Washington, IL Demographics

A map of Washington's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	14,914	14,769	93.7%	91.9%
Hispanic	423	377	2.7%	2.3%
Multiracial	299	543	1.9%	3.4%
Asian	188	174	1.2%	1.1%
Black	69	131	0.4%	0.8%
Native American/Other	26	77	0.2%	0.5%

Washington, Illinois has an estimated population of 15,919, a less than 1% change from the 16,071 recorded in the 2020 Census. The population is 93.7% White, 2.7% Hispanic, 1.9% Multiracial, 1.2% Asian, 0.4% Black, and 0.2% Native American/Other. This demographic dot map shows the population of Washington, with one dot drawn for each person counted by the Census, color-coded by race.

Washington has become less racially diverse since the 2020 Census. It is considerably less diverse than Illinois overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Washington, that probability was 15.4% in 2020 and 12.1% in the most recent ACS estimates.

Washington is ranked the 158th most populous place in Illinois, out of 1,461 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). Washington was ranked the 157th most populous place in the 2020 Census.

Washington's White Population

14,914 residents of Washington, or 93.7% of the population, identify as White. The share of White residents in Washington is significantly higher than in Illinois overall, where 58.1% of the population is White. Washington ranks 615th statewide in terms of White residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Washington's White population has remained roughly the same. White residents' share of Washington's population has increased from 91.9% to 93.7%.

Washington is more White than neighboring Morton (91.9% White), Metamora (92.4% White), and East Peoria (91% White). Washington is less White than neighboring Germantown Hills (96% White), and Deer Creek (98.3% White).

Washington's Black Population

69 residents of Washington, or 0.4% of the population, identify as Black. The share of Black residents in Washington is considerably lower than in Illinois overall, where 13.3% of the population is Black. Washington ranks 658th statewide in terms of Black residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Washington's Black population has declined by an estimated 47.3%. Black residents' share of Washington's population has remained roughly unchanged at 0.4%.

Washington is more Black than neighboring Germantown Hills (0% Black), Metamora (0% Black), and Deer Creek (0% Black). Washington is less Black than neighboring Morton (0.5% Black), and East Peoria (1.3% Black).

Washington's Asian Population

188 residents of Washington, or 1.2% of the population, identify as Asian. The share of Asian residents in Washington is slightly lower than in Illinois overall, where 5.9% of the population is Asian. Washington ranks 354th statewide in terms of Asian residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Washington's Asian population has grown by an estimated 8.0%. Asian residents' share of Washington's population has remained roughly unchanged at 1.2%.

Washington is more Asian than neighboring Germantown Hills (0% Asian), and Deer Creek (0.2% Asian). Washington is less Asian than neighboring Morton (2.3% Asian), and Metamora (2.3% Asian).

Washington's Hispanic Population

423 residents of Washington, or 2.7% of the population, identify as Hispanic. The share of Hispanic residents in Washington is significantly lower than in Illinois overall, where 18.8% of the population is Hispanic. Washington ranks 869th statewide in terms of Hispanic residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Washington's Hispanic population has grown by an estimated 12.2%. Hispanic residents' share of Washington's population has remained roughly unchanged at 2.7%.

Washington is more Hispanic than neighboring Morton (2% Hispanic), Metamora (2.4% Hispanic), and Deer Creek (1.2% Hispanic). Washington is less Hispanic than neighboring East Peoria (3.8% Hispanic).

Washington's Native American/Other Population

26 residents of Washington, or 0.2% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Washington is comparable to the share in Illinois overall, where 0.5% of the population is Native American/Other. Washington ranks 558th statewide in terms of Native American/Other residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Washington's Native American/Other population has declined by an estimated 66.2%. Native American/Other residents' share of Washington's population has remained roughly unchanged at 0.2%.

Washington is more Native American/Other than neighboring Germantown Hills (0% Native American/Other), Metamora (0% Native American/Other), East Peoria (0.1% Native American/Other), and Deer Creek (0% Native American/Other). Washington is less Native American/Other than neighboring Morton (0.7% Native American/Other).

Washington's Multiracial Population

299 residents of Washington, or 1.9% of the population, identify as Multiracial. The share of Multiracial residents in Washington is comparable to the share in Illinois overall, where 3.4% of the population is Multiracial. Washington ranks 778th statewide in terms of Multiracial residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Washington's Multiracial population has declined by an estimated 44.9%. Multiracial residents' share of Washington's population has decreased from 3.4% to 1.9%.

Washington is more Multiracial than neighboring Germantown Hills (1.3% Multiracial), and Deer Creek (0.3% Multiracial). Washington is less Multiracial than neighboring Morton (2.7% Multiracial), Metamora (2.9% Multiracial), and East Peoria (2.6% 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.