Black Diamond, WA Demographics

A map of Black Diamond's Population by Race

Black Diamond, Washington has an estimated population of 5,961, a large increase from the 4,697 recorded in the 2020 Census. The population is 67.0% White, 17.6% Asian, 7.9% Hispanic, 6.4% Multiracial, 0.6% Native American/Other, and 0.4% Black. This demographic dot map shows the population of Black Diamond, with one dot drawn for each person counted by the Census, color-coded by race.

Black Diamond has become considerably more racially diverse since the 2020 Census. It is considerably less 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 Black Diamond, that probability was 37.8% in 2020 and 50.9% in the most recent ACS estimates.

Black Diamond is ranked the 183rd 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). Black Diamond was ranked the 200th most populous place in the 2020 Census.

Black Diamond's White Population

3,996 residents of Black Diamond, or 67.0% of the population, identify as White. The share of White residents in Black Diamond is slightly higher than in Washington overall, where 63.1% of the population is White. Black Diamond ranks 335th statewide in terms of White residents as a share of the population, out of 639 places.

Since the 2020 Census, Black Diamond's White population has grown by an estimated 9.3%. White residents' share of Black Diamond's population has decreased from 77.8% to 67.0%.

Black Diamond is more White than neighboring Covington (58.9% White). Black Diamond is less White than neighboring Maple Valley (67.7% White), Ravensdale (80.3% White), and Hobart (71.7% White).

Black Diamond's Black Population

24 residents of Black Diamond, or 0.4% of the population, identify as Black. The share of Black residents in Black Diamond is slightly lower than in Washington overall, where 3.8% of the population is Black. Black Diamond ranks 276th statewide in terms of Black residents as a share of the population, out of 639 places.

Since the 2020 Census, Black Diamond's Black population has declined by an estimated 29.4%. Black residents' share of Black Diamond's population has remained roughly unchanged at 0.4%.

Black Diamond is more Black than neighboring Ravensdale (0% Black). Black Diamond is less Black than neighboring Maple Valley (1.6% Black), Lake Morton-Berrydale (0.5% Black), Hobart (0.7% Black), and Covington (8.1% Black).

Black Diamond's Asian Population

1,051 residents of Black Diamond, or 17.6% of the population, identify as Asian. The share of Asian residents in Black Diamond is higher than in Washington overall, where 9.7% of the population is Asian. Black Diamond ranks 181st statewide in terms of Asian residents as a share of the population, out of 639 places.

Since the 2020 Census, Black Diamond's Asian population has grown by an estimated 714.7%. Asian residents' share of Black Diamond's population has increased from 2.7% to 17.6%.

Black Diamond is more Asian than neighboring Maple Valley (15.4% Asian), Ravensdale (5.1% Asian), Lake Morton-Berrydale (11% Asian), Hobart (4.9% Asian), and Covington (10.9% Asian).

Black Diamond's Hispanic Population

472 residents of Black Diamond, or 7.9% of the population, identify as Hispanic. The share of Hispanic residents in Black Diamond is lower than in Washington overall, where 14.4% of the population is Hispanic. Black Diamond ranks 215th statewide in terms of Hispanic residents as a share of the population, out of 639 places.

Since the 2020 Census, Black Diamond's Hispanic population has declined by an estimated 5.0%. Hispanic residents' share of Black Diamond's population has decreased from 10.6% to 7.9%.

Black Diamond is more Hispanic than neighboring Maple Valley (5% Hispanic), and Ravensdale (3.5% Hispanic). Black Diamond is less Hispanic than neighboring Lake Morton-Berrydale (11.4% Hispanic), Hobart (13.9% Hispanic), and Covington (11.2% Hispanic).

Black Diamond's Native American/Other Population

34 residents of Black Diamond, 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 Black Diamond is comparable to the share in Washington overall, where 2.1% of the population is Native American/Other. Black Diamond ranks 411th statewide in terms of Native American/Other residents as a share of the population, out of 639 places.

Since the 2020 Census, Black Diamond's Native American/Other population has declined by an estimated 50.0%. Native American/Other residents' share of Black Diamond's population has decreased from 1.4% to 0.6%.

Black Diamond is more Native American/Other than neighboring Ravensdale (0% Native American/Other). Black Diamond is less Native American/Other than neighboring Maple Valley (1.3% Native American/Other), Lake Morton-Berrydale (3.1% Native American/Other), Hobart (1.2% Native American/Other), and Covington (1.7% Native American/Other).

Black Diamond's Multiracial Population

384 residents of Black Diamond, or 6.4% of the population, identify as Multiracial. The share of Multiracial residents in Black Diamond is comparable to the share in Washington overall, where 6.8% of the population is Multiracial. Black Diamond ranks 276th statewide in terms of Multiracial residents as a share of the population, out of 639 places.

Since the 2020 Census, Black Diamond's Multiracial population has grown by an estimated 22.3%. Multiracial residents' share of Black Diamond's population has remained roughly unchanged at 6.4%.

Black Diamond is less Multiracial than neighboring Maple Valley (9% Multiracial), Ravensdale (11.1% Multiracial), Lake Morton-Berrydale (7% Multiracial), Hobart (7.6% Multiracial), and Covington (9.3% 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.