South Mountain, TX Demographics

A map of South Mountain's Population by Race

South Mountain, Texas has an estimated population of 328, a large decrease from the 411 recorded in the 2020 Census. The population is 75.9% White, 23.2% Hispanic, 0.6% Multiracial, 0.3% Asian, 0.0% Black, and 0.0% Native American/Other. This demographic dot map shows the population of South Mountain, with one dot drawn for each person counted by the Census, color-coded by race.

South Mountain 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 South Mountain, that probability was 33.4% in 2020 and 37.0% in the most recent ACS estimates.

South Mountain is ranked the 1420th most populous place in Texas, out of 1,863 places. This ranking is based on the Census definition of a place, which includes incorporated places like cities, towns, and villages, as well as unincorporated census-designated places (CDPs). South Mountain was ranked the 1321st most populous place in the 2020 Census.

South Mountain's White Population

249 residents of South Mountain, or 75.9% of the population, identify as White. The share of White residents in South Mountain is significantly higher than in Texas overall, where 39.1% of the population is White. South Mountain ranks 304th statewide in terms of White residents as a share of the population, out of 1,863 places.

Since the 2020 Census, South Mountain's White population has declined by an estimated 24.1%. White residents' share of South Mountain's population has decreased from 79.8% to 75.9%.

South Mountain is more White than neighboring Gatesville (49.9% White), and Flat (7.9% White). South Mountain is less White than neighboring Mound (84.2% White), Oglesby (80.1% White), and Mosheim (97.6% White).

South Mountain's Black Population

0 residents of South Mountain, or 0.0% of the population, identify as Black. The share of Black residents in South Mountain is considerably lower than in Texas overall, where 11.9% of the population is Black. South Mountain ranks 1347th statewide in terms of Black residents as a share of the population, out of 1,863 places.

Since the 2020 Census, South Mountain's Black population has declined by an estimated 100.0%. Black residents' share of South Mountain's population has remained roughly unchanged at 0.0%.

South Mountain is less Black than neighboring Gatesville (15.6% Black), and Oglesby (3.1% Black).

South Mountain's Asian Population

1 residents of South Mountain, or 0.3% of the population, identify as Asian. The share of Asian residents in South Mountain is lower than in Texas overall, where 5.5% of the population is Asian. South Mountain ranks 819th statewide in terms of Asian residents as a share of the population, out of 1,863 places.

Since the 2020 Census, South Mountain's Asian population has declined by an estimated 50.0%. Asian residents' share of South Mountain's population has remained roughly unchanged at 0.3%.

South Mountain is more Asian than neighboring Mound (0% Asian), Flat (0% Asian), Oglesby (0% Asian), and Mosheim (0% Asian). South Mountain is less Asian than neighboring Gatesville (1.3% Asian).

South Mountain's Hispanic Population

76 residents of South Mountain, or 23.2% of the population, identify as Hispanic. The share of Hispanic residents in South Mountain is significantly lower than in Texas overall, where 39.7% of the population is Hispanic. South Mountain ranks 1263rd statewide in terms of Hispanic residents as a share of the population, out of 1,863 places.

Since the 2020 Census, South Mountain's Hispanic population has grown by an estimated 8.6%. Hispanic residents' share of South Mountain's population has increased from 17.0% to 23.2%.

South Mountain is more Hispanic than neighboring Mound (0% Hispanic), Flat (1.7% Hispanic), Oglesby (13.9% Hispanic), and Mosheim (0% Hispanic). South Mountain is less Hispanic than neighboring Gatesville (26.4% Hispanic).

South Mountain's Native American/Other Population

0 residents of South Mountain, or 0.0% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in South Mountain is comparable to the share in Texas overall, where 0.6% of the population is Native American/Other. South Mountain ranks 1530th statewide in terms of Native American/Other residents as a share of the population, out of 1,863 places.

Since the 2020 Census, South Mountain's Native American/Other population has grown from 0 to an estimated 0. Native American/Other residents' share of South Mountain's population has remained roughly unchanged at 0.0%.

South Mountain is less Native American/Other than neighboring Gatesville (0.8% Native American/Other), and Oglesby (1.2% Native American/Other).

South Mountain's Multiracial Population

2 residents of South Mountain, or 0.6% of the population, identify as Multiracial. The share of Multiracial residents in South Mountain is slightly lower than in Texas overall, where 3.1% of the population is Multiracial. South Mountain ranks 1115th statewide in terms of Multiracial residents as a share of the population, out of 1,863 places.

Since the 2020 Census, South Mountain's Multiracial population has declined by an estimated 80.0%. Multiracial residents' share of South Mountain's population has decreased from 2.4% to 0.6%.

South Mountain is less Multiracial than neighboring Gatesville (6% Multiracial), Mound (15.8% Multiracial), Flat (90.4% Multiracial), Oglesby (1.7% Multiracial), and Mosheim (2.4% 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.