Boulder, CO Demographics

A map of Boulder's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	83,051	82,700	78.0%	76.4%
Hispanic	11,368	11,440	10.7%	10.6%
Asian	5,740	6,934	5.4%	6.4%
Multiracial	4,631	4,773	4.4%	4.4%
Black	1,050	1,305	1.0%	1.2%
Native American/Other	593	1,098	0.6%	1.0%

Boulder, Colorado has an estimated population of 106,433, a slight decrease from the 108,250 recorded in the 2020 Census. The population is 78.0% White, 10.7% Hispanic, 5.4% Asian, 4.4% Multiracial, 1.0% Black, and 0.6% Native American/Other. This demographic dot map shows the population of Boulder, with one dot drawn for each person counted by the Census, color-coded by race.

Boulder has become less racially diverse since the 2020 Census. It is considerably less diverse than Colorado overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Boulder, that probability was 39.9% in 2020 and 37.5% in the most recent ACS estimates.

Boulder is ranked the 12th most populous place in Colorado, out of 482 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 was ranked the 12th most populous place in the 2020 Census.

Boulder's White Population

83,051 residents of Boulder, or 78.0% of the population, identify as White. The share of White residents in Boulder is considerably higher than in Colorado overall, where 64.8% of the population is White. Boulder ranks 273rd statewide in terms of White residents as a share of the population, out of 482 places.

Since the 2020 Census, Boulder's White population has remained roughly the same. White residents' share of Boulder's population has increased from 76.4% to 78.0%.

Boulder is less White than neighboring Valmont (100% White), Pine Brook Hill (78.6% White), Seven Hills (100% White), Paragon Estates (87% White), and Eldorado Springs (97.8% White).

Boulder's Black Population

1,050 residents of Boulder, or 1.0% of the population, identify as Black. The share of Black residents in Boulder is slightly lower than in Colorado overall, where 3.8% of the population is Black. Boulder ranks 96th statewide in terms of Black residents as a share of the population, out of 482 places.

Since the 2020 Census, Boulder's Black population has declined by an estimated 19.5%. Black residents' share of Boulder's population has remained roughly unchanged at 1.0%.

Boulder is more Black than neighboring Valmont (0% Black), Pine Brook Hill (0% Black), Seven Hills (0% Black), Paragon Estates (0% Black), and Eldorado Springs (0% Black).

Boulder's Asian Population

5,740 residents of Boulder, or 5.4% of the population, identify as Asian. The share of Asian residents in Boulder is slightly higher than in Colorado overall, where 3.2% of the population is Asian. Boulder ranks 17th statewide in terms of Asian residents as a share of the population, out of 482 places.

Since the 2020 Census, Boulder's Asian population has declined by an estimated 17.2%. Asian residents' share of Boulder's population has decreased from 6.4% to 5.4%.

Boulder is more Asian than neighboring Valmont (0% Asian), Seven Hills (0% Asian), Paragon Estates (2.5% Asian), and Eldorado Springs (0% Asian). Boulder is less Asian than neighboring Pine Brook Hill (10.5% Asian).

Boulder's Hispanic Population

11,368 residents of Boulder, or 10.7% of the population, identify as Hispanic. The share of Hispanic residents in Boulder is considerably lower than in Colorado overall, where 22.5% of the population is Hispanic. Boulder ranks 265th statewide in terms of Hispanic residents as a share of the population, out of 482 places.

Since the 2020 Census, Boulder's Hispanic population has remained roughly the same. Hispanic residents' share of Boulder's population has remained roughly unchanged at 10.7%.

Boulder is more Hispanic than neighboring Valmont (0% Hispanic), Pine Brook Hill (5.3% Hispanic), Seven Hills (0% Hispanic), Paragon Estates (8.4% Hispanic), and Eldorado Springs (0.9% Hispanic).

Boulder's Native American/Other Population

593 residents of Boulder, or 0.6% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Boulder is comparable to the share in Colorado overall, where 1% of the population is Native American/Other. Boulder ranks 235th statewide in terms of Native American/Other residents as a share of the population, out of 482 places.

Since the 2020 Census, Boulder's Native American/Other population has declined by an estimated 46.0%. Native American/Other residents' share of Boulder's population has remained roughly unchanged at 0.6%.

Boulder is more Native American/Other than neighboring Valmont (0% Native American/Other), Pine Brook Hill (0% Native American/Other), Seven Hills (0% Native American/Other), and Paragon Estates (0% Native American/Other).

Boulder's Multiracial Population

4,631 residents of Boulder, or 4.4% of the population, identify as Multiracial. The share of Multiracial residents in Boulder is comparable to the share in Colorado overall, where 4.6% of the population is Multiracial. Boulder ranks 201st statewide in terms of Multiracial residents as a share of the population, out of 482 places.

Since the 2020 Census, Boulder's Multiracial population has declined by an estimated 3.0%. Multiracial residents' share of Boulder's population has remained roughly unchanged at 4.4%.

Boulder is more Multiracial than neighboring Valmont (0% Multiracial), Seven Hills (0% Multiracial), Paragon Estates (2.1% Multiracial), and Eldorado Springs (0.6% Multiracial). Boulder is less Multiracial than neighboring Pine Brook Hill (5.5% 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.