Audrain County Demographics

A map of Audrain County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	21,403	21,450	87.2%	85.9%
Black	1,091	1,304	4.4%	5.2%
Multiracial	1,009	1,217	4.1%	4.9%
Hispanic	786	731	3.2%	2.9%
Asian	139	114	0.6%	0.5%
Native American/Other	120	146	0.5%	0.6%

Audrain County, Missouri has an estimated population of 24,548, a slight decrease from the 24,962 recorded in the 2020 Census. The population is 87.2% White, 4.4% Black, 4.1% Multiracial, 3.2% Hispanic, 0.6% Asian, and 0.5% Native American/Other. This demographic dot map shows the population of Audrain County, with one dot drawn for each person counted by the Census, color-coded by race.

Audrain has become less racially diverse since the 2020 Census. It is considerably less diverse than Missouri overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Audrain County, that probability was 25.6% in 2020 and 23.5% in the most recent ACS estimates.

Audrain County is ranked the 44th most populous county in Missouri, out of 115 counties. Audrain County was ranked the 42nd most populous county in the 2020 Census.

Audrain County's White Population

21,403 residents of Audrain County, or 87.2% of the population, identify as White. The share of White residents in Audrain County is considerably higher than in Missouri overall, where 76.3% of the population is White. Audrain County ranks 84th statewide in terms of White residents as a share of the population, out of 115 counties.

Since the 2020 Census, Audrain County's White population has remained roughly the same. White residents' share of Audrain County's population has increased from 85.9% to 87.2%.

Audrain County is more White than neighboring Boone County (75.8% White). Audrain County is less White than neighboring Monroe County (91.6% White), Callaway County (88% White), Ralls County (92.8% White), and Montgomery County (92.3% White).

Audrain County's Black Population

1,091 residents of Audrain County, or 4.4% of the population, identify as Black. The share of Black residents in Audrain County is lower than in Missouri overall, where 10.9% of the population is Black. Audrain County ranks 21st statewide in terms of Black residents as a share of the population, out of 115 counties.

Since the 2020 Census, Audrain County's Black population has declined by an estimated 16.3%. Black residents' share of Audrain County's population has decreased from 5.2% to 4.4%.

Audrain County is more Black than neighboring Monroe County (3.5% Black), Callaway County (3.7% Black), Ralls County (1.8% Black), and Montgomery County (0.8% Black). Audrain County is less Black than neighboring Boone County (9.5% Black).

Audrain County's Asian Population

139 residents of Audrain County, or 0.6% of the population, identify as Asian. The share of Asian residents in Audrain County is comparable to the share in Missouri overall, where 2.1% of the population is Asian. Audrain County ranks 43rd statewide in terms of Asian residents as a share of the population, out of 115 counties.

Since the 2020 Census, Audrain County's Asian population has grown by an estimated 21.9%. Asian residents' share of Audrain County's population has remained roughly unchanged at 0.6%.

Audrain County is more Asian than neighboring Monroe County (0.4% Asian), Callaway County (0.1% Asian), Ralls County (0.2% Asian), and Montgomery County (0.1% Asian). Audrain County is less Asian than neighboring Boone County (4.8% Asian).

Audrain County's Hispanic Population

786 residents of Audrain County, or 3.2% of the population, identify as Hispanic. The share of Hispanic residents in Audrain County is comparable to the share in Missouri overall, where 5.2% of the population is Hispanic. Audrain County ranks 30th statewide in terms of Hispanic residents as a share of the population, out of 115 counties.

Since the 2020 Census, Audrain County's Hispanic population has grown by an estimated 7.5%. Hispanic residents' share of Audrain County's population has remained roughly unchanged at 3.2%.

Audrain County is more Hispanic than neighboring Monroe County (1.8% Hispanic), Callaway County (2.5% Hispanic), Ralls County (1.2% Hispanic), and Montgomery County (2.3% Hispanic). Audrain County is less Hispanic than neighboring Boone County (4.5% Hispanic).

Audrain County's Native American/Other Population

120 residents of Audrain County, or 0.5% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Audrain County is comparable to the share in Missouri overall, where 0.7% of the population is Native American/Other. Audrain County ranks 69th statewide in terms of Native American/Other residents as a share of the population, out of 115 counties.

Since the 2020 Census, Audrain County's Native American/Other population has declined by an estimated 17.8%. Native American/Other residents' share of Audrain County's population has remained roughly unchanged at 0.5%.

Audrain County is more Native American/Other than neighboring Ralls County (0.3% Native American/Other). Audrain County is less Native American/Other than neighboring Monroe County (0.8% Native American/Other), Callaway County (0.7% Native American/Other), and Boone County (0.6% Native American/Other).

Audrain County's Multiracial Population

1,009 residents of Audrain County, or 4.1% of the population, identify as Multiracial. The share of Multiracial residents in Audrain County is comparable to the share in Missouri overall, where 4.8% of the population is Multiracial. Audrain County ranks 43rd statewide in terms of Multiracial residents as a share of the population, out of 115 counties.

Since the 2020 Census, Audrain County's Multiracial population has declined by an estimated 17.1%. Multiracial residents' share of Audrain County's population has decreased from 4.9% to 4.1%.

Audrain County is more Multiracial than neighboring Monroe County (1.8% Multiracial), Ralls County (3.7% Multiracial), and Montgomery County (3.9% Multiracial). Audrain County is less Multiracial than neighboring Callaway County (4.9% Multiracial), and Boone County (4.8% Multiracial).

Sources: Most recent population estimates are from the 2020-2024 American Community Survey 5-Year Estimates. 2020 population counts and map data are from 2020 Census State Redistricting Data. Geographic data are from Census TIGER/Line Shapefiles.