Costilla, NM Demographics

A map of Costilla's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
Hispanic	450	134	100.0%	75.7%
White	0	35	0.0%	19.8%
Black	0	0	0.0%	0.0%
Asian	0	1	0.0%	0.6%
Native American/Other	0	0	0.0%	0.0%
Multiracial	0	7	0.0%	4.0%

Costilla, New Mexico has an estimated population of 450, a dramatic increase from the 177 recorded in the 2020 Census. The population is 100.0% Hispanic, 0.0% White, 0.0% Black, 0.0% Asian, 0.0% Native American/Other, and 0.0% Multiracial. This demographic dot map shows the population of Costilla, with one dot drawn for each person counted by the Census, color-coded by race.

Costilla has become considerably less racially diverse since the 2020 Census. It is considerably less diverse than New Mexico overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Costilla, that probability was 38.6% in 2020 and 0.0% in the most recent ACS estimates.

Costilla is ranked the 267th most populous place in New Mexico, out of 528 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). Costilla was ranked the 371st most populous place in the 2020 Census.

Costilla's White Population

0 residents of Costilla, or 0.0% of the population, identify as White. The share of White residents in Costilla is significantly lower than in New Mexico overall, where 36% of the population is White. Costilla ranks 338th statewide in terms of White residents as a share of the population, out of 528 places.

Since the 2020 Census, Costilla's White population has declined by an estimated 100.0%. White residents' share of Costilla's population has decreased from 19.8% to 0.0%.

Costilla is less White than neighboring San Acacio (100% White), San Luis (11.8% White), Questa (17.9% White), Red River (88.9% White), and San Cristobal (100% White).

Costilla's Black Population

0 residents of Costilla, or 0.0% of the population, identify as Black. The share of Black residents in Costilla is comparable to the share in New Mexico overall, where 1.8% of the population is Black. Costilla ranks 304th statewide in terms of Black residents as a share of the population, out of 528 places.

Since the 2020 Census, Costilla's Black population has grown from 0 to an estimated 0. Black residents' share of Costilla's population has remained roughly unchanged at 0.0%.

Costilla is less Black than neighboring San Luis (1.6% Black), Questa (0.5% Black), and Red River (2.7% Black).

Costilla's Asian Population

0 residents of Costilla, or 0.0% of the population, identify as Asian. The share of Asian residents in Costilla is comparable to the share in New Mexico overall, where 1.6% of the population is Asian. Costilla ranks 147th statewide in terms of Asian residents as a share of the population, out of 528 places.

Since the 2020 Census, Costilla's Asian population has declined by an estimated 100.0%. Asian residents' share of Costilla's population has decreased from 0.6% to 0.0%.

Costilla is less Asian than neighboring San Luis (3.9% Asian), and Questa (1.9% Asian).

Costilla's Hispanic Population

450 residents of Costilla, or 100.0% of the population, identify as Hispanic. The share of Hispanic residents in Costilla is significantly higher than in New Mexico overall, where 48.4% of the population is Hispanic. Costilla ranks 104th statewide in terms of Hispanic residents as a share of the population, out of 528 places.

Since the 2020 Census, Costilla's Hispanic population has grown by an estimated 235.8%. Hispanic residents' share of Costilla's population has increased from 75.7% to 100.0%.

Costilla is more Hispanic than neighboring San Acacio (0% Hispanic), San Luis (80.4% Hispanic), Questa (71.2% Hispanic), Red River (4.4% Hispanic), and San Cristobal (0% Hispanic).

Costilla's Native American/Other Population

0 residents of Costilla, 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 Costilla is lower than in New Mexico overall, where 9% of the population is Native American/Other. Costilla ranks 446th statewide in terms of Native American/Other residents as a share of the population, out of 528 places.

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

Costilla is less Native American/Other than neighboring Questa (8.4% Native American/Other).

Costilla's Multiracial Population

0 residents of Costilla, or 0.0% of the population, identify as Multiracial. The share of Multiracial residents in Costilla is slightly lower than in New Mexico overall, where 3.1% of the population is Multiracial. Costilla ranks 115th statewide in terms of Multiracial residents as a share of the population, out of 528 places.

Since the 2020 Census, Costilla's Multiracial population has declined by an estimated 100.0%. Multiracial residents' share of Costilla's population has decreased from 4.0% to 0.0%.

Costilla is less Multiracial than neighboring San Luis (2.3% Multiracial), and Red River (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.