Lewis County Demographics

A map of Lewis County's Population by Race

Lewis County, Washington had a population of 82,149 in 2020. It was 79.7% White, 0.6% Black, 1.0% Asian, 10.7% Hispanic, 1.9% Native American/Other, and 6.0% Multiracial. This map presents the population of Lewis County, with one dot drawn for each person counted in the 2020 Census, color-coded by race.

Lewis County is the 16th most populous county of the 39 counties in Washington.

Lewis County's White Population

65,496 residents of Lewis County identify as White, or 79.7%. This makes the White share of the population of Lewis County larger than the White share of the population of Washington (63.8% White). Of the 39 counties in Washington, Lewis County is ranked #12 in terms of White residents as a share of the population.

Lewis County is more White than neighboring Cowlitz County (79.5% White), Pierce County (61.9% White), Thurston County (70.6% White), and Clark County (72.9% White). Lewis County is less White than neighboring Skamania County (83.6% White).

Lewis County's Black Population

530 residents of Lewis County identify as Black, or 0.6%. This makes the Black share of the population of Lewis County roughly similar to the Black share of the population of Washington (3.8% Black). Of the 39 counties in Washington, Lewis County is ranked #21 in terms of Black residents as a share of the population.

Lewis County is less Black than neighboring Cowlitz County (0.7% Black), Pierce County (6.8% Black), Thurston County (3% Black), and Clark County (2.2% Black).

Lewis County's Asian Population

796 residents of Lewis County identify as Asian, or 1.0%. This makes the Asian share of the population of Lewis County slightly less than the Asian share of the population of Washington (9.4% Asian). Of the 39 counties in Washington, Lewis County is ranked #28 in terms of Asian residents as a share of the population.

Lewis County is less Asian than neighboring Cowlitz County (1.6% Asian), Pierce County (6.7% Asian), Thurston County (5.7% Asian), and Clark County (4.8% Asian).

Lewis County's Hispanic Population

8,830 residents of Lewis County identify as Hispanic, or 10.7%. This makes the Hispanic share of the population of Lewis County roughly similar to the Hispanic share of the population of Washington (13.7% Hispanic). Of the 39 counties in Washington, Lewis County is ranked #16 in terms of Hispanic residents as a share of the population.

Lewis County is more Hispanic than neighboring Cowlitz County (9.8% Hispanic), Thurston County (9.8% Hispanic), and Skamania County (6.4% Hispanic). Lewis County is less Hispanic than neighboring Pierce County (12.1% Hispanic), and Clark County (11.7% Hispanic).

Lewis County's Native American/Other Population

1,538 residents of Lewis County identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other, or 1.9%. This makes the Native American/Other share of the population of Lewis County roughly similar to the Native American/Other share of the population of Washington (2.6% Native American/Other). Of the 39 counties in Washington, Lewis County is ranked #24 in terms of Native American/Other residents as a share of the population.

Lewis County is less Native American/Other than neighboring Cowlitz County (2.3% Native American/Other), Pierce County (3.6% Native American/Other), Thurston County (2.9% Native American/Other), Skamania County (2.3% Native American/Other), and Clark County (2.1% Native American/Other).

Lewis County's Multiracial Population

4,959 residents of Lewis County identify as Multiracial, or 6.0%. This makes the Multiracial share of the population of Lewis County roughly similar to the Multiracial share of the population of Washington (6.6% Multiracial). Of the 39 counties in Washington, Lewis County is ranked #18 in terms of Multiracial residents as a share of the population.

Lewis County is less Multiracial than neighboring Cowlitz County (6.2% Multiracial), Pierce County (8.8% Multiracial), Thurston County (7.9% Multiracial), Skamania County (6.2% Multiracial), and Clark County (6.4% Multiracial).

Source: 2020 Census State Redistricting Data and Census TIGER/Line Shapefiles.