Arroyo Grande, CA Demographics

A map of Arroyo Grande's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	12,440	12,714	67.7%	68.9%
Hispanic	3,851	3,646	21.0%	19.8%
Multiracial	1,269	1,061	6.9%	5.8%
Asian	694	685	3.8%	3.7%
Native American/Other	69	171	0.4%	0.9%
Black	49	164	0.3%	0.9%

Arroyo Grande, California has an estimated population of 18,372, a less than 1% change from the 18,441 recorded in the 2020 Census. The population is 67.7% White, 21.0% Hispanic, 6.9% Multiracial, 3.8% Asian, 0.4% Native American/Other, and 0.3% Black. This demographic dot map shows the population of Arroyo Grande, with one dot drawn for each person counted by the Census, color-coded by race.

Arroyo Grande 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 Arroyo Grande, that probability was 48.1% in 2020 and 49.1% in the most recent ACS estimates.

Arroyo Grande is ranked the 372nd 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). Arroyo Grande was ranked the 372nd most populous place in the 2020 Census.

Arroyo Grande's White Population

12,440 residents of Arroyo Grande, or 67.7% of the population, identify as White. The share of White residents in Arroyo Grande is significantly higher than in California overall, where 33.8% of the population is White. Arroyo Grande ranks 591st statewide in terms of White residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Arroyo Grande's White population has declined by an estimated 2.2%. White residents' share of Arroyo Grande's population has decreased from 68.9% to 67.7%.

Arroyo Grande is more White than neighboring Oceano (55.3% White), Grover Beach (53.7% White), and Callender (52% White). Arroyo Grande is less White than neighboring Los Berros (72.4% White), and Blacklake (88% White).

Arroyo Grande's Black Population

49 residents of Arroyo Grande, or 0.3% of the population, identify as Black. The share of Black residents in Arroyo Grande is slightly lower than in California overall, where 5.2% of the population is Black. Arroyo Grande ranks 782nd statewide in terms of Black residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Arroyo Grande's Black population has declined by an estimated 70.1%. Black residents' share of Arroyo Grande's population has decreased from 0.9% to 0.3%.

Arroyo Grande is more Black than neighboring Los Berros (0% Black), and Blacklake (0% Black). Arroyo Grande is less Black than neighboring Oceano (0.9% Black), Grover Beach (1.4% Black), and Callender (5.4% Black).

Arroyo Grande's Asian Population

694 residents of Arroyo Grande, or 3.8% of the population, identify as Asian. The share of Asian residents in Arroyo Grande is considerably lower than in California overall, where 15.3% of the population is Asian. Arroyo Grande ranks 583rd statewide in terms of Asian residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Arroyo Grande's Asian population has grown by an estimated 1.3%. Asian residents' share of Arroyo Grande's population has remained roughly unchanged at 3.8%.

Arroyo Grande is more Asian than neighboring Oceano (1% Asian), Grover Beach (2.9% Asian), and Los Berros (3.4% Asian). Arroyo Grande is less Asian than neighboring Callender (6.7% Asian), and Blacklake (7.6% Asian).

Arroyo Grande's Hispanic Population

3,851 residents of Arroyo Grande, or 21.0% of the population, identify as Hispanic. The share of Hispanic residents in Arroyo Grande is significantly lower than in California overall, where 40.2% of the population is Hispanic. Arroyo Grande ranks 870th statewide in terms of Hispanic residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Arroyo Grande's Hispanic population has grown by an estimated 5.6%. Hispanic residents' share of Arroyo Grande's population has increased from 19.8% to 21.0%.

Arroyo Grande is more Hispanic than neighboring Blacklake (2.4% Hispanic). Arroyo Grande is less Hispanic than neighboring Oceano (36% Hispanic), Grover Beach (38.1% Hispanic), Los Berros (24.1% Hispanic), and Callender (29.2% Hispanic).

Arroyo Grande's Native American/Other Population

69 residents of Arroyo Grande, or 0.4% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Arroyo Grande is comparable to the share in California overall, where 1.2% of the population is Native American/Other. Arroyo Grande ranks 1087th statewide in terms of Native American/Other residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Arroyo Grande's Native American/Other population has declined by an estimated 59.6%. Native American/Other residents' share of Arroyo Grande's population has decreased from 0.9% to 0.4%.

Arroyo Grande is more Native American/Other than neighboring Oceano (0.1% Native American/Other), and Los Berros (0% Native American/Other). Arroyo Grande is less Native American/Other than neighboring Grover Beach (1.9% Native American/Other), Callender (1.7% Native American/Other), and Blacklake (0.7% Native American/Other).

Arroyo Grande's Multiracial Population

1,269 residents of Arroyo Grande, or 6.9% of the population, identify as Multiracial. The share of Multiracial residents in Arroyo Grande is slightly higher than in California overall, where 4.4% of the population is Multiracial. Arroyo Grande ranks 533rd statewide in terms of Multiracial residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Arroyo Grande's Multiracial population has grown by an estimated 19.6%. Multiracial residents' share of Arroyo Grande's population has increased from 5.8% to 6.9%.

Arroyo Grande is more Multiracial than neighboring Oceano (6.6% Multiracial), Grover Beach (2% Multiracial), Los Berros (0% Multiracial), Callender (5% Multiracial), and Blacklake (1.2% 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.