Alamo, CA Demographics

A map of Alamo's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	10,470	11,379	72.3%	74.3%
Asian	1,752	1,784	12.1%	11.6%
Hispanic	967	1,115	6.7%	7.3%
Multiracial	854	792	5.9%	5.2%
Native American/Other	251	130	1.7%	0.8%
Black	194	114	1.3%	0.7%

Alamo, California has an estimated population of 14,488, a decrease from the 15,314 recorded in the 2020 Census. The population is 72.3% White, 12.1% Asian, 6.7% Hispanic, 5.9% Multiracial, 1.7% Native American/Other, and 1.3% Black. 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 California 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 42.6% in 2020 and 45.5% in the most recent ACS estimates.

Alamo is ranked the 410th most populous place in California, out of 1,618 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 402nd most populous place in the 2020 Census.

Alamo's White Population

10,470 residents of Alamo, or 72.3% of the population, identify as White. The share of White residents in Alamo is significantly higher than in California overall, where 33.8% of the population is White. Alamo ranks 428th statewide in terms of White residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Alamo's White population has declined by an estimated 8.0%. White residents' share of Alamo's population has decreased from 74.3% to 72.3%.

Alamo is more White than neighboring Walnut Creek (61.3% White). Alamo is less White than neighboring San Miguel CDP (Contra Costa County) (77.8% White), North Gate (86.2% White), and Shell Ridge (85.9% White).

Alamo's Black Population

194 residents of Alamo, or 1.3% of the population, identify as Black. The share of Black residents in Alamo is slightly lower than in California overall, where 5.2% of the population is Black. Alamo ranks 876th statewide in terms of Black residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Alamo's Black population has grown by an estimated 70.2%. Black residents' share of Alamo's population has increased from 0.7% to 1.3%.

Alamo is more Black than neighboring San Miguel CDP (Contra Costa County) (0.4% Black), Castle Hill (0% Black), North Gate (0% Black), and Shell Ridge (0% Black). Alamo is less Black than neighboring Walnut Creek (1.8% Black).

Alamo's Asian Population

1,752 residents of Alamo, or 12.1% of the population, identify as Asian. The share of Asian residents in Alamo is slightly lower than in California overall, where 15.3% of the population is Asian. Alamo ranks 262nd statewide in terms of Asian residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Alamo's Asian population has declined by an estimated 1.8%. Asian residents' share of Alamo's population has increased from 11.6% to 12.1%.

Alamo is more Asian than neighboring San Miguel CDP (Contra Costa County) (5.2% Asian), North Gate (1.7% Asian), and Shell Ridge (1.9% Asian). Alamo is less Asian than neighboring Castle Hill (15.7% Asian), and Walnut Creek (17.1% Asian).

Alamo's Hispanic Population

967 residents of Alamo, or 6.7% of the population, identify as Hispanic. The share of Hispanic residents in Alamo is significantly lower than in California overall, where 40.2% of the population is Hispanic. Alamo ranks 1422nd statewide in terms of Hispanic residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Alamo's Hispanic population has declined by an estimated 13.3%. Hispanic residents' share of Alamo's population has decreased from 7.3% to 6.7%.

Alamo is more Hispanic than neighboring San Miguel CDP (Contra Costa County) (5.8% Hispanic), Castle Hill (0% Hispanic), and North Gate (2.7% Hispanic). Alamo is less Hispanic than neighboring Walnut Creek (12.4% Hispanic), and Shell Ridge (10.2% Hispanic).

Alamo's Native American/Other Population

251 residents of Alamo, or 1.7% 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 California overall, where 1.2% of the population is Native American/Other. Alamo ranks 1165th statewide in terms of Native American/Other residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Alamo's Native American/Other population has grown by an estimated 93.1%. Native American/Other residents' share of Alamo's population has increased from 0.8% to 1.7%.

Alamo is more Native American/Other than neighboring San Miguel CDP (Contra Costa County) (0% Native American/Other), Castle Hill (0% Native American/Other), North Gate (0% Native American/Other), Walnut Creek (1% Native American/Other), and Shell Ridge (0% Native American/Other).

Alamo's Multiracial Population

854 residents of Alamo, or 5.9% of the population, identify as Multiracial. The share of Multiracial residents in Alamo is comparable to the share in California overall, where 4.4% of the population is Multiracial. Alamo ranks 679th statewide in terms of Multiracial residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Alamo's Multiracial population has grown by an estimated 7.8%. Multiracial residents' share of Alamo's population has increased from 5.2% to 5.9%.

Alamo is more Multiracial than neighboring Shell Ridge (2% Multiracial). Alamo is less Multiracial than neighboring San Miguel CDP (Contra Costa County) (10.8% Multiracial), Castle Hill (12% Multiracial), North Gate (9.3% Multiracial), and Walnut Creek (6.5% 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.