San Diego, TX Demographics

A map of San Diego's Population by Race

San Diego, Texas has an estimated population of 3,675, a slight decrease from the 3,748 recorded in the 2020 Census. The population is 91.1% Hispanic, 8.8% White, 0.1% Black, 0.0% Asian, 0.0% Native American/Other, and 0.0% Multiracial. This demographic dot map shows the population of San Diego, with one dot drawn for each person counted by the Census, color-coded by race.

San Diego has become considerably less 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 San Diego, that probability was 37.1% in 2020 and 16.2% in the most recent ACS estimates.

San Diego is ranked the 515th 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). San Diego was ranked the 495th most populous place in the 2020 Census.

San Diego's White Population

324 residents of San Diego, or 8.8% of the population, identify as White. The share of White residents in San Diego is significantly lower than in Texas overall, where 39.1% of the population is White. San Diego ranks 1587th statewide in terms of White residents as a share of the population, out of 1,863 places.

Since the 2020 Census, San Diego's White population has grown by an estimated 52.1%. White residents' share of San Diego's population has increased from 5.7% to 8.8%.

San Diego is more White than neighboring Coyote Acres (2.7% White), Rancho Alegre (0% White), and Alice Acres (0% White). San Diego is less White than neighboring Loma Linda East CDP (Jim Wells County) (100% White), and Ben Bolt (22.7% White).

San Diego's Black Population

2 residents of San Diego, or 0.1% of the population, identify as Black. The share of Black residents in San Diego is considerably lower than in Texas overall, where 11.9% of the population is Black. San Diego ranks 1334th statewide in terms of Black residents as a share of the population, out of 1,863 places.

Since the 2020 Census, San Diego's Black population has declined by an estimated 80.0%. Black residents' share of San Diego's population has remained roughly unchanged at 0.1%.

San Diego is more Black than neighboring Loma Linda East CDP (Jim Wells County) (0% Black), Coyote Acres (0% Black), Rancho Alegre (0% Black), and Alice Acres (0% Black). San Diego is less Black than neighboring Ben Bolt (0.2% Black).

San Diego's Asian Population

0 residents of San Diego, or 0.0% of the population, identify as Asian. The share of Asian residents in San Diego is lower than in Texas overall, where 5.5% of the population is Asian. San Diego ranks 927th statewide in terms of Asian residents as a share of the population, out of 1,863 places.

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

San Diego's Hispanic Population

3,349 residents of San Diego, or 91.1% of the population, identify as Hispanic. The share of Hispanic residents in San Diego is significantly higher than in Texas overall, where 39.7% of the population is Hispanic. San Diego ranks 402nd statewide in terms of Hispanic residents as a share of the population, out of 1,863 places.

Since the 2020 Census, San Diego's Hispanic population has grown by an estimated 15.3%. Hispanic residents' share of San Diego's population has increased from 77.5% to 91.1%.

San Diego is more Hispanic than neighboring Loma Linda East CDP (Jim Wells County) (0% Hispanic), and Ben Bolt (77.1% Hispanic). San Diego is less Hispanic than neighboring Coyote Acres (95.9% Hispanic), Rancho Alegre (100% Hispanic), and Alice Acres (100% Hispanic).

San Diego's Native American/Other Population

0 residents of San Diego, 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 San Diego is comparable to the share in Texas overall, where 0.6% of the population is Native American/Other. San Diego ranks 1347th statewide in terms of Native American/Other residents as a share of the population, out of 1,863 places.

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

San Diego is less Native American/Other than neighboring Coyote Acres (1.4% Native American/Other).

San Diego's Multiracial Population

0 residents of San Diego, or 0.0% of the population, identify as Multiracial. The share of Multiracial residents in San Diego is slightly lower than in Texas overall, where 3.1% of the population is Multiracial. San Diego ranks 1st statewide in terms of Multiracial residents as a share of the population, out of 1,863 places.

Since the 2020 Census, San Diego's Multiracial population has declined by an estimated 100.0%. Multiracial residents' share of San Diego's population has decreased from 15.9% to 0.0%.

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.