Mill Creek, WA Demographics

A map of Mill Creek's Population by Race

Mill Creek, Washington has an estimated population of 20,956, a less than 1% change from the 20,926 recorded in the 2020 Census. The population is 61.3% White, 20.3% Asian, 8.6% Hispanic, 5.4% Multiracial, 3.2% Black, and 1.2% Native American/Other. This demographic dot map shows the population of Mill Creek, with one dot drawn for each person counted by the Census, color-coded by race.

Mill Creek is about as racially diverse as it was in the 2020 Census. It is slightly more diverse than Washington overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Mill Creek, that probability was 57.6% in 2020 and 57.2% in the most recent ACS estimates.

Mill Creek is ranked the 72nd most populous place in Washington, out of 639 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 Creek was ranked the 70th most populous place in the 2020 Census.

Mill Creek's White Population

12,836 residents of Mill Creek, or 61.3% of the population, identify as White. The share of White residents in Mill Creek is comparable to the share in Washington overall, where 63.1% of the population is White. Mill Creek ranks 505th statewide in terms of White residents as a share of the population, out of 639 places.

Since the 2020 Census, Mill Creek's White population has remained roughly the same. White residents' share of Mill Creek's population has remained roughly unchanged at 61.3%.

Mill Creek is more White than neighboring Mill Creek East (40.1% White), Martha Lake (46.2% White), Eastmont (57.1% White), and Larch Way (44.3% White).

Mill Creek's Black Population

674 residents of Mill Creek, or 3.2% of the population, identify as Black. The share of Black residents in Mill Creek is comparable to the share in Washington overall, where 3.8% of the population is Black. Mill Creek ranks 85th statewide in terms of Black residents as a share of the population, out of 639 places.

Since the 2020 Census, Mill Creek's Black population has grown by an estimated 11.6%. Black residents' share of Mill Creek's population has remained roughly unchanged at 3.2%.

Mill Creek is more Black than neighboring Silver Firs (1.2% Black). Mill Creek is less Black than neighboring Martha Lake (3.8% Black), and Larch Way (3.8% Black).

Mill Creek's Asian Population

4,260 residents of Mill Creek, or 20.3% of the population, identify as Asian. The share of Asian residents in Mill Creek is considerably higher than in Washington overall, where 9.7% of the population is Asian. Mill Creek ranks 25th statewide in terms of Asian residents as a share of the population, out of 639 places.

Since the 2020 Census, Mill Creek's Asian population has grown by an estimated 2.3%. Asian residents' share of Mill Creek's population has remained roughly unchanged at 20.3%.

Mill Creek is more Asian than neighboring Silver Firs (18.3% Asian). Mill Creek is less Asian than neighboring Mill Creek East (41.1% Asian), Martha Lake (25.1% Asian), Eastmont (21.5% Asian), and Larch Way (38.4% Asian).

Mill Creek's Hispanic Population

1,803 residents of Mill Creek, or 8.6% of the population, identify as Hispanic. The share of Hispanic residents in Mill Creek is lower than in Washington overall, where 14.4% of the population is Hispanic. Mill Creek ranks 300th statewide in terms of Hispanic residents as a share of the population, out of 639 places.

Since the 2020 Census, Mill Creek's Hispanic population has grown by an estimated 7.1%. Hispanic residents' share of Mill Creek's population has increased from 8.0% to 8.6%.

Mill Creek is more Hispanic than neighboring Mill Creek East (7% Hispanic), and Larch Way (3.3% Hispanic). Mill Creek is less Hispanic than neighboring Martha Lake (13.6% Hispanic), and Silver Firs (9.2% Hispanic).

Mill Creek's Native American/Other Population

256 residents of Mill Creek, 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 Creek is comparable to the share in Washington overall, where 2.1% of the population is Native American/Other. Mill Creek ranks 483rd statewide in terms of Native American/Other residents as a share of the population, out of 639 places.

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

Mill Creek is more Native American/Other than neighboring Eastmont (1.1% Native American/Other). Mill Creek is less Native American/Other than neighboring Mill Creek East (1.9% Native American/Other), Martha Lake (3.7% Native American/Other), and Larch Way (5.5% Native American/Other).

Mill Creek's Multiracial Population

1,127 residents of Mill Creek, or 5.4% of the population, identify as Multiracial. The share of Multiracial residents in Mill Creek is comparable to the share in Washington overall, where 6.8% of the population is Multiracial. Mill Creek ranks 212th statewide in terms of Multiracial residents as a share of the population, out of 639 places.

Since the 2020 Census, Mill Creek's Multiracial population has declined by an estimated 23.1%. Multiracial residents' share of Mill Creek's population has decreased from 7.0% to 5.4%.

Mill Creek is more Multiracial than neighboring Larch Way (4.8% Multiracial). Mill Creek is less Multiracial than neighboring Mill Creek East (6.7% Multiracial), Martha Lake (7.4% Multiracial), Eastmont (8.4% Multiracial), and Silver Firs (8.9% 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.