Boulder Creek, CA Demographics

A map of Boulder Creek's Population by Race

Boulder Creek, California has an estimated population of 4,632, a large decrease from the 5,429 recorded in the 2020 Census. The population is 80.9% White, 8.8% Hispanic, 6.0% Multiracial, 1.7% Asian, 1.7% Native American/Other, and 0.8% Black. This demographic dot map shows the population of Boulder Creek, with one dot drawn for each person counted by the Census, color-coded by race.

Boulder Creek has become considerably less 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 Boulder Creek, that probability was 39.8% in 2020 and 33.3% in the most recent ACS estimates.

Boulder Creek is ranked the 680th 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). Boulder Creek was ranked the 639th most populous place in the 2020 Census.

Boulder Creek's White Population

3,749 residents of Boulder Creek, or 80.9% of the population, identify as White. The share of White residents in Boulder Creek is significantly higher than in California overall, where 33.8% of the population is White. Boulder Creek ranks 362nd statewide in terms of White residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Boulder Creek's White population has declined by an estimated 9.5%. White residents' share of Boulder Creek's population has increased from 76.3% to 80.9%.

Boulder Creek is more White than neighboring Brookdale (68.3% White), Bonny Doon (75.5% White), and Zayante (57.6% White). Boulder Creek is less White than neighboring Ben Lomond (81.7% White), and Lompico (82.4% White).

Boulder Creek's Black Population

38 residents of Boulder Creek, or 0.8% of the population, identify as Black. The share of Black residents in Boulder Creek is slightly lower than in California overall, where 5.2% of the population is Black. Boulder Creek ranks 1039th statewide in terms of Black residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Boulder Creek's Black population has grown by an estimated 35.7%. Black residents' share of Boulder Creek's population has remained roughly unchanged at 0.8%.

Boulder Creek is more Black than neighboring Brookdale (0.7% Black), Ben Lomond (0% Black), Lompico (0% Black), Bonny Doon (0% Black), and Zayante (0% Black).

Boulder Creek's Asian Population

80 residents of Boulder Creek, or 1.7% of the population, identify as Asian. The share of Asian residents in Boulder Creek is considerably lower than in California overall, where 15.3% of the population is Asian. Boulder Creek ranks 802nd statewide in terms of Asian residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Boulder Creek's Asian population has declined by an estimated 31.6%. Asian residents' share of Boulder Creek's population has decreased from 2.2% to 1.7%.

Boulder Creek is more Asian than neighboring Brookdale (0% Asian), and Lompico (0.4% Asian). Boulder Creek is less Asian than neighboring Ben Lomond (2.1% Asian), Bonny Doon (4.1% Asian), and Zayante (6.8% Asian).

Boulder Creek's Hispanic Population

409 residents of Boulder Creek, or 8.8% of the population, identify as Hispanic. The share of Hispanic residents in Boulder Creek is significantly lower than in California overall, where 40.2% of the population is Hispanic. Boulder Creek ranks 1172nd statewide in terms of Hispanic residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Boulder Creek's Hispanic population has declined by an estimated 35.7%. Hispanic residents' share of Boulder Creek's population has decreased from 11.7% to 8.8%.

Boulder Creek is more Hispanic than neighboring Lompico (5.7% Hispanic). Boulder Creek is less Hispanic than neighboring Brookdale (23.2% Hispanic), Ben Lomond (11.7% Hispanic), Bonny Doon (11.6% Hispanic), and Zayante (20.1% Hispanic).

Boulder Creek's Native American/Other Population

80 residents of Boulder Creek, or 1.7% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Boulder Creek is comparable to the share in California overall, where 1.2% of the population is Native American/Other. Boulder Creek ranks 490th statewide in terms of Native American/Other residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Boulder Creek's Native American/Other population has declined by an estimated 15.8%. Native American/Other residents' share of Boulder Creek's population has remained roughly unchanged at 1.7%.

Boulder Creek is more Native American/Other than neighboring Brookdale (0% Native American/Other), Ben Lomond (0.3% Native American/Other), and Zayante (0% Native American/Other). Boulder Creek is less Native American/Other than neighboring Lompico (3.2% Native American/Other), and Bonny Doon (3.4% Native American/Other).

Boulder Creek's Multiracial Population

276 residents of Boulder Creek, or 6.0% of the population, identify as Multiracial. The share of Multiracial residents in Boulder Creek is comparable to the share in California overall, where 4.4% of the population is Multiracial. Boulder Creek ranks 175th statewide in terms of Multiracial residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Boulder Creek's Multiracial population has declined by an estimated 32.8%. Multiracial residents' share of Boulder Creek's population has decreased from 7.6% to 6.0%.

Boulder Creek is more Multiracial than neighboring Ben Lomond (4.2% Multiracial), and Bonny Doon (5.5% Multiracial). Boulder Creek is less Multiracial than neighboring Brookdale (7.8% Multiracial), Lompico (8.4% Multiracial), and Zayante (15.5% 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.