Bonneville County Demographics

A map of Bonneville County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	103,824	99,943	80.2%	80.6%
Hispanic	18,769	17,094	14.5%	13.8%
Multiracial	4,253	3,725	3.3%	3.0%
Native American/Other	1,124	1,217	0.9%	1.0%
Asian	1,109	1,392	0.9%	1.1%
Black	444	593	0.3%	0.5%

Bonneville County, Idaho has an estimated population of 129,523, an increase from the 123,964 recorded in the 2020 Census. The population is 80.2% White, 14.5% Hispanic, 3.3% Multiracial, 0.9% Asian, 0.9% Native American/Other, and 0.3% Black. This demographic dot map shows the population of Bonneville County, with one dot drawn for each person counted by the Census, color-coded by race.

Bonneville has become slightly more racially diverse since the 2020 Census. It is 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 Bonneville County, that probability was 33.0% in 2020 and 33.5% in the most recent ACS estimates.

Bonneville County is ranked the 4th most populous county in Idaho, out of 44 counties. Bonneville County was ranked the 4th most populous county in the 2020 Census.

Bonneville County's White Population

103,824 residents of Bonneville County, or 80.2% of the population, identify as White. The share of White residents in Bonneville County is comparable to the share in Idaho overall, where 78.6% of the population is White. Bonneville County ranks 27th statewide in terms of White residents as a share of the population, out of 44 counties.

Since the 2020 Census, Bonneville County's White population has grown by an estimated 3.9%. White residents' share of Bonneville County's population has remained roughly unchanged at 80.2%.

Bonneville County is more White than neighboring Teton County (79.3% White), and Bingham County (73.7% White). Bonneville County is less White than neighboring Madison County (83.5% White), Caribou County (90.5% White), and Jefferson County (85.7% White).

Bonneville County's Black Population

444 residents of Bonneville County, or 0.3% of the population, identify as Black. The share of Black residents in Bonneville County is comparable to the share in Idaho overall, where 0.7% of the population is Black. Bonneville County ranks 8th statewide in terms of Black residents as a share of the population, out of 44 counties.

Since the 2020 Census, Bonneville County's Black population has declined by an estimated 25.1%. Black residents' share of Bonneville County's population has remained roughly unchanged at 0.3%.

Bonneville County is more Black than neighboring Teton County (0% Black), Caribou County (0.2% Black), Bingham County (0.2% Black), and Jefferson County (0% Black). Bonneville County is less Black than neighboring Madison County (1% Black).

Bonneville County's Asian Population

1,109 residents of Bonneville County, or 0.9% of the population, identify as Asian. The share of Asian residents in Bonneville County is comparable to the share in Idaho overall, where 1.3% of the population is Asian. Bonneville County ranks 7th statewide in terms of Asian residents as a share of the population, out of 44 counties.

Since the 2020 Census, Bonneville County's Asian population has declined by an estimated 20.3%. Asian residents' share of Bonneville County's population has remained roughly unchanged at 0.9%.

Bonneville County is more Asian than neighboring Teton County (0.1% Asian), Caribou County (0% Asian), Bingham County (0.3% Asian), and Jefferson County (0.1% Asian). Bonneville County is less Asian than neighboring Madison County (1.5% Asian).

Bonneville County's Hispanic Population

18,769 residents of Bonneville County, or 14.5% of the population, identify as Hispanic. The share of Hispanic residents in Bonneville County is comparable to the share in Idaho overall, where 13.6% of the population is Hispanic. Bonneville County ranks 17th statewide in terms of Hispanic residents as a share of the population, out of 44 counties.

Since the 2020 Census, Bonneville County's Hispanic population has grown by an estimated 9.8%. Hispanic residents' share of Bonneville County's population has increased from 13.8% to 14.5%.

Bonneville County is more Hispanic than neighboring Madison County (9.8% Hispanic), Caribou County (5.7% Hispanic), and Jefferson County (11% Hispanic). Bonneville County is less Hispanic than neighboring Teton County (17.3% Hispanic), and Bingham County (17.8% Hispanic).

Bonneville County's Native American/Other Population

1,124 residents of Bonneville County, or 0.9% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Bonneville County is comparable to the share in Idaho overall, where 1.5% of the population is Native American/Other. Bonneville County ranks 29th statewide in terms of Native American/Other residents as a share of the population, out of 44 counties.

Since the 2020 Census, Bonneville County's Native American/Other population has declined by an estimated 7.6%. Native American/Other residents' share of Bonneville County's population has remained roughly unchanged at 0.9%.

Bonneville County is more Native American/Other than neighboring Teton County (0.7% Native American/Other), Caribou County (0.1% Native American/Other), and Jefferson County (0.6% Native American/Other). Bonneville County is less Native American/Other than neighboring Madison County (1.4% Native American/Other), and Bingham County (4.9% Native American/Other).

Bonneville County's Multiracial Population

4,253 residents of Bonneville County, or 3.3% of the population, identify as Multiracial. The share of Multiracial residents in Bonneville County is comparable to the share in Idaho overall, where 4.2% of the population is Multiracial. Bonneville County ranks 31st statewide in terms of Multiracial residents as a share of the population, out of 44 counties.

Since the 2020 Census, Bonneville County's Multiracial population has grown by an estimated 14.2%. Multiracial residents' share of Bonneville County's population has remained roughly unchanged at 3.3%.

Bonneville County is more Multiracial than neighboring Madison County (2.8% Multiracial), Teton County (2.6% Multiracial), Bingham County (3.2% Multiracial), and Jefferson County (2.6% Multiracial). Bonneville County is less Multiracial than neighboring Caribou 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.