Bannock County Demographics

A map of Bannock County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	71,852	70,447	80.3%	81.0%
Hispanic	8,869	7,993	9.9%	9.2%
Multiracial	3,629	3,522	4.1%	4.0%
Native American/Other	3,020	3,220	3.4%	3.7%
Asian	1,350	1,148	1.5%	1.3%
Black	734	688	0.8%	0.8%

Bannock County, Idaho has an estimated population of 89,454, a slight increase from the 87,018 recorded in the 2020 Census. The population is 80.3% White, 9.9% Hispanic, 4.1% Multiracial, 3.4% Native American/Other, 1.5% Asian, and 0.8% Black. This demographic dot map shows the population of Bannock County, with one dot drawn for each person counted by the Census, color-coded by race.

Bannock 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 Bannock County, that probability was 33.3% in 2020 and 34.2% in the most recent ACS estimates.

Bannock County is ranked the 6th most populous county in Idaho, out of 44 counties. Bannock County was ranked the 6th most populous county in the 2020 Census.

Bannock County's White Population

71,852 residents of Bannock County, or 80.3% of the population, identify as White. The share of White residents in Bannock County is comparable to the share in Idaho overall, where 78.6% of the population is White. Bannock County ranks 26th statewide in terms of White residents as a share of the population, out of 44 counties.

Since the 2020 Census, Bannock County's White population has grown by an estimated 2.0%. White residents' share of Bannock County's population has decreased from 81.0% to 80.3%.

Bannock County is more White than neighboring Bingham County (73.7% White), and Power County (60.5% White). Bannock County is less White than neighboring Oneida County (91.8% White), Franklin County (89.4% White), and Caribou County (90.5% White).

Bannock County's Black Population

734 residents of Bannock County, or 0.8% of the population, identify as Black. The share of Black residents in Bannock County is comparable to the share in Idaho overall, where 0.7% of the population is Black. Bannock County ranks 6th statewide in terms of Black residents as a share of the population, out of 44 counties.

Since the 2020 Census, Bannock County's Black population has grown by an estimated 6.7%. Black residents' share of Bannock County's population has remained roughly unchanged at 0.8%.

Bannock County is more Black than neighboring Oneida County (0.4% Black), Bingham County (0.2% Black), Power County (0.4% Black), Franklin County (0.1% Black), and Caribou County (0.2% Black).

Bannock County's Asian Population

1,350 residents of Bannock County, or 1.5% of the population, identify as Asian. The share of Asian residents in Bannock County is comparable to the share in Idaho overall, where 1.3% of the population is Asian. Bannock County ranks 6th statewide in terms of Asian residents as a share of the population, out of 44 counties.

Since the 2020 Census, Bannock County's Asian population has grown by an estimated 17.6%. Asian residents' share of Bannock County's population has remained roughly unchanged at 1.5%.

Bannock County is more Asian than neighboring Oneida County (0% Asian), Bingham County (0.3% Asian), Power County (0% Asian), Franklin County (0.1% Asian), and Caribou County (0% Asian).

Bannock County's Hispanic Population

8,869 residents of Bannock County, or 9.9% of the population, identify as Hispanic. The share of Hispanic residents in Bannock County is slightly lower than in Idaho overall, where 13.6% of the population is Hispanic. Bannock County ranks 21st statewide in terms of Hispanic residents as a share of the population, out of 44 counties.

Since the 2020 Census, Bannock County's Hispanic population has grown by an estimated 11.0%. Hispanic residents' share of Bannock County's population has increased from 9.2% to 9.9%.

Bannock County is more Hispanic than neighboring Oneida County (4.4% Hispanic), Franklin County (7.4% Hispanic), and Caribou County (5.7% Hispanic). Bannock County is less Hispanic than neighboring Bingham County (17.8% Hispanic), and Power County (34.3% Hispanic).

Bannock County's Native American/Other Population

3,020 residents of Bannock County, or 3.4% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Bannock County is comparable to the share in Idaho overall, where 1.5% of the population is Native American/Other. Bannock County ranks 6th statewide in terms of Native American/Other residents as a share of the population, out of 44 counties.

Since the 2020 Census, Bannock County's Native American/Other population has declined by an estimated 6.2%. Native American/Other residents' share of Bannock County's population has remained roughly unchanged at 3.4%.

Bannock County is more Native American/Other than neighboring Oneida County (0.8% Native American/Other), Power County (0.9% Native American/Other), Franklin County (0.7% Native American/Other), and Caribou County (0.1% Native American/Other). Bannock County is less Native American/Other than neighboring Bingham County (4.9% Native American/Other).

Bannock County's Multiracial Population

3,629 residents of Bannock County, or 4.1% of the population, identify as Multiracial. The share of Multiracial residents in Bannock County is comparable to the share in Idaho overall, where 4.2% of the population is Multiracial. Bannock County ranks 18th statewide in terms of Multiracial residents as a share of the population, out of 44 counties.

Since the 2020 Census, Bannock County's Multiracial population has grown by an estimated 3.0%. Multiracial residents' share of Bannock County's population has remained roughly unchanged at 4.1%.

Bannock County is more Multiracial than neighboring Oneida County (2.5% Multiracial), Bingham County (3.2% Multiracial), Power County (3.9% Multiracial), Franklin County (2.4% Multiracial), and 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.