Twin Falls County Demographics

A map of Twin Falls County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	70,557	68,169	75.3%	75.7%
Hispanic	16,912	15,210	18.0%	16.9%
Multiracial	3,469	3,276	3.7%	3.6%
Asian	1,060	1,403	1.1%	1.6%
Native American/Other	970	967	1.0%	1.1%
Black	766	1,021	0.8%	1.1%

Twin Falls County, Idaho has an estimated population of 93,734, an increase from the 90,046 recorded in the 2020 Census. The population is 75.3% White, 18.0% Hispanic, 3.7% Multiracial, 1.1% Asian, 1.0% Native American/Other, and 0.8% Black. This demographic dot map shows the population of Twin Falls County, with one dot drawn for each person counted by the Census, color-coded by race.

Twin Falls is about as racially diverse as it was in the 2020 Census. It is 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 Twin Falls County, that probability was 39.6% in 2020 and 39.9% in the most recent ACS estimates.

Twin Falls County is ranked the 5th most populous county in Idaho, out of 44 counties. Twin Falls County was ranked the 5th most populous county in the 2020 Census.

Twin Falls County's White Population

70,557 residents of Twin Falls County, or 75.3% of the population, identify as White. The share of White residents in Twin Falls County is slightly lower than in Idaho overall, where 78.6% of the population is White. Twin Falls County ranks 32nd statewide in terms of White residents as a share of the population, out of 44 counties.

Since the 2020 Census, Twin Falls County's White population has grown by an estimated 3.5%. White residents' share of Twin Falls County's population has remained roughly unchanged at 75.3%.

Twin Falls County is more White than neighboring Jerome County (56.8% White), Gooding County (63.1% White), Lincoln County (62.2% White), and Cassia County (64.4% White). Twin Falls County is less White than neighboring Camas County (75.9% White).

Twin Falls County's Black Population

766 residents of Twin Falls County, or 0.8% of the population, identify as Black. The share of Black residents in Twin Falls County is comparable to the share in Idaho overall, where 0.7% of the population is Black. Twin Falls County ranks 4th statewide in terms of Black residents as a share of the population, out of 44 counties.

Since the 2020 Census, Twin Falls County's Black population has declined by an estimated 25.0%. Black residents' share of Twin Falls County's population has remained roughly unchanged at 0.8%.

Twin Falls County is more Black than neighboring Jerome County (0.1% Black), Gooding County (0.1% Black), Lincoln County (0.6% Black), Cassia County (0.5% Black), and Camas County (0% Black).

Twin Falls County's Asian Population

1,060 residents of Twin Falls County, or 1.1% of the population, identify as Asian. The share of Asian residents in Twin Falls County is comparable to the share in Idaho overall, where 1.3% of the population is Asian. Twin Falls County ranks 5th statewide in terms of Asian residents as a share of the population, out of 44 counties.

Since the 2020 Census, Twin Falls County's Asian population has declined by an estimated 24.4%. Asian residents' share of Twin Falls County's population has decreased from 1.6% to 1.1%.

Twin Falls County is more Asian than neighboring Jerome County (0% Asian), Gooding County (0.3% Asian), Lincoln County (0.3% Asian), Cassia County (0.3% Asian), and Camas County (0% Asian).

Twin Falls County's Hispanic Population

16,912 residents of Twin Falls County, or 18.0% of the population, identify as Hispanic. The share of Hispanic residents in Twin Falls County is slightly higher than in Idaho overall, where 13.6% of the population is Hispanic. Twin Falls County ranks 14th statewide in terms of Hispanic residents as a share of the population, out of 44 counties.

Since the 2020 Census, Twin Falls County's Hispanic population has grown by an estimated 11.2%. Hispanic residents' share of Twin Falls County's population has increased from 16.9% to 18.0%.

Twin Falls County is more Hispanic than neighboring Camas County (14% Hispanic). Twin Falls County is less Hispanic than neighboring Jerome County (39.2% Hispanic), Gooding County (31.5% Hispanic), Lincoln County (32.4% Hispanic), and Cassia County (30.1% Hispanic).

Twin Falls County's Native American/Other Population

970 residents of Twin Falls County, or 1.0% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Twin Falls County is comparable to the share in Idaho overall, where 1.5% of the population is Native American/Other. Twin Falls County ranks 25th statewide in terms of Native American/Other residents as a share of the population, out of 44 counties.

Since the 2020 Census, Twin Falls County's Native American/Other population has remained roughly the same. Native American/Other residents' share of Twin Falls County's population has remained roughly unchanged at 1.0%.

Twin Falls County is more Native American/Other than neighboring Jerome County (0.2% Native American/Other), and Lincoln County (0.6% Native American/Other). Twin Falls County is less Native American/Other than neighboring Gooding County (1.1% Native American/Other), Cassia County (1.6% Native American/Other), and Camas County (4.4% Native American/Other).

Twin Falls County's Multiracial Population

3,469 residents of Twin Falls County, or 3.7% of the population, identify as Multiracial. The share of Multiracial residents in Twin Falls County is comparable to the share in Idaho overall, where 4.2% of the population is Multiracial. Twin Falls County ranks 24th statewide in terms of Multiracial residents as a share of the population, out of 44 counties.

Since the 2020 Census, Twin Falls County's Multiracial population has grown by an estimated 5.9%. Multiracial residents' share of Twin Falls County's population has remained roughly unchanged at 3.7%.

Twin Falls County is more Multiracial than neighboring Jerome County (3.6% Multiracial), and Cassia County (3.3% Multiracial). Twin Falls County is less Multiracial than neighboring Gooding County (4% Multiracial), Lincoln County (3.9% Multiracial), and Camas 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.