Grant County Demographics

A map of Grant County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	50,089	50,250	49.2%	50.7%
Hispanic	44,645	42,401	43.9%	42.8%
Multiracial	4,166	3,345	4.1%	3.4%
Black	1,246	651	1.2%	0.7%
Asian	830	1,153	0.8%	1.2%
Native American/Other	823	1,323	0.8%	1.3%

Grant County, Washington has an estimated population of 101,799, a slight increase from the 99,123 recorded in the 2020 Census. The population is 49.2% White, 43.9% Hispanic, 4.1% Multiracial, 1.2% Black, 0.8% Asian, and 0.8% Native American/Other. This demographic dot map shows the population of Grant County, with one dot drawn for each person counted by the Census, color-coded by race.

Grant has become slightly more racially diverse since the 2020 Census. It is about as diverse as Washington overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Grant County, that probability was 55.9% in 2020 and 56.4% in the most recent ACS estimates.

Grant County is ranked the 13th most populous county in Washington, out of 39 counties. Grant County was ranked the 13th most populous county in the 2020 Census.

Grant County's White Population

50,089 residents of Grant County, or 49.2% of the population, identify as White. The share of White residents in Grant County is considerably lower than in Washington overall, where 63.1% of the population is White. Grant County ranks 36th statewide in terms of White residents as a share of the population, out of 39 counties.

Since the 2020 Census, Grant County's White population has remained roughly the same. White residents' share of Grant County's population has decreased from 50.7% to 49.2%.

Grant County is more White than neighboring Franklin County (37.1% White), and Adams County (31.1% White). Grant County is less White than neighboring Douglas County (57.9% White), Benton County (64.6% White), and Lincoln County (88.7% White).

Grant County's Black Population

1,246 residents of Grant County, or 1.2% of the population, identify as Black. The share of Black residents in Grant County is slightly lower than in Washington overall, where 3.8% of the population is Black. Grant County ranks 20th statewide in terms of Black residents as a share of the population, out of 39 counties.

Since the 2020 Census, Grant County's Black population has grown by an estimated 91.4%. Black residents' share of Grant County's population has increased from 0.7% to 1.2%.

Grant County is more Black than neighboring Douglas County (0.4% Black), Adams County (0.2% Black), and Lincoln County (0.5% Black). Grant County is less Black than neighboring Franklin County (1.9% Black), and Benton County (1.6% Black).

Grant County's Asian Population

830 residents of Grant County, or 0.8% of the population, identify as Asian. The share of Asian residents in Grant County is lower than in Washington overall, where 9.7% of the population is Asian. Grant County ranks 22nd statewide in terms of Asian residents as a share of the population, out of 39 counties.

Since the 2020 Census, Grant County's Asian population has declined by an estimated 28.0%. Asian residents' share of Grant County's population has remained roughly unchanged at 0.8%.

Grant County is more Asian than neighboring Adams County (0.6% Asian), and Lincoln County (0.5% Asian). Grant County is less Asian than neighboring Franklin County (1.7% Asian), and Benton County (3% Asian).

Grant County's Hispanic Population

44,645 residents of Grant County, or 43.9% of the population, identify as Hispanic. The share of Hispanic residents in Grant County is significantly higher than in Washington overall, where 14.4% of the population is Hispanic. Grant County ranks 4th statewide in terms of Hispanic residents as a share of the population, out of 39 counties.

Since the 2020 Census, Grant County's Hispanic population has grown by an estimated 5.3%. Hispanic residents' share of Grant County's population has increased from 42.8% to 43.9%.

Grant County is more Hispanic than neighboring Douglas County (35.5% Hispanic), Benton County (25.6% Hispanic), and Lincoln County (4.2% Hispanic). Grant County is less Hispanic than neighboring Franklin County (55.3% Hispanic), and Adams County (64.5% Hispanic).

Grant County's Native American/Other Population

823 residents of Grant County, or 0.8% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Grant County is comparable to the share in Washington overall, where 2.1% of the population is Native American/Other. Grant County ranks 33rd statewide in terms of Native American/Other residents as a share of the population, out of 39 counties.

Since the 2020 Census, Grant County's Native American/Other population has declined by an estimated 37.8%. Native American/Other residents' share of Grant County's population has decreased from 1.3% to 0.8%.

Grant County is less Native American/Other than neighboring Douglas County (1.1% Native American/Other), Franklin County (0.9% Native American/Other), Adams County (1% Native American/Other), Benton County (1.3% Native American/Other), and Lincoln County (2% Native American/Other).

Grant County's Multiracial Population

4,166 residents of Grant County, or 4.1% of the population, identify as Multiracial. The share of Multiracial residents in Grant County is slightly lower than in Washington overall, where 6.8% of the population is Multiracial. Grant County ranks 36th statewide in terms of Multiracial residents as a share of the population, out of 39 counties.

Since the 2020 Census, Grant County's Multiracial population has grown by an estimated 24.5%. Multiracial residents' share of Grant County's population has increased from 3.4% to 4.1%.

Grant County is more Multiracial than neighboring Franklin County (3.1% Multiracial), Adams County (2.6% Multiracial), and Benton County (3.9% Multiracial). Grant County is less Multiracial than neighboring Douglas County (4.4% Multiracial), and Lincoln County (4.2% 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.