Mill Valley, CA Demographics

A map of Mill Valley's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	11,224	11,439	80.1%	80.4%
Asian	1,165	846	8.3%	5.9%
Multiracial	691	842	4.9%	5.9%
Hispanic	668	859	4.8%	6.0%
Native American/Other	165	123	1.2%	0.9%
Black	99	122	0.7%	0.9%

Mill Valley, California has an estimated population of 14,012, a slight decrease from the 14,231 recorded in the 2020 Census. The population is 80.1% White, 8.3% Asian, 4.9% Multiracial, 4.8% Hispanic, 1.2% Native American/Other, and 0.7% Black. This demographic dot map shows the population of Mill Valley, with one dot drawn for each person counted by the Census, color-coded by race.

Mill Valley is about as racially diverse as it was in 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 Mill Valley, that probability was 34.3% in 2020 and 34.6% in the most recent ACS estimates.

Mill Valley is ranked the 417th 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). Mill Valley was ranked the 413th most populous place in the 2020 Census.

Mill Valley's White Population

11,224 residents of Mill Valley, or 80.1% of the population, identify as White. The share of White residents in Mill Valley is significantly higher than in California overall, where 33.8% of the population is White. Mill Valley ranks 221st statewide in terms of White residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Mill Valley's White population has declined by an estimated 1.9%. White residents' share of Mill Valley's population has remained roughly unchanged at 80.1%.

Mill Valley is more White than neighboring Tamalpais-Homestead Valley (76.2% White), Larkspur (73.2% White), Corte Madera (70.2% White), and Strawberry CDP (Marin County) (66.7% White). Mill Valley is less White than neighboring Alto (80.6% White).

Mill Valley's Black Population

99 residents of Mill Valley, or 0.7% of the population, identify as Black. The share of Black residents in Mill Valley is slightly lower than in California overall, where 5.2% of the population is Black. Mill Valley ranks 804th statewide in terms of Black residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Mill Valley's Black population has declined by an estimated 18.9%. Black residents' share of Mill Valley's population has remained roughly unchanged at 0.7%.

Mill Valley is more Black than neighboring Larkspur (0.1% Black). Mill Valley is less Black than neighboring Alto (1.5% Black), Tamalpais-Homestead Valley (1.3% Black), Corte Madera (1.5% Black), and Strawberry CDP (Marin County) (0.8% Black).

Mill Valley's Asian Population

1,165 residents of Mill Valley, or 8.3% of the population, identify as Asian. The share of Asian residents in Mill Valley is lower than in California overall, where 15.3% of the population is Asian. Mill Valley ranks 427th statewide in terms of Asian residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Mill Valley's Asian population has grown by an estimated 37.7%. Asian residents' share of Mill Valley's population has increased from 5.9% to 8.3%.

Mill Valley is more Asian than neighboring Alto (5.7% Asian), Tamalpais-Homestead Valley (7.1% Asian), Larkspur (6.7% Asian), Corte Madera (6.8% Asian), and Strawberry CDP (Marin County) (5.9% Asian).

Mill Valley's Hispanic Population

668 residents of Mill Valley, or 4.8% of the population, identify as Hispanic. The share of Hispanic residents in Mill Valley is significantly lower than in California overall, where 40.2% of the population is Hispanic. Mill Valley ranks 1497th statewide in terms of Hispanic residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Mill Valley's Hispanic population has declined by an estimated 22.2%. Hispanic residents' share of Mill Valley's population has decreased from 6.0% to 4.8%.

Mill Valley is less Hispanic than neighboring Alto (12.3% Hispanic), Tamalpais-Homestead Valley (7.6% Hispanic), Larkspur (8.8% Hispanic), Corte Madera (12.1% Hispanic), and Strawberry CDP (Marin County) (16.8% Hispanic).

Mill Valley's Native American/Other Population

165 residents of Mill Valley, or 1.2% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Mill Valley is comparable to the share in California overall, where 1.2% of the population is Native American/Other. Mill Valley ranks 1153rd statewide in terms of Native American/Other residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Mill Valley's Native American/Other population has grown by an estimated 34.1%. Native American/Other residents' share of Mill Valley's population has remained roughly unchanged at 1.2%.

Mill Valley is more Native American/Other than neighboring Alto (0% Native American/Other). Mill Valley is less Native American/Other than neighboring Larkspur (1.6% Native American/Other), Corte Madera (2.3% Native American/Other), and Strawberry CDP (Marin County) (4.6% Native American/Other).

Mill Valley's Multiracial Population

691 residents of Mill Valley, or 4.9% of the population, identify as Multiracial. The share of Multiracial residents in Mill Valley is comparable to the share in California overall, where 4.4% of the population is Multiracial. Mill Valley ranks 498th statewide in terms of Multiracial residents as a share of the population, out of 1,618 places.

Since the 2020 Census, Mill Valley's Multiracial population has declined by an estimated 17.9%. Multiracial residents' share of Mill Valley's population has decreased from 5.9% to 4.9%.

Mill Valley is more Multiracial than neighboring Alto (0% Multiracial). Mill Valley is less Multiracial than neighboring Tamalpais-Homestead Valley (6.7% Multiracial), Larkspur (9.6% Multiracial), Corte Madera (7% Multiracial), and Strawberry CDP (Marin County) (5.2% 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.