Mercer County Demographics

A map of Mercer County's Population by Race

Mercer County, Missouri had a population of 3,538 in 2020. It was 93.0% White, 0.0% Black, 0.0% Asian, 4.4% Hispanic, 0.4% Native American/Other, and 2.2% Multiracial. This map presents the population of Mercer County, with one dot drawn for each person counted in the 2020 Census, color-coded by race.

Mercer County is the 114th most populous county of the 115 counties in Missouri.

Mercer County's White Population

3,291 residents of Mercer County identify as White, or 93.0%. This makes the White share of the population of Mercer County larger than the White share of the population of Missouri (75.8% White). Of the 115 counties in Missouri, Mercer County is ranked #20 in terms of White residents as a share of the population.

Mercer County is more White than neighboring Decatur County (91.7% White), and Sullivan County (75.1% White). Mercer County is less White than neighboring Wayne County (95.9% White), and Harrison County (93.4% White).

Mercer County's Black Population

0 residents of Mercer County identify as Black, or 0.0%. This makes the Black share of the population of Mercer County slightly less than the Black share of the population of Missouri (11.3% Black). Of the 115 counties in Missouri, Mercer County is ranked #113 in terms of Black residents as a share of the population.

Mercer County is less Black than neighboring Grundy County (0.5% Black), Decatur County (1.3% Black), Wayne County (0.2% Black), Harrison County (0.4% Black), and Sullivan County (3.5% Black).

Mercer County's Asian Population

0 residents of Mercer County identify as Asian, or 0.0%. This makes the Asian share of the population of Mercer County roughly similar to the Asian share of the population of Missouri (2.1% Asian). Of the 115 counties in Missouri, Mercer County is ranked #114 in terms of Asian residents as a share of the population.

Mercer County is less Asian than neighboring Grundy County (0.6% Asian), Decatur County (0.5% Asian), Wayne County (0.4% Asian), Harrison County (0.3% Asian), and Sullivan County (0.5% Asian).

Mercer County's Hispanic Population

155 residents of Mercer County identify as Hispanic, or 4.4%. This makes the Hispanic share of the population of Mercer County roughly similar to the Hispanic share of the population of Missouri (4.9% Hispanic). Of the 115 counties in Missouri, Mercer County is ranked #22 in terms of Hispanic residents as a share of the population.

Mercer County is more Hispanic than neighboring Grundy County (2.5% Hispanic), Decatur County (2.8% Hispanic), Wayne County (0.9% Hispanic), and Harrison County (2.1% Hispanic). Mercer County is less Hispanic than neighboring Sullivan County (17.6% Hispanic).

Mercer County's Native American/Other Population

15 residents of Mercer County identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other, or 0.4%. This makes the Native American/Other share of the population of Mercer County roughly similar to the Native American/Other share of the population of Missouri (0.9% Native American/Other). Of the 115 counties in Missouri, Mercer County is ranked #96 in terms of Native American/Other residents as a share of the population.

Mercer County is less Native American/Other than neighboring Grundy County (0.6% Native American/Other), Decatur County (0.8% Native American/Other), Harrison County (0.5% Native American/Other), and Sullivan County (0.7% Native American/Other).

Mercer County's Multiracial Population

77 residents of Mercer County identify as Multiracial, or 2.2%. This makes the Multiracial share of the population of Mercer County roughly similar to the Multiracial share of the population of Missouri (5% Multiracial). Of the 115 counties in Missouri, Mercer County is ranked #115 in terms of Multiracial residents as a share of the population.

Mercer County is less Multiracial than neighboring Grundy County (2.9% Multiracial), Decatur County (2.9% Multiracial), Harrison County (3.3% Multiracial), and Sullivan County (2.7% Multiracial).

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