Walnut Creek, CA Demographics

A map of Walnut Creek's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	42,965	44,922	61.3%	64.1%
Asian	11,956	11,538	17.1%	16.5%
Hispanic	8,692	7,304	12.4%	10.4%
Multiracial	4,556	4,236	6.5%	6.0%
Black	1,245	1,477	1.8%	2.1%
Native American/Other	674	650	1.0%	0.9%

Walnut Creek, California has an estimated population of 70,088, a less than 1% change from the 70,127 recorded in the 2020 Census. The population is 61.3% White, 17.1% Asian, 12.4% Hispanic, 6.5% Multiracial, 1.8% Black, and 1.0% Native American/Other. This demographic dot map shows the population of Walnut Creek, with one dot drawn for each person counted by the Census, color-coded by race.

Walnut Creek 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 Walnut Creek, that probability was 54.8% in 2020 and 57.5% in the most recent ACS estimates.

Walnut Creek is ranked the 131st 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). Walnut Creek was ranked the 131st most populous place in the 2020 Census.

Walnut Creek's White Population

42,965 residents of Walnut Creek, or 61.3% of the population, identify as White. The share of White residents in Walnut Creek is significantly higher than in California overall, where 33.8% of the population is White. Walnut Creek ranks 694th statewide in terms of White residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Walnut Creek's White population has declined by an estimated 4.4%. White residents' share of Walnut Creek's population has decreased from 64.1% to 61.3%.

Walnut Creek is more White than neighboring Contra Costa Centre (40.8% White). Walnut Creek is less White than neighboring Shell Ridge (85.9% White), San Miguel CDP (Contra Costa County) (77.8% White), Castle Hill (72.3% White), and Acalanes Ridge (84.6% White).

Walnut Creek's Black Population

1,245 residents of Walnut Creek, or 1.8% of the population, identify as Black. The share of Black residents in Walnut Creek is slightly lower than in California overall, where 5.2% of the population is Black. Walnut Creek ranks 419th statewide in terms of Black residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Walnut Creek's Black population has declined by an estimated 15.7%. Black residents' share of Walnut Creek's population has remained roughly unchanged at 1.8%.

Walnut Creek is more Black than neighboring Shell Ridge (0% Black), San Miguel CDP (Contra Costa County) (0.4% Black), Castle Hill (0% Black), and Acalanes Ridge (0% Black). Walnut Creek is less Black than neighboring Contra Costa Centre (6% Black).

Walnut Creek's Asian Population

11,956 residents of Walnut Creek, or 17.1% of the population, identify as Asian. The share of Asian residents in Walnut Creek is comparable to the share in California overall, where 15.3% of the population is Asian. Walnut Creek ranks 172nd statewide in terms of Asian residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Walnut Creek's Asian population has grown by an estimated 3.6%. Asian residents' share of Walnut Creek's population has increased from 16.5% to 17.1%.

Walnut Creek is more Asian than neighboring Shell Ridge (1.9% Asian), San Miguel CDP (Contra Costa County) (5.2% Asian), Castle Hill (15.7% Asian), and Acalanes Ridge (6.7% Asian). Walnut Creek is less Asian than neighboring Contra Costa Centre (26.4% Asian).

Walnut Creek's Hispanic Population

8,692 residents of Walnut Creek, or 12.4% of the population, identify as Hispanic. The share of Hispanic residents in Walnut Creek is significantly lower than in California overall, where 40.2% of the population is Hispanic. Walnut Creek ranks 1248th statewide in terms of Hispanic residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Walnut Creek's Hispanic population has grown by an estimated 19.0%. Hispanic residents' share of Walnut Creek's population has increased from 10.4% to 12.4%.

Walnut Creek is more Hispanic than neighboring Shell Ridge (10.2% Hispanic), San Miguel CDP (Contra Costa County) (5.8% Hispanic), Castle Hill (0% Hispanic), and Acalanes Ridge (7.2% Hispanic). Walnut Creek is less Hispanic than neighboring Contra Costa Centre (19.4% Hispanic).

Walnut Creek's Native American/Other Population

674 residents of Walnut Creek, or 1.0% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Walnut Creek is comparable to the share in California overall, where 1.2% of the population is Native American/Other. Walnut Creek ranks 1088th statewide in terms of Native American/Other residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Walnut Creek's Native American/Other population has grown by an estimated 3.7%. Native American/Other residents' share of Walnut Creek's population has remained roughly unchanged at 1.0%.

Walnut Creek is more Native American/Other than neighboring Shell Ridge (0% Native American/Other), San Miguel CDP (Contra Costa County) (0% Native American/Other), Castle Hill (0% Native American/Other), and Acalanes Ridge (0.2% Native American/Other). Walnut Creek is less Native American/Other than neighboring Contra Costa Centre (2.2% Native American/Other).

Walnut Creek's Multiracial Population

4,556 residents of Walnut Creek, or 6.5% of the population, identify as Multiracial. The share of Multiracial residents in Walnut Creek is slightly higher than in California overall, where 4.4% of the population is Multiracial. Walnut Creek ranks 458th statewide in terms of Multiracial residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Walnut Creek's Multiracial population has grown by an estimated 7.6%. Multiracial residents' share of Walnut Creek's population has increased from 6.0% to 6.5%.

Walnut Creek is more Multiracial than neighboring Shell Ridge (2% Multiracial), Contra Costa Centre (5.2% Multiracial), and Acalanes Ridge (1.4% Multiracial). Walnut Creek is less Multiracial than neighboring San Miguel CDP (Contra Costa County) (10.8% Multiracial), and Castle Hill (12% 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.