Dimmit County Demographics

A map of Dimmit County's Population by Race

Dimmit County, Texas has an estimated population of 8,380, a slight decrease from the 8,615 recorded in the 2020 Census. The population is 87.1% Hispanic, 8.2% White, 2.8% Native American/Other, 1.1% Black, 0.5% Asian, and 0.2% Multiracial. This demographic dot map shows the population of Dimmit County, with one dot drawn for each person counted by the Census, color-coded by race.

Dimmit is about as racially diverse as it was in the 2020 Census. It is considerably less diverse than Texas overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Dimmit County, that probability was 23.4% in 2020 and 23.3% in the most recent ACS estimates.

Dimmit County is ranked the 176th most populous county in Texas, out of 254 counties. Dimmit County was ranked the 173rd most populous county in the 2020 Census.

Dimmit County's White Population

687 residents of Dimmit County, or 8.2% of the population, identify as White. The share of White residents in Dimmit County is significantly lower than in Texas overall, where 39.1% of the population is White. Dimmit County ranks 243rd statewide in terms of White residents as a share of the population, out of 254 counties.

Since the 2020 Census, Dimmit County's White population has declined by an estimated 23.5%. White residents' share of Dimmit County's population has decreased from 10.4% to 8.2%.

Dimmit County is more White than neighboring Zavala County (6% White), Maverick County (2.9% White), and Webb County (3.6% White). Dimmit County is less White than neighboring La Salle County (19.5% White), and Frio County (14.6% White).

Dimmit County's Black Population

94 residents of Dimmit County, or 1.1% of the population, identify as Black. The share of Black residents in Dimmit County is considerably lower than in Texas overall, where 11.9% of the population is Black. Dimmit County ranks 193rd statewide in terms of Black residents as a share of the population, out of 254 counties.

Since the 2020 Census, Dimmit County's Black population has grown by an estimated 30.6%. Black residents' share of Dimmit County's population has remained roughly unchanged at 1.1%.

Dimmit County is more Black than neighboring Zavala County (0.8% Black), Maverick County (0.2% Black), and Webb County (0.4% Black). Dimmit County is less Black than neighboring La Salle County (5.2% Black), and Frio County (5.1% Black).

Dimmit County's Asian Population

46 residents of Dimmit County, or 0.5% of the population, identify as Asian. The share of Asian residents in Dimmit County is slightly lower than in Texas overall, where 5.5% of the population is Asian. Dimmit County ranks 76th statewide in terms of Asian residents as a share of the population, out of 254 counties.

Since the 2020 Census, Dimmit County's Asian population has declined by an estimated 32.4%. Asian residents' share of Dimmit County's population has remained roughly unchanged at 0.5%.

Dimmit County is more Asian than neighboring La Salle County (0.1% Asian). Dimmit County is less Asian than neighboring Frio County (1.4% Asian).

Dimmit County's Hispanic Population

7,303 residents of Dimmit County, or 87.1% of the population, identify as Hispanic. The share of Hispanic residents in Dimmit County is significantly higher than in Texas overall, where 39.7% of the population is Hispanic. Dimmit County ranks 11th statewide in terms of Hispanic residents as a share of the population, out of 254 counties.

Since the 2020 Census, Dimmit County's Hispanic population has declined by an estimated 2.5%. Hispanic residents' share of Dimmit County's population has remained roughly unchanged at 87.1%.

Dimmit County is more Hispanic than neighboring La Salle County (71.8% Hispanic), and Frio County (77.8% Hispanic). Dimmit County is less Hispanic than neighboring Zavala County (92.6% Hispanic), Maverick County (94.8% Hispanic), and Webb County (95% Hispanic).

Dimmit County's Native American/Other Population

234 residents of Dimmit County, or 2.8% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Dimmit County is slightly higher than in Texas overall, where 0.6% of the population is Native American/Other. Dimmit County ranks 227th statewide in terms of Native American/Other residents as a share of the population, out of 254 counties.

Since the 2020 Census, Dimmit County's Native American/Other population has grown by an estimated 680.0%. Native American/Other residents' share of Dimmit County's population has increased from 0.3% to 2.8%.

Dimmit County is more Native American/Other than neighboring Zavala County (0% Native American/Other), Maverick County (1.5% Native American/Other), La Salle County (2.3% Native American/Other), Webb County (0.3% Native American/Other), and Frio County (0.4% Native American/Other).

Dimmit County's Multiracial Population

16 residents of Dimmit County, or 0.2% of the population, identify as Multiracial. The share of Multiracial residents in Dimmit County is slightly lower than in Texas overall, where 3.1% of the population is Multiracial. Dimmit County ranks 243rd statewide in terms of Multiracial residents as a share of the population, out of 254 counties.

Since the 2020 Census, Dimmit County's Multiracial population has declined by an estimated 73.3%. Multiracial residents' share of Dimmit County's population has remained roughly unchanged at 0.2%.

Dimmit County is more Multiracial than neighboring Zavala County (0% Multiracial). Dimmit County is less Multiracial than neighboring La Salle County (1.1% Multiracial), and Frio County (0.7% 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.