San Lorenzo, CA Demographics

A map of San Lorenzo's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
Hispanic	12,290	12,488	42.1%	42.2%
Asian	9,140	8,248	31.3%	27.9%
White	5,304	5,824	18.2%	19.7%
Black	1,100	1,424	3.8%	4.8%
Multiracial	812	1,104	2.8%	3.7%
Native American/Other	525	493	1.8%	1.7%

San Lorenzo, California has an estimated population of 29,171, a slight decrease from the 29,581 recorded in the 2020 Census. The population is 42.1% Hispanic, 31.3% Asian, 18.2% White, 3.8% Black, 2.8% Multiracial, and 1.8% Native American/Other. This demographic dot map shows the population of San Lorenzo, with one dot drawn for each person counted by the Census, color-coded by race.

San Lorenzo has become less racially diverse since the 2020 Census. It is slightly 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 San Lorenzo, that probability was 70.1% in 2020 and 68.9% in the most recent ACS estimates.

San Lorenzo is ranked the 275th 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). San Lorenzo was ranked the 272nd most populous place in the 2020 Census.

San Lorenzo's White Population

5,304 residents of San Lorenzo, or 18.2% of the population, identify as White. The share of White residents in San Lorenzo is significantly lower than in California overall, where 33.8% of the population is White. San Lorenzo ranks 1301st statewide in terms of White residents as a share of the population, out of 1,618 places.

Since the 2020 Census, San Lorenzo's White population has declined by an estimated 8.9%. White residents' share of San Lorenzo's population has decreased from 19.7% to 18.2%.

San Lorenzo is more White than neighboring Ashland (11.1% White), and Hayward (12.7% White). San Lorenzo is less White than neighboring Cherryland (18.8% White), San Leandro (19.7% White), and Castro Valley (33.5% White).

San Lorenzo's Black Population

1,100 residents of San Lorenzo, or 3.8% of the population, identify as Black. The share of Black residents in San Lorenzo is comparable to the share in California overall, where 5.2% of the population is Black. San Lorenzo ranks 217th statewide in terms of Black residents as a share of the population, out of 1,618 places.

Since the 2020 Census, San Lorenzo's Black population has declined by an estimated 22.8%. Black residents' share of San Lorenzo's population has decreased from 4.8% to 3.8%.

San Lorenzo is less Black than neighboring Ashland (18.8% Black), Cherryland (7.5% Black), San Leandro (9.5% Black), Hayward (7.6% Black), and Castro Valley (8.7% Black).

San Lorenzo's Asian Population

9,140 residents of San Lorenzo, or 31.3% of the population, identify as Asian. The share of Asian residents in San Lorenzo is significantly higher than in California overall, where 15.3% of the population is Asian. San Lorenzo ranks 89th statewide in terms of Asian residents as a share of the population, out of 1,618 places.

Since the 2020 Census, San Lorenzo's Asian population has grown by an estimated 10.8%. Asian residents' share of San Lorenzo's population has increased from 27.9% to 31.3%.

San Lorenzo is more Asian than neighboring Ashland (20.9% Asian), Cherryland (14.5% Asian), and Hayward (30% Asian). San Lorenzo is less Asian than neighboring San Leandro (35.8% Asian), and Castro Valley (32.9% Asian).

San Lorenzo's Hispanic Population

12,290 residents of San Lorenzo, or 42.1% of the population, identify as Hispanic. The share of Hispanic residents in San Lorenzo is comparable to the share in California overall, where 40.2% of the population is Hispanic. San Lorenzo ranks 462nd statewide in terms of Hispanic residents as a share of the population, out of 1,618 places.

Since the 2020 Census, San Lorenzo's Hispanic population has declined by an estimated 1.6%. Hispanic residents' share of San Lorenzo's population has remained roughly unchanged at 42.1%.

San Lorenzo is more Hispanic than neighboring San Leandro (29.3% Hispanic), Hayward (41.3% Hispanic), and Castro Valley (19.8% Hispanic). San Lorenzo is less Hispanic than neighboring Ashland (43.6% Hispanic), and Cherryland (52.3% Hispanic).

San Lorenzo's Native American/Other Population

525 residents of San Lorenzo, or 1.8% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in San Lorenzo is comparable to the share in California overall, where 1.2% of the population is Native American/Other. San Lorenzo ranks 532nd statewide in terms of Native American/Other residents as a share of the population, out of 1,618 places.

Since the 2020 Census, San Lorenzo's Native American/Other population has grown by an estimated 6.5%. Native American/Other residents' share of San Lorenzo's population has remained roughly unchanged at 1.8%.

San Lorenzo is more Native American/Other than neighboring San Leandro (1.5% Native American/Other), and Castro Valley (0.5% Native American/Other). San Lorenzo is less Native American/Other than neighboring Ashland (2.1% Native American/Other), Cherryland (2.6% Native American/Other), and Hayward (3.5% Native American/Other).

San Lorenzo's Multiracial Population

812 residents of San Lorenzo, or 2.8% of the population, identify as Multiracial. The share of Multiracial residents in San Lorenzo is comparable to the share in California overall, where 4.4% of the population is Multiracial. San Lorenzo ranks 1040th statewide in terms of Multiracial residents as a share of the population, out of 1,618 places.

Since the 2020 Census, San Lorenzo's Multiracial population has declined by an estimated 26.4%. Multiracial residents' share of San Lorenzo's population has decreased from 3.7% to 2.8%.

San Lorenzo is less Multiracial than neighboring Ashland (3.5% Multiracial), Cherryland (4.2% Multiracial), San Leandro (4.2% Multiracial), Hayward (4.9% Multiracial), and Castro Valley (4.6% 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.