McClain County Demographics

A map of McClain County's Population by Race

McClain County, Oklahoma had a population of 41,662 in 2020. It was 73.7% White, 0.8% Black, 0.5% Asian, 8.9% Hispanic, 6.7% Native American/Other, and 9.4% Multiracial. This map presents the population of McClain County, with one dot drawn for each person counted in the 2020 Census, color-coded by race.

McClain County is the 24th most populous county of the 77 counties in Oklahoma.

McClain County's White Population

30,701 residents of McClain County identify as White, or 73.7%. This makes the White share of the population of McClain County larger than the White share of the population of Oklahoma (60.8% White). Of the 77 counties in Oklahoma, McClain County is ranked #18 in terms of White residents as a share of the population.

McClain County is more White than neighboring Cleveland County (66% White), Garvin County (70.9% White), Pottawatomie County (67.8% White), and Oklahoma County (51.2% White). McClain County is less White than neighboring Grady County (76.4% White).

McClain County's Black Population

346 residents of McClain County identify as Black, or 0.8%. This makes the Black share of the population of McClain County slightly less than the Black share of the population of Oklahoma (7.2% Black). Of the 77 counties in Oklahoma, McClain County is ranked #60 in terms of Black residents as a share of the population.

McClain County is less Black than neighboring Cleveland County (4.9% Black), Garvin County (2.1% Black), Grady County (2.3% Black), Pottawatomie County (3% Black), and Oklahoma County (14.8% Black).

McClain County's Asian Population

209 residents of McClain County identify as Asian, or 0.5%. This makes the Asian share of the population of McClain County roughly similar to the Asian share of the population of Oklahoma (2.3% Asian). Of the 77 counties in Oklahoma, McClain County is ranked #40 in terms of Asian residents as a share of the population.

McClain County is more Asian than neighboring Grady County (0.4% Asian). McClain County is less Asian than neighboring Cleveland County (4.3% Asian), Pottawatomie County (0.7% Asian), and Oklahoma County (3.5% Asian).

McClain County's Hispanic Population

3,699 residents of McClain County identify as Hispanic, or 8.9%. This makes the Hispanic share of the population of McClain County roughly similar to the Hispanic share of the population of Oklahoma (11.9% Hispanic). Of the 77 counties in Oklahoma, McClain County is ranked #29 in terms of Hispanic residents as a share of the population.

McClain County is more Hispanic than neighboring Grady County (6.4% Hispanic), and Pottawatomie County (5.9% Hispanic). McClain County is less Hispanic than neighboring Cleveland County (10.3% Hispanic), Garvin County (9.6% Hispanic), and Oklahoma County (19.3% Hispanic).

McClain County's Native American/Other Population

2,789 residents of McClain County identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other, or 6.7%. This makes the Native American/Other share of the population of McClain County roughly similar to the Native American/Other share of the population of Oklahoma (8.4% Native American/Other). Of the 77 counties in Oklahoma, McClain County is ranked #45 in terms of Native American/Other residents as a share of the population.

McClain County is more Native American/Other than neighboring Cleveland County (4.8% Native American/Other), Grady County (5.6% Native American/Other), and Oklahoma County (3.3% Native American/Other). McClain County is less Native American/Other than neighboring Garvin County (8.2% Native American/Other), and Pottawatomie County (12.3% Native American/Other).

McClain County's Multiracial Population

3,918 residents of McClain County identify as Multiracial, or 9.4%. This makes the Multiracial share of the population of McClain County roughly similar to the Multiracial share of the population of Oklahoma (9.4% Multiracial). Of the 77 counties in Oklahoma, McClain County is ranked #35 in terms of Multiracial residents as a share of the population.

McClain County is more Multiracial than neighboring Garvin County (8.7% Multiracial), Grady County (9% Multiracial), and Oklahoma County (7.9% Multiracial). McClain County is less Multiracial than neighboring Cleveland County (9.7% Multiracial), and Pottawatomie County (10.2% Multiracial).

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