Moniteau County Demographics

A map of Moniteau County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	13,444	13,688	88.1%	88.5%
Hispanic	895	864	5.9%	5.6%
Multiracial	449	514	2.9%	3.3%
Black	342	282	2.2%	1.8%
Asian	71	42	0.5%	0.3%
Native American/Other	61	83	0.4%	0.5%

Moniteau County, Missouri has an estimated population of 15,262, a slight decrease from the 15,473 recorded in the 2020 Census. The population is 88.1% White, 5.9% Hispanic, 2.9% Multiracial, 2.2% Black, 0.5% Asian, and 0.4% Native American/Other. This demographic dot map shows the population of Moniteau County, with one dot drawn for each person counted by the Census, color-coded by race.

Moniteau has become slightly more 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 Moniteau County, that probability was 21.3% in 2020 and 21.9% in the most recent ACS estimates.

Moniteau County is ranked the 66th most populous county in Missouri, out of 115 counties. Moniteau County was ranked the 67th most populous county in the 2020 Census.

Moniteau County's White Population

13,444 residents of Moniteau County, or 88.1% of the population, identify as White. The share of White residents in Moniteau County is considerably higher than in Missouri overall, where 76.3% of the population is White. Moniteau County ranks 75th statewide in terms of White residents as a share of the population, out of 115 counties.

Since the 2020 Census, Moniteau County's White population has declined by an estimated 1.8%. White residents' share of Moniteau County's population has remained roughly unchanged at 88.1%.

Moniteau County is more White than neighboring Cooper County (87.8% White), Cole County (79.2% White), and Boone County (75.8% White). Moniteau County is less White than neighboring Morgan County (91.9% White), and Miller County (93.3% White).

Moniteau County's Black Population

342 residents of Moniteau County, or 2.2% of the population, identify as Black. The share of Black residents in Moniteau County is lower than in Missouri overall, where 10.9% of the population is Black. Moniteau County ranks 45th statewide in terms of Black residents as a share of the population, out of 115 counties.

Since the 2020 Census, Moniteau County's Black population has grown by an estimated 21.3%. Black residents' share of Moniteau County's population has remained roughly unchanged at 2.2%.

Moniteau County is more Black than neighboring Morgan County (0.2% Black), and Miller County (1.1% Black). Moniteau County is less Black than neighboring Cooper County (5.6% Black), Cole County (9.7% Black), and Boone County (9.5% Black).

Moniteau County's Asian Population

71 residents of Moniteau County, or 0.5% of the population, identify as Asian. The share of Asian residents in Moniteau County is comparable to the share in Missouri overall, where 2.1% of the population is Asian. Moniteau County ranks 78th statewide in terms of Asian residents as a share of the population, out of 115 counties.

Since the 2020 Census, Moniteau County's Asian population has grown by an estimated 69.0%. Asian residents' share of Moniteau County's population has remained roughly unchanged at 0.5%.

Moniteau County is more Asian than neighboring Cooper County (0.1% Asian), Morgan County (0.4% Asian), and Miller County (0.4% Asian). Moniteau County is less Asian than neighboring Cole County (1.4% Asian), and Boone County (4.8% Asian).

Moniteau County's Hispanic Population

895 residents of Moniteau County, or 5.9% of the population, identify as Hispanic. The share of Hispanic residents in Moniteau County is comparable to the share in Missouri overall, where 5.2% of the population is Hispanic. Moniteau County ranks 16th statewide in terms of Hispanic residents as a share of the population, out of 115 counties.

Since the 2020 Census, Moniteau County's Hispanic population has grown by an estimated 3.6%. Hispanic residents' share of Moniteau County's population has remained roughly unchanged at 5.9%.

Moniteau County is more Hispanic than neighboring Cooper County (2.1% Hispanic), Cole County (3.6% Hispanic), Morgan County (2.6% Hispanic), Miller County (2.2% Hispanic), and Boone County (4.5% Hispanic).

Moniteau County's Native American/Other Population

61 residents of Moniteau County, or 0.4% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Moniteau County is comparable to the share in Missouri overall, where 0.7% of the population is Native American/Other. Moniteau County ranks 78th statewide in terms of Native American/Other residents as a share of the population, out of 115 counties.

Since the 2020 Census, Moniteau County's Native American/Other population has declined by an estimated 26.5%. Native American/Other residents' share of Moniteau County's population has remained roughly unchanged at 0.4%.

Moniteau County is more Native American/Other than neighboring Cooper County (0.2% Native American/Other), and Morgan County (0.2% Native American/Other). Moniteau County is less Native American/Other than neighboring Cole County (0.9% Native American/Other), Miller County (0.5% Native American/Other), and Boone County (0.6% Native American/Other).

Moniteau County's Multiracial Population

449 residents of Moniteau County, or 2.9% of the population, identify as Multiracial. The share of Multiracial residents in Moniteau County is comparable to the share in Missouri overall, where 4.8% of the population is Multiracial. Moniteau County ranks 97th statewide in terms of Multiracial residents as a share of the population, out of 115 counties.

Since the 2020 Census, Moniteau County's Multiracial population has declined by an estimated 12.6%. Multiracial residents' share of Moniteau County's population has remained roughly unchanged at 2.9%.

Moniteau County is more Multiracial than neighboring Miller County (2.6% Multiracial). Moniteau County is less Multiracial than neighboring Cooper County (4.1% Multiracial), Cole County (5.1% Multiracial), Morgan County (4.7% 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.