Clark County Demographics

A map of Clark County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	536	463	63.1%	58.6%
Hispanic	244	288	28.7%	36.5%
Native American/Other	60	4	7.1%	0.5%
Multiracial	9	31	1.1%	3.9%
Black	0	3	0.0%	0.4%
Asian	0	1	0.0%	0.1%

Clark County, Idaho has an estimated population of 849, an increase from the 790 recorded in the 2020 Census. The population is 63.1% White, 28.7% Hispanic, 7.1% Native American/Other, 1.1% Multiracial, 0.0% Black, and 0.0% Asian. This demographic dot map shows the population of Clark County, with one dot drawn for each person counted by the Census, color-coded by race.

Clark has become slightly less racially diverse since the 2020 Census. It is considerably more 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 Clark County, that probability was 52.2% in 2020 and 51.4% in the most recent ACS estimates.

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

Clark County's White Population

536 residents of Clark County, or 63.1% of the population, identify as White. The share of White residents in Clark County is significantly lower than in Idaho overall, where 78.6% of the population is White. Clark County ranks 43rd statewide in terms of White residents as a share of the population, out of 44 counties.

Since the 2020 Census, Clark County's White population has grown by an estimated 15.8%. White residents' share of Clark County's population has increased from 58.6% to 63.1%.

Clark County is less White than neighboring Jefferson County (85.7% White), Madison County (83.5% White), Fremont County (82.7% White), Butte County (88.7% White), and Beaverhead County (89.1% White).

Clark County's Black Population

0 residents of Clark County, or 0.0% of the population, identify as Black. The share of Black residents in Clark County is comparable to the share in Idaho overall, where 0.7% of the population is Black. Clark County ranks 11th statewide in terms of Black residents as a share of the population, out of 44 counties.

Since the 2020 Census, Clark County's Black population has declined by an estimated 100.0%. Black residents' share of Clark County's population has remained roughly unchanged at 0.0%.

Clark County is less Black than neighboring Madison County (1% Black), Fremont County (0.3% Black), and Beaverhead County (0.5% Black).

Clark County's Asian Population

0 residents of Clark County, or 0.0% of the population, identify as Asian. The share of Asian residents in Clark County is comparable to the share in Idaho overall, where 1.3% of the population is Asian. Clark County ranks 43rd statewide in terms of Asian residents as a share of the population, out of 44 counties.

Since the 2020 Census, Clark County's Asian population has declined by an estimated 100.0%. Asian residents' share of Clark County's population has remained roughly unchanged at 0.0%.

Clark County is less Asian than neighboring Jefferson County (0.1% Asian), Madison County (1.5% Asian), Fremont County (0.1% Asian), and Beaverhead County (0.3% Asian).

Clark County's Hispanic Population

244 residents of Clark County, or 28.7% of the population, identify as Hispanic. The share of Hispanic residents in Clark County is significantly higher than in Idaho overall, where 13.6% of the population is Hispanic. Clark County ranks 3rd statewide in terms of Hispanic residents as a share of the population, out of 44 counties.

Since the 2020 Census, Clark County's Hispanic population has declined by an estimated 15.3%. Hispanic residents' share of Clark County's population has decreased from 36.5% to 28.7%.

Clark County is more Hispanic than neighboring Jefferson County (11% Hispanic), Madison County (9.8% Hispanic), Fremont County (12.4% Hispanic), Butte County (6.4% Hispanic), and Beaverhead County (5.2% Hispanic).

Clark County's Native American/Other Population

60 residents of Clark County, or 7.1% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Clark County is higher than in Idaho overall, where 1.5% of the population is Native American/Other. Clark County ranks 42nd statewide in terms of Native American/Other residents as a share of the population, out of 44 counties.

Since the 2020 Census, Clark County's Native American/Other population has grown by an estimated 1400.0%. Native American/Other residents' share of Clark County's population has increased from 0.5% to 7.1%.

Clark County is more Native American/Other than neighboring Jefferson County (0.6% Native American/Other), Madison County (1.4% Native American/Other), Fremont County (2.4% Native American/Other), Butte County (0.3% Native American/Other), and Beaverhead County (1.4% Native American/Other).

Clark County's Multiracial Population

9 residents of Clark County, or 1.1% of the population, identify as Multiracial. The share of Multiracial residents in Clark County is slightly lower than in Idaho overall, where 4.2% of the population is Multiracial. Clark County ranks 21st statewide in terms of Multiracial residents as a share of the population, out of 44 counties.

Since the 2020 Census, Clark County's Multiracial population has declined by an estimated 71.0%. Multiracial residents' share of Clark County's population has decreased from 3.9% to 1.1%.

Clark County is less Multiracial than neighboring Jefferson County (2.6% Multiracial), Madison County (2.8% Multiracial), Fremont County (2% Multiracial), Butte County (4.5% Multiracial), and Beaverhead County (3.5% 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.