Alamo, TX Demographics

A map of Alamo's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
Hispanic	17,169	17,005	84.8%	87.2%
White	2,312	2,302	11.4%	11.8%
Black	712	28	3.5%	0.1%
Multiracial	43	67	0.2%	0.3%
Asian	19	27	0.1%	0.1%
Native American/Other	0	64	0.0%	0.3%

Alamo, Texas has an estimated population of 20,255, an increase from the 19,493 recorded in the 2020 Census. The population is 84.8% Hispanic, 11.4% White, 3.5% Black, 0.2% Multiracial, 0.1% Asian, and 0.0% Native American/Other. This demographic dot map shows the population of Alamo, with one dot drawn for each person counted by the Census, color-coded by race.

Alamo 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 Alamo, that probability was 22.5% in 2020 and 26.7% in the most recent ACS estimates.

Alamo is ranked the 158th 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). Alamo was ranked the 154th most populous place in the 2020 Census.

Alamo's White Population

2,312 residents of Alamo, or 11.4% of the population, identify as White. The share of White residents in Alamo is significantly lower than in Texas overall, where 39.1% of the population is White. Alamo ranks 1488th statewide in terms of White residents as a share of the population, out of 1,863 places.

Since the 2020 Census, Alamo's White population has remained roughly the same. White residents' share of Alamo's population has remained roughly unchanged at 11.4%.

Alamo is more White than neighboring South Alamo (4.4% White), San Juan (2.9% White), North Alamo (4.3% White), Donna (7.7% White), and Lopezville (0.5% White).

Alamo's Black Population

712 residents of Alamo, or 3.5% of the population, identify as Black. The share of Black residents in Alamo is lower than in Texas overall, where 11.9% of the population is Black. Alamo ranks 1401st statewide in terms of Black residents as a share of the population, out of 1,863 places.

Since the 2020 Census, Alamo's Black population has grown by an estimated 2442.9%. Black residents' share of Alamo's population has increased from 0.1% to 3.5%.

Alamo is more Black than neighboring South Alamo (0% Black), San Juan (0% Black), North Alamo (0% Black), Donna (0.1% Black), and Lopezville (0% Black).

Alamo's Asian Population

19 residents of Alamo, or 0.1% of the population, identify as Asian. The share of Asian residents in Alamo is lower than in Texas overall, where 5.5% of the population is Asian. Alamo ranks 1198th statewide in terms of Asian residents as a share of the population, out of 1,863 places.

Since the 2020 Census, Alamo's Asian population has declined by an estimated 29.6%. Asian residents' share of Alamo's population has remained roughly unchanged at 0.1%.

Alamo is more Asian than neighboring South Alamo (0% Asian), North Alamo (0% Asian), Donna (0% Asian), and Lopezville (0% Asian). Alamo is less Asian than neighboring San Juan (0.2% Asian).

Alamo's Hispanic Population

17,169 residents of Alamo, or 84.8% of the population, identify as Hispanic. The share of Hispanic residents in Alamo is significantly higher than in Texas overall, where 39.7% of the population is Hispanic. Alamo ranks 337th statewide in terms of Hispanic residents as a share of the population, out of 1,863 places.

Since the 2020 Census, Alamo's Hispanic population has remained roughly the same. Hispanic residents' share of Alamo's population has decreased from 87.2% to 84.8%.

Alamo is less Hispanic than neighboring South Alamo (95.6% Hispanic), San Juan (96.5% Hispanic), North Alamo (95.7% Hispanic), Donna (91.7% Hispanic), and Lopezville (98.7% Hispanic).

Alamo's Native American/Other Population

0 residents of Alamo, 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 Alamo is comparable to the share in Texas overall, where 0.6% of the population is Native American/Other. Alamo ranks 1296th statewide in terms of Native American/Other residents as a share of the population, out of 1,863 places.

Since the 2020 Census, Alamo's Native American/Other population has declined by an estimated 100.0%. Native American/Other residents' share of Alamo's population has remained roughly unchanged at 0.0%.

Alamo is less Native American/Other than neighboring San Juan (0.1% Native American/Other), and Donna (0.1% Native American/Other).

Alamo's Multiracial Population

43 residents of Alamo, or 0.2% of the population, identify as Multiracial. The share of Multiracial residents in Alamo is slightly lower than in Texas overall, where 3.1% of the population is Multiracial. Alamo ranks 1597th statewide in terms of Multiracial residents as a share of the population, out of 1,863 places.

Since the 2020 Census, Alamo's Multiracial population has declined by an estimated 35.8%. Multiracial residents' share of Alamo's population has remained roughly unchanged at 0.2%.

Alamo is more Multiracial than neighboring South Alamo (0% Multiracial), and North Alamo (0% Multiracial). Alamo is less Multiracial than neighboring San Juan (0.3% Multiracial), Donna (0.4% Multiracial), and Lopezville (0.8% 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.