Nez Perce County Demographics

A map of Nez Perce County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	36,486	35,436	85.5%	84.2%
Native American/Other	2,074	2,494	4.9%	5.9%
Hispanic	1,885	1,630	4.4%	3.9%
Multiracial	1,814	2,022	4.2%	4.8%
Asian	368	324	0.9%	0.8%
Black	70	184	0.2%	0.4%

Nez Perce County, Idaho has an estimated population of 42,697, a slight increase from the 42,090 recorded in the 2020 Census. The population is 85.5% White, 4.9% Native American/Other, 4.4% Hispanic, 4.2% Multiracial, 0.9% Asian, and 0.2% Black. This demographic dot map shows the population of Nez Perce County, with one dot drawn for each person counted by the Census, color-coded by race.

Nez Perce has become less racially diverse since the 2020 Census. It is considerably less diverse than Idaho overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Nez Perce County, that probability was 28.4% in 2020 and 26.4% in the most recent ACS estimates.

Nez Perce County is ranked the 10th most populous county in Idaho, out of 44 counties. Nez Perce County was ranked the 10th most populous county in the 2020 Census.

Nez Perce County's White Population

36,486 residents of Nez Perce County, or 85.5% of the population, identify as White. The share of White residents in Nez Perce County is higher than in Idaho overall, where 78.6% of the population is White. Nez Perce County ranks 23rd statewide in terms of White residents as a share of the population, out of 44 counties.

Since the 2020 Census, Nez Perce County's White population has grown by an estimated 3.0%. White residents' share of Nez Perce County's population has increased from 84.2% to 85.5%.

Nez Perce County is more White than neighboring Lewis County (81.7% White), and Latah County (84.5% White). Nez Perce County is less White than neighboring Asotin County (87.1% White), Garfield County (86.4% White), and Wallowa County (89.2% White).

Nez Perce County's Black Population

70 residents of Nez Perce County, or 0.2% of the population, identify as Black. The share of Black residents in Nez Perce County is comparable to the share in Idaho overall, where 0.7% of the population is Black. Nez Perce County ranks 10th statewide in terms of Black residents as a share of the population, out of 44 counties.

Since the 2020 Census, Nez Perce County's Black population has declined by an estimated 62.0%. Black residents' share of Nez Perce County's population has remained roughly unchanged at 0.2%.

Nez Perce County is less Black than neighboring Lewis County (1.1% Black), Asotin County (0.9% Black), Latah County (1% Black), Garfield County (0.8% Black), and Wallowa County (1.3% Black).

Nez Perce County's Asian Population

368 residents of Nez Perce County, or 0.9% of the population, identify as Asian. The share of Asian residents in Nez Perce County is comparable to the share in Idaho overall, where 1.3% of the population is Asian. Nez Perce County ranks 13th statewide in terms of Asian residents as a share of the population, out of 44 counties.

Since the 2020 Census, Nez Perce County's Asian population has grown by an estimated 13.6%. Asian residents' share of Nez Perce County's population has remained roughly unchanged at 0.9%.

Nez Perce County is more Asian than neighboring Wallowa County (0.3% Asian). Nez Perce County is less Asian than neighboring Lewis County (1% Asian), Asotin County (1.1% Asian), Latah County (2.1% Asian), and Garfield County (2.1% Asian).

Nez Perce County's Hispanic Population

1,885 residents of Nez Perce County, or 4.4% of the population, identify as Hispanic. The share of Hispanic residents in Nez Perce County is lower than in Idaho overall, where 13.6% of the population is Hispanic. Nez Perce County ranks 35th statewide in terms of Hispanic residents as a share of the population, out of 44 counties.

Since the 2020 Census, Nez Perce County's Hispanic population has grown by an estimated 15.6%. Hispanic residents' share of Nez Perce County's population has increased from 3.9% to 4.4%.

Nez Perce County is more Hispanic than neighboring Lewis County (4.3% Hispanic), and Wallowa County (4.2% Hispanic). Nez Perce County is less Hispanic than neighboring Asotin County (4.6% Hispanic), Latah County (5.2% Hispanic), and Garfield County (5% Hispanic).

Nez Perce County's Native American/Other Population

2,074 residents of Nez Perce County, or 4.9% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Nez Perce County is slightly higher than in Idaho overall, where 1.5% of the population is Native American/Other. Nez Perce County ranks 3rd statewide in terms of Native American/Other residents as a share of the population, out of 44 counties.

Since the 2020 Census, Nez Perce County's Native American/Other population has declined by an estimated 16.8%. Native American/Other residents' share of Nez Perce County's population has decreased from 5.9% to 4.9%.

Nez Perce County is more Native American/Other than neighboring Lewis County (2.2% Native American/Other), Asotin County (1.7% Native American/Other), Latah County (1.2% Native American/Other), Garfield County (0% Native American/Other), and Wallowa County (1% Native American/Other).

Nez Perce County's Multiracial Population

1,814 residents of Nez Perce County, or 4.2% of the population, identify as Multiracial. The share of Multiracial residents in Nez Perce County is comparable to the share in Idaho overall, where 4.2% of the population is Multiracial. Nez Perce County ranks 9th statewide in terms of Multiracial residents as a share of the population, out of 44 counties.

Since the 2020 Census, Nez Perce County's Multiracial population has declined by an estimated 10.3%. Multiracial residents' share of Nez Perce County's population has decreased from 4.8% to 4.2%.

Nez Perce County is more Multiracial than neighboring Wallowa County (4% Multiracial). Nez Perce County is less Multiracial than neighboring Lewis County (9.7% Multiracial), Asotin County (4.6% Multiracial), Latah County (6.1% Multiracial), and Garfield County (5.7% 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.