Martin County Demographics

A map of Martin County's Population by Race

Martin County, Texas has an estimated population of 5,218, a less than 1% change from the 5,237 recorded in the 2020 Census. The population is 47.7% Hispanic, 45.1% White, 2.8% Black, 2.7% Multiracial, 1.6% Native American/Other, and 0.1% Asian. This demographic dot map shows the population of Martin County, with one dot drawn for each person counted by the Census, color-coded by race.

Martin has become more racially diverse since 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 Martin County, that probability was 53.2% in 2020 and 56.7% in the most recent ACS estimates.

Martin County is ranked the 197th most populous county in Texas, out of 254 counties. Martin County was ranked the 200th most populous county in the 2020 Census.

Martin County's White Population

2,355 residents of Martin County, or 45.1% of the population, identify as White. The share of White residents in Martin County is higher than in Texas overall, where 39.1% of the population is White. Martin County ranks 153rd statewide in terms of White residents as a share of the population, out of 254 counties.

Since the 2020 Census, Martin County's White population has declined by an estimated 15.3%. White residents' share of Martin County's population has decreased from 53.1% to 45.1%.

Martin County is more White than neighboring Dawson County (35.2% White), Midland County (42.3% White), and Howard County (43.1% White). Martin County is less White than neighboring Glasscock County (66.2% White), and Borden County (90.2% White).

Martin County's Black Population

146 residents of Martin County, or 2.8% of the population, identify as Black. The share of Black residents in Martin County is lower than in Texas overall, where 11.9% of the population is Black. Martin County ranks 164th statewide in terms of Black residents as a share of the population, out of 254 counties.

Since the 2020 Census, Martin County's Black population has grown by an estimated 80.2%. Black residents' share of Martin County's population has increased from 1.5% to 2.8%.

Martin County is more Black than neighboring Glasscock County (0% Black), and Borden County (0.6% Black). Martin County is less Black than neighboring Dawson County (6.5% Black), Midland County (6.4% Black), and Howard County (4.5% Black).

Martin County's Asian Population

5 residents of Martin County, or 0.1% of the population, identify as Asian. The share of Asian residents in Martin County is lower than in Texas overall, where 5.5% of the population is Asian. Martin County ranks 225th statewide in terms of Asian residents as a share of the population, out of 254 counties.

Since the 2020 Census, Martin County's Asian population has declined by an estimated 44.4%. Asian residents' share of Martin County's population has remained roughly unchanged at 0.1%.

Martin County is more Asian than neighboring Glasscock County (0% Asian), and Borden County (0% Asian). Martin County is less Asian than neighboring Dawson County (0.5% Asian), Midland County (2.4% Asian), and Howard County (1% Asian).

Martin County's Hispanic Population

2,488 residents of Martin County, or 47.7% of the population, identify as Hispanic. The share of Hispanic residents in Martin County is higher than in Texas overall, where 39.7% of the population is Hispanic. Martin County ranks 74th statewide in terms of Hispanic residents as a share of the population, out of 254 counties.

Since the 2020 Census, Martin County's Hispanic population has grown by an estimated 10.3%. Hispanic residents' share of Martin County's population has increased from 43.1% to 47.7%.

Martin County is more Hispanic than neighboring Midland County (46% Hispanic), Glasscock County (27% Hispanic), and Borden County (8.4% Hispanic). Martin County is less Hispanic than neighboring Dawson County (55.8% Hispanic).

Martin County's Native American/Other Population

85 residents of Martin County, or 1.6% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Martin County is comparable to the share in Texas overall, where 0.6% of the population is Native American/Other. Martin County ranks 86th statewide in terms of Native American/Other residents as a share of the population, out of 254 counties.

Since the 2020 Census, Martin County's Native American/Other population has grown by an estimated 102.4%. Native American/Other residents' share of Martin County's population has increased from 0.8% to 1.6%.

Martin County is more Native American/Other than neighboring Dawson County (0.1% Native American/Other), Midland County (0.6% Native American/Other), Howard County (0.5% Native American/Other), Glasscock County (0% Native American/Other), and Borden County (0% Native American/Other).

Martin County's Multiracial Population

139 residents of Martin County, or 2.7% of the population, identify as Multiracial. The share of Multiracial residents in Martin County is comparable to the share in Texas overall, where 3.1% of the population is Multiracial. Martin County ranks 224th statewide in terms of Multiracial residents as a share of the population, out of 254 counties.

Since the 2020 Census, Martin County's Multiracial population has grown by an estimated 98.6%. Multiracial residents' share of Martin County's population has increased from 1.3% to 2.7%.

Martin County is more Multiracial than neighboring Dawson County (1.9% Multiracial), Midland County (2.3% Multiracial), and Borden County (0.8% Multiracial). Martin County is less Multiracial than neighboring Howard County (3.1% Multiracial), and Glasscock County (6.8% 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.