Diablo, CA Demographics

A map of Diablo's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	904	1,001	73.4%	79.8%
Hispanic	163	80	13.2%	6.4%
Native American/Other	83	5	6.7%	0.4%
Asian	63	100	5.1%	8.0%
Multiracial	19	61	1.5%	4.9%
Black	0	8	0.0%	0.6%

Diablo, California has an estimated population of 1,232, a slight decrease from the 1,255 recorded in the 2020 Census. The population is 73.4% White, 13.2% Hispanic, 6.7% Native American/Other, 5.1% Asian, 1.5% Multiracial, and 0.0% Black. This demographic dot map shows the population of Diablo, with one dot drawn for each person counted by the Census, color-coded by race.

Diablo has become considerably 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 Diablo, that probability was 35.1% in 2020 and 43.7% in the most recent ACS estimates.

Diablo is ranked the 1008th 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). Diablo was ranked the 1012th most populous place in the 2020 Census.

Diablo's White Population

904 residents of Diablo, or 73.4% of the population, identify as White. The share of White residents in Diablo is significantly higher than in California overall, where 33.8% of the population is White. Diablo ranks 246th statewide in terms of White residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Diablo's White population has declined by an estimated 9.7%. White residents' share of Diablo's population has decreased from 79.8% to 73.4%.

Diablo is more White than neighboring Danville (62.1% White), Blackhawk (59.9% White), Alamo (72.3% White), and San Ramon (32.9% White). Diablo is less White than neighboring North Gate (86.2% White).

Diablo's Black Population

0 residents of Diablo, or 0.0% of the population, identify as Black. The share of Black residents in Diablo is lower than in California overall, where 5.2% of the population is Black. Diablo ranks 953rd statewide in terms of Black residents as a share of the population, out of 1,618 places.

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

Diablo is less Black than neighboring Danville (0.5% Black), Blackhawk (5.9% Black), Alamo (1.3% Black), and San Ramon (3.3% Black).

Diablo's Asian Population

63 residents of Diablo, or 5.1% of the population, identify as Asian. The share of Asian residents in Diablo is considerably lower than in California overall, where 15.3% of the population is Asian. Diablo ranks 358th statewide in terms of Asian residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Diablo's Asian population has declined by an estimated 37.0%. Asian residents' share of Diablo's population has decreased from 8.0% to 5.1%.

Diablo is more Asian than neighboring North Gate (1.7% Asian). Diablo is less Asian than neighboring Danville (21.2% Asian), Blackhawk (22.7% Asian), Alamo (12.1% Asian), and San Ramon (49.5% Asian).

Diablo's Hispanic Population

163 residents of Diablo, or 13.2% of the population, identify as Hispanic. The share of Hispanic residents in Diablo is significantly lower than in California overall, where 40.2% of the population is Hispanic. Diablo ranks 1487th statewide in terms of Hispanic residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Diablo's Hispanic population has grown by an estimated 103.8%. Hispanic residents' share of Diablo's population has increased from 6.4% to 13.2%.

Diablo is more Hispanic than neighboring Danville (9.5% Hispanic), Blackhawk (6.9% Hispanic), Alamo (6.7% Hispanic), North Gate (2.7% Hispanic), and San Ramon (7.5% Hispanic).

Diablo's Native American/Other Population

83 residents of Diablo, or 6.7% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Diablo is higher than in California overall, where 1.2% of the population is Native American/Other. Diablo ranks 1466th statewide in terms of Native American/Other residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Diablo's Native American/Other population has grown by an estimated 1560.0%. Native American/Other residents' share of Diablo's population has increased from 0.4% to 6.7%.

Diablo is more Native American/Other than neighboring Danville (0.2% Native American/Other), Blackhawk (0.7% Native American/Other), Alamo (1.7% Native American/Other), North Gate (0% Native American/Other), and San Ramon (1% Native American/Other).

Diablo's Multiracial Population

19 residents of Diablo, or 1.5% of the population, identify as Multiracial. The share of Multiracial residents in Diablo is slightly lower than in California overall, where 4.4% of the population is Multiracial. Diablo ranks 754th statewide in terms of Multiracial residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Diablo's Multiracial population has declined by an estimated 68.9%. Multiracial residents' share of Diablo's population has decreased from 4.9% to 1.5%.

Diablo is less Multiracial than neighboring Danville (6.6% Multiracial), Blackhawk (3.8% Multiracial), Alamo (5.9% Multiracial), North Gate (9.3% Multiracial), and San Ramon (5.8% 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.