Oso, WA Demographics

A map of Oso's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	188	144	76.7%	83.7%
Hispanic	39	10	15.9%	5.8%
Multiracial	18	11	7.3%	6.4%
Black	0	1	0.0%	0.6%
Asian	0	1	0.0%	0.6%
Native American/Other	0	5	0.0%	2.9%

Oso, Washington has an estimated population of 245, a dramatic increase from the 172 recorded in the 2020 Census. The population is 76.7% White, 15.9% Hispanic, 7.3% Multiracial, 0.0% Black, 0.0% Asian, and 0.0% Native American/Other. This demographic dot map shows the population of Oso, with one dot drawn for each person counted by the Census, color-coded by race.

Oso 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 Oso, that probability was 29.1% in 2020 and 38.0% in the most recent ACS estimates.

Oso is ranked the 539th 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). Oso was ranked the 577th most populous place in the 2020 Census.

Oso's White Population

188 residents of Oso, or 76.7% of the population, identify as White. The share of White residents in Oso is considerably higher than in Washington overall, where 63.1% of the population is White. Oso ranks 189th statewide in terms of White residents as a share of the population, out of 639 places.

Since the 2020 Census, Oso's White population has grown by an estimated 30.6%. White residents' share of Oso's population has decreased from 83.7% to 76.7%.

Oso is more White than neighboring Granite Falls (63.2% White). Oso is less White than neighboring Lake Cavanaugh (100% White), Arlington Heights (86.1% White), Canyon Creek (93.7% White), and Swede Heaven (98% White).

Oso's Black Population

0 residents of Oso, or 0.0% of the population, identify as Black. The share of Black residents in Oso is slightly lower than in Washington overall, where 3.8% of the population is Black. Oso ranks 325th statewide in terms of Black residents as a share of the population, out of 639 places.

Since the 2020 Census, Oso's Black population has declined by an estimated 100.0%. Black residents' share of Oso's population has decreased from 0.6% to 0.0%.

Oso is less Black than neighboring Canyon Creek (0.4% Black).

Oso's Asian Population

0 residents of Oso, or 0.0% of the population, identify as Asian. The share of Asian residents in Oso is lower than in Washington overall, where 9.7% of the population is Asian. Oso ranks 477th statewide in terms of Asian residents as a share of the population, out of 639 places.

Since the 2020 Census, Oso's Asian population has declined by an estimated 100.0%. Asian residents' share of Oso's population has decreased from 0.6% to 0.0%.

Oso is less Asian than neighboring Arlington Heights (1.7% Asian), Canyon Creek (0.4% Asian), and Granite Falls (15.6% Asian).

Oso's Hispanic Population

39 residents of Oso, or 15.9% of the population, identify as Hispanic. The share of Hispanic residents in Oso is comparable to the share in Washington overall, where 14.4% of the population is Hispanic. Oso ranks 417th statewide in terms of Hispanic residents as a share of the population, out of 639 places.

Since the 2020 Census, Oso's Hispanic population has grown by an estimated 290.0%. Hispanic residents' share of Oso's population has increased from 5.8% to 15.9%.

Oso is more Hispanic than neighboring Lake Cavanaugh (0% Hispanic), Arlington Heights (3.7% Hispanic), Canyon Creek (3.7% Hispanic), Granite Falls (6.4% Hispanic), and Swede Heaven (2% Hispanic).

Oso's Native American/Other Population

0 residents of Oso, or 0.0% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Oso is slightly lower than in Washington overall, where 2.1% of the population is Native American/Other. Oso ranks 160th statewide in terms of Native American/Other residents as a share of the population, out of 639 places.

Since the 2020 Census, Oso's Native American/Other population has declined by an estimated 100.0%. Native American/Other residents' share of Oso's population has decreased from 2.9% to 0.0%.

Oso is less Native American/Other than neighboring Arlington Heights (4.1% Native American/Other), Canyon Creek (1.2% Native American/Other), and Granite Falls (1.9% Native American/Other).

Oso's Multiracial Population

18 residents of Oso, or 7.3% of the population, identify as Multiracial. The share of Multiracial residents in Oso is comparable to the share in Washington overall, where 6.8% of the population is Multiracial. Oso ranks 302nd statewide in terms of Multiracial residents as a share of the population, out of 639 places.

Since the 2020 Census, Oso's Multiracial population has grown by an estimated 63.6%. Multiracial residents' share of Oso's population has increased from 6.4% to 7.3%.

Oso is more Multiracial than neighboring Lake Cavanaugh (0% Multiracial), Arlington Heights (4.3% Multiracial), Canyon Creek (0.6% Multiracial), and Swede Heaven (0% Multiracial). Oso is less Multiracial than neighboring Granite Falls (12.9% 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.