Hillsborough, CA Demographics

A map of Hillsborough's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	5,687	6,165	51.2%	54.1%
Asian	3,680	3,927	33.2%	34.5%
Multiracial	912	642	8.2%	5.6%
Hispanic	501	531	4.5%	4.7%
Native American/Other	263	79	2.4%	0.7%
Black	56	43	0.5%	0.4%

Hillsborough, California has an estimated population of 11,099, a slight decrease from the 11,387 recorded in the 2020 Census. The population is 51.2% White, 33.2% Asian, 8.2% Multiracial, 4.5% Hispanic, 2.4% Native American/Other, and 0.5% Black. This demographic dot map shows the population of Hillsborough, with one dot drawn for each person counted by the Census, color-coded by race.

Hillsborough 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 Hillsborough, that probability was 58.3% in 2020 and 61.8% in the most recent ACS estimates.

Hillsborough is ranked the 469th 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). Hillsborough was ranked the 464th most populous place in the 2020 Census.

Hillsborough's White Population

5,687 residents of Hillsborough, or 51.2% of the population, identify as White. The share of White residents in Hillsborough is significantly higher than in California overall, where 33.8% of the population is White. Hillsborough ranks 878th statewide in terms of White residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Hillsborough's White population has declined by an estimated 7.8%. White residents' share of Hillsborough's population has decreased from 54.1% to 51.2%.

Hillsborough is more White than neighboring Baywood Park (49.7% White), San Mateo (34.4% White), and Millbrae (29.4% White). Hillsborough is less White than neighboring Burlingame (51.3% White), and Highlands (51.9% White).

Hillsborough's Black Population

56 residents of Hillsborough, or 0.5% of the population, identify as Black. The share of Black residents in Hillsborough is slightly lower than in California overall, where 5.2% of the population is Black. Hillsborough ranks 1159th statewide in terms of Black residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Hillsborough's Black population has grown by an estimated 30.2%. Black residents' share of Hillsborough's population has remained roughly unchanged at 0.5%.

Hillsborough is more Black than neighboring Baywood Park (0.1% Black). Hillsborough is less Black than neighboring Burlingame (1% Black), Highlands (1.4% Black), San Mateo (1.4% Black), and Millbrae (0.8% Black).

Hillsborough's Asian Population

3,680 residents of Hillsborough, or 33.2% of the population, identify as Asian. The share of Asian residents in Hillsborough is significantly higher than in California overall, where 15.3% of the population is Asian. Hillsborough ranks 59th statewide in terms of Asian residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Hillsborough's Asian population has declined by an estimated 6.3%. Asian residents' share of Hillsborough's population has decreased from 34.5% to 33.2%.

Hillsborough is more Asian than neighboring Burlingame (29.2% Asian), Highlands (31.4% Asian), and San Mateo (28% Asian). Hillsborough is less Asian than neighboring Baywood Park (35.1% Asian), and Millbrae (48.1% Asian).

Hillsborough's Hispanic Population

501 residents of Hillsborough, or 4.5% of the population, identify as Hispanic. The share of Hispanic residents in Hillsborough is significantly lower than in California overall, where 40.2% of the population is Hispanic. Hillsborough ranks 1544th statewide in terms of Hispanic residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Hillsborough's Hispanic population has declined by an estimated 5.6%. Hispanic residents' share of Hillsborough's population has remained roughly unchanged at 4.5%.

Hillsborough is less Hispanic than neighboring Burlingame (12.2% Hispanic), Baywood Park (5.7% Hispanic), Highlands (6.9% Hispanic), San Mateo (27.6% Hispanic), and Millbrae (13.9% Hispanic).

Hillsborough's Native American/Other Population

263 residents of Hillsborough, or 2.4% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Hillsborough is comparable to the share in California overall, where 1.2% of the population is Native American/Other. Hillsborough ranks 1305th statewide in terms of Native American/Other residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Hillsborough's Native American/Other population has grown by an estimated 232.9%. Native American/Other residents' share of Hillsborough's population has increased from 0.7% to 2.4%.

Hillsborough is more Native American/Other than neighboring Burlingame (1.7% Native American/Other), and Highlands (0% Native American/Other). Hillsborough is less Native American/Other than neighboring Baywood Park (4% Native American/Other), San Mateo (2.7% Native American/Other), and Millbrae (3% Native American/Other).

Hillsborough's Multiracial Population

912 residents of Hillsborough, or 8.2% of the population, identify as Multiracial. The share of Multiracial residents in Hillsborough is slightly higher than in California overall, where 4.4% of the population is Multiracial. Hillsborough ranks 571st statewide in terms of Multiracial residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Hillsborough's Multiracial population has grown by an estimated 42.1%. Multiracial residents' share of Hillsborough's population has increased from 5.6% to 8.2%.

Hillsborough is more Multiracial than neighboring Burlingame (4.6% Multiracial), Baywood Park (5.4% Multiracial), San Mateo (6% Multiracial), and Millbrae (4.6% Multiracial). Hillsborough is less Multiracial than neighboring Highlands (8.4% 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.