White), and Clark County (80.7% White). Miami County is less White than neighboring Shelby County (91.4% White), Darke County (94.4% White), and Champaign County (91.2% White).

Miami County's Black Population

2,559 residents of Miami County identify as Black, or 2.4%. This makes the Black share of the population of Miami County slightly less than the Black share of the population of Ohio (12.3% Black). Of the 88 counties in Ohio, Miami County is ranked #37 in terms of Black residents as a share of the population.

Miami County is more Black than neighboring Shelby County (1.7% Black), Darke County (0.6% Black), and Champaign County (1.8% Black). Miami County is less Black than neighboring Montgomery County (21% Black), and Clark County (8.9% Black).

Miami County's Asian Population

1,644 residents of Miami County identify as Asian, or 1.5%. This makes the Asian share of the population of Miami County roughly similar to the Asian share of the population of Ohio (2.5% Asian). Of the 88 counties in Ohio, Miami County is ranked #18 in terms of Asian residents as a share of the population.

Miami County is more Asian than neighboring Shelby County (0.9% Asian), Darke County (0.3% Asian), Clark County (0.7% Asian), and Champaign County (0.3% Asian). Miami County is less Asian than neighboring Montgomery County (2.4% Asian).

Miami County's Hispanic Population

2,199 residents of Miami County identify as Hispanic, or 2.0%. This makes the Hispanic share of the population of Miami County roughly similar to the Hispanic share of the population of Ohio (4.4% Hispanic). Of the 88 counties in Ohio, Miami County is ranked #50 in terms of Hispanic residents as a share of the population.

Miami County is more Hispanic than neighboring Shelby County (1.6% Hispanic), Darke County (1.7% Hispanic), and Champaign County (1.7% Hispanic). Miami County is less Hispanic than neighboring Montgomery County (3.9% Hispanic), and Clark County (3.9% Hispanic).

Miami County's Native American/Other Population

656 residents of Miami County identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other, or 0.6%. This makes the Native American/Other share of the population of Miami 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, Miami County is ranked #18 in terms of Native American/Other residents as a share of the population.

Miami County is more Native American/Other than neighboring Darke County (0.5% Native American/Other). Miami County is less Native American/Other than neighboring Montgomery County (0.7% Native American/Other), and Clark County (0.7% Native American/Other).

Miami County's Multiracial Population

4,752 residents of Miami County identify as Multiracial, or 4.4%. This makes the Multiracial share of the population of Miami County roughly similar to the Multiracial share of the population of Ohio (4.3% Multiracial). Of the 88 counties in Ohio, Miami County is ranked #23 in terms of Multiracial residents as a share of the population.

Miami County is more Multiracial than neighboring Shelby County (3.7% Multiracial), and Darke County (2.5% Multiracial). Miami County is less Multiracial than neighboring Montgomery County (4.9% Multiracial), and Clark County (5.1% Multiracial).

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