Dallas County Demographics

A map of Dallas County's Population by Race

Dallas County, Missouri has an estimated population of 17,551, a slight increase from the 17,071 recorded in the 2020 Census. The population is 93.1% White, 4.3% Multiracial, 2.3% Hispanic, 0.2% Black, 0.1% Native American/Other, and 0.0% Asian. This demographic dot map shows the population of Dallas County, with one dot drawn for each person counted by the Census, color-coded by race.

Dallas 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 Dallas County, that probability was 15.2% in 2020 and 13.1% in the most recent ACS estimates.

Dallas County is ranked the 62nd most populous county in Missouri, out of 115 counties. Dallas County was ranked the 63rd most populous county in the 2020 Census.

Dallas County's White Population

16,342 residents of Dallas County, or 93.1% of the population, identify as White. The share of White residents in Dallas County is significantly higher than in Missouri overall, where 76.3% of the population is White. Dallas County ranks 42nd statewide in terms of White residents as a share of the population, out of 115 counties.

Since the 2020 Census, Dallas County's White population has grown by an estimated 4.1%. White residents' share of Dallas County's population has increased from 91.9% to 93.1%.

Dallas County is more White than neighboring Polk County (90.9% White), Webster County (91.2% White), Camden County (92.1% White), and Laclede County (90.4% White). Dallas County is less White than neighboring Hickory County (93.4% White).

Dallas County's Black Population

33 residents of Dallas County, or 0.2% of the population, identify as Black. The share of Black residents in Dallas County is considerably lower than in Missouri overall, where 10.9% of the population is Black. Dallas County ranks 100th statewide in terms of Black residents as a share of the population, out of 115 counties.

Since the 2020 Census, Dallas County's Black population has declined by an estimated 25.0%. Black residents' share of Dallas County's population has remained roughly unchanged at 0.2%.

Dallas County is more Black than neighboring Hickory County (0.1% Black). Dallas County is less Black than neighboring Polk County (0.7% Black), Webster County (1.1% Black), Camden County (0.9% Black), and Laclede County (0.6% Black).

Dallas County's Asian Population

3 residents of Dallas County, or 0.0% of the population, identify as Asian. The share of Asian residents in Dallas County is slightly lower than in Missouri overall, where 2.1% of the population is Asian. Dallas County ranks 103rd statewide in terms of Asian residents as a share of the population, out of 115 counties.

Since the 2020 Census, Dallas County's Asian population has declined by an estimated 88.0%. Asian residents' share of Dallas County's population has remained roughly unchanged at 0.0%.

Dallas County is less Asian than neighboring Polk County (0.8% Asian), Hickory County (0.5% Asian), Webster County (0.1% Asian), Camden County (0.6% Asian), and Laclede County (0.8% Asian).

Dallas County's Hispanic Population

398 residents of Dallas County, or 2.3% of the population, identify as Hispanic. The share of Hispanic residents in Dallas County is slightly lower than in Missouri overall, where 5.2% of the population is Hispanic. Dallas County ranks 77th statewide in terms of Hispanic residents as a share of the population, out of 115 counties.

Since the 2020 Census, Dallas County's Hispanic population has grown by an estimated 24.4%. Hispanic residents' share of Dallas County's population has remained roughly unchanged at 2.3%.

Dallas County is more Hispanic than neighboring Hickory County (1.8% Hispanic). Dallas County is less Hispanic than neighboring Polk County (3% Hispanic), Camden County (3.5% Hispanic), and Laclede County (3% Hispanic).

Dallas County's Native American/Other Population

16 residents of Dallas County, or 0.1% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Dallas County is comparable to the share in Missouri overall, where 0.7% of the population is Native American/Other. Dallas County ranks 28th statewide in terms of Native American/Other residents as a share of the population, out of 115 counties.

Since the 2020 Census, Dallas County's Native American/Other population has declined by an estimated 89.3%. Native American/Other residents' share of Dallas County's population has decreased from 0.9% to 0.1%.

Dallas County is less Native American/Other than neighboring Polk County (1.2% Native American/Other), Webster County (0.6% Native American/Other), Camden County (0.2% Native American/Other), and Laclede County (0.8% Native American/Other).

Dallas County's Multiracial Population

759 residents of Dallas County, or 4.3% of the population, identify as Multiracial. The share of Multiracial residents in Dallas County is comparable to the share in Missouri overall, where 4.8% of the population is Multiracial. Dallas County ranks 42nd statewide in terms of Multiracial residents as a share of the population, out of 115 counties.

Since the 2020 Census, Dallas County's Multiracial population has declined by an estimated 9.2%. Multiracial residents' share of Dallas County's population has decreased from 4.9% to 4.3%.

Dallas County is more Multiracial than neighboring Polk County (3.3% Multiracial), Hickory County (4.2% Multiracial), and Camden County (2.8% Multiracial). Dallas County is less Multiracial than neighboring Webster County (4.6% Multiracial), and Laclede County (4.5% 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.