Cassia County Demographics

A map of Cassia County's Population by Race

Cassia County, Idaho had a population of 24,655 in 2020. It was 67.0% White, 0.3% Black, 0.5% Asian, 29.1% Hispanic, 0.9% Native American/Other, and 2.1% Multiracial. This map presents the population of Cassia County, with one dot drawn for each person counted in the 2020 Census, color-coded by race.

Cassia County is the 15th most populous county of the 44 counties in Idaho.

Cassia County's White Population

16,522 residents of Cassia County identify as White, or 67.0%. This makes the White share of the population of Cassia County slightly less than the White share of the population of Idaho (78.9% White). Of the 44 counties in Idaho, Cassia County is ranked #38 in terms of White residents as a share of the population.

Cassia County is more White than neighboring Minidoka County (59.9% White), Jerome County (58.4% White), Power County (61.3% White), and Lincoln County (63.3% White). Cassia County is less White than neighboring Box Elder County (85.6% White).

Cassia County's Black Population

64 residents of Cassia County identify as Black, or 0.3%. This makes the Black share of the population of Cassia County roughly similar to the Black share of the population of Idaho (0.8% Black). Of the 44 counties in Idaho, Cassia County is ranked #14 in terms of Black residents as a share of the population.

Cassia County is more Black than neighboring Minidoka County (0.1% Black), Jerome County (0.2% Black), Power County (0.2% Black), and Lincoln County (0.1% Black).

Cassia County's Asian Population

131 residents of Cassia County identify as Asian, or 0.5%. This makes the Asian share of the population of Cassia County roughly similar to the Asian share of the population of Idaho (1.4% Asian). Of the 44 counties in Idaho, Cassia County is ranked #17 in terms of Asian residents as a share of the population.

Cassia County is more Asian than neighboring Minidoka County (0.2% Asian), Jerome County (0.3% Asian), Power County (0.2% Asian), and Lincoln County (0.2% Asian). Cassia County is less Asian than neighboring Box Elder County (0.8% Asian).

Cassia County's Hispanic Population

7,186 residents of Cassia County identify as Hispanic, or 29.1%. This makes the Hispanic share of the population of Cassia County larger than the Hispanic share of the population of Idaho (13% Hispanic). Of the 44 counties in Idaho, Cassia County is ranked #7 in terms of Hispanic residents as a share of the population.

Cassia County is more Hispanic than neighboring Box Elder County (9.6% Hispanic). Cassia County is less Hispanic than neighboring Minidoka County (36.6% Hispanic), Jerome County (37.9% Hispanic), Power County (33.3% Hispanic), and Lincoln County (32% Hispanic).

Cassia County's Native American/Other Population

231 residents of Cassia County identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other, or 0.9%. This makes the Native American/Other share of the population of Cassia County roughly similar to the Native American/Other share of the population of Idaho (1.7% Native American/Other). Of the 44 counties in Idaho, Cassia County is ranked #31 in terms of Native American/Other residents as a share of the population.

Cassia County is more Native American/Other than neighboring Minidoka County (0.7% Native American/Other), Jerome County (0.8% Native American/Other), and Lincoln County (0.6% Native American/Other). Cassia County is less Native American/Other than neighboring Power County (2.6% Native American/Other), and Box Elder County (1% Native American/Other).

Cassia County's Multiracial Population

521 residents of Cassia County identify as Multiracial, or 2.1%. This makes the Multiracial share of the population of Cassia County roughly similar to the Multiracial share of the population of Idaho (4.2% Multiracial). Of the 44 counties in Idaho, Cassia County is ranked #43 in terms of Multiracial residents as a share of the population.

Cassia County is less Multiracial than neighboring Minidoka County (2.4% Multiracial), Jerome County (2.4% Multiracial), Power County (2.4% Multiracial), Lincoln County (3.8% Multiracial), and Box Elder County (2.8% Multiracial).

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