Boise County Demographics

A map of Boise County's Population by Race

Boise County, Idaho has an estimated population of 8,273, an increase from the 7,610 recorded in the 2020 Census. The population is 83.5% White, 6.5% Multiracial, 5.1% Hispanic, 3.2% Native American/Other, 1.5% Asian, and 0.2% Black. This demographic dot map shows the population of Boise County, with one dot drawn for each person counted by the Census, color-coded by race.

Boise has become considerably more racially diverse since the 2020 Census. It is considerably 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 Boise County, that probability was 20.9% in 2020 and 29.5% in the most recent ACS estimates.

Boise County is ranked the 32nd most populous county in Idaho, out of 44 counties. Boise County was ranked the 34th most populous county in the 2020 Census.

Boise County's White Population

6,907 residents of Boise County, or 83.5% of the population, identify as White. The share of White residents in Boise County is slightly higher than in Idaho overall, where 78.6% of the population is White. Boise County ranks 13th statewide in terms of White residents as a share of the population, out of 44 counties.

Since the 2020 Census, Boise County's White population has grown by an estimated 2.3%. White residents' share of Boise County's population has decreased from 88.7% to 83.5%.

Boise County is more White than neighboring Elmore County (69.5% White), Ada County (80.9% White), and Payette County (75.5% White). Boise County is less White than neighboring Valley County (90.1% White).

Boise County's Black Population

20 residents of Boise County, or 0.2% of the population, identify as Black. The share of Black residents in Boise County is comparable to the share in Idaho overall, where 0.7% of the population is Black. Boise County ranks 15th statewide in terms of Black residents as a share of the population, out of 44 counties.

Since the 2020 Census, Boise County's Black population has grown by an estimated 5.3%. Black residents' share of Boise County's population has remained roughly unchanged at 0.2%.

Boise County is more Black than neighboring Gem County (0% Black), Valley County (0% Black), and Payette County (0.1% Black). Boise County is less Black than neighboring Elmore County (2.8% Black), and Ada County (1.3% Black).

Boise County's Asian Population

125 residents of Boise County, or 1.5% of the population, identify as Asian. The share of Asian residents in Boise County is comparable to the share in Idaho overall, where 1.3% of the population is Asian. Boise County ranks 20th statewide in terms of Asian residents as a share of the population, out of 44 counties.

Since the 2020 Census, Boise County's Asian population has grown by an estimated 247.2%. Asian residents' share of Boise County's population has increased from 0.5% to 1.5%.

Boise County is more Asian than neighboring Gem County (0.8% Asian), Valley County (0.2% Asian), and Payette County (0.7% Asian). Boise County is less Asian than neighboring Elmore County (2.6% Asian), and Ada County (2.7% Asian).

Boise County's Hispanic Population

422 residents of Boise County, or 5.1% of the population, identify as Hispanic. The share of Hispanic residents in Boise County is lower than in Idaho overall, where 13.6% of the population is Hispanic. Boise County ranks 32nd statewide in terms of Hispanic residents as a share of the population, out of 44 counties.

Since the 2020 Census, Boise County's Hispanic population has grown by an estimated 30.2%. Hispanic residents' share of Boise County's population has increased from 4.3% to 5.1%.

Boise County is less Hispanic than neighboring Gem County (9.7% Hispanic), Elmore County (18.2% Hispanic), Ada County (9.8% Hispanic), Valley County (5.4% Hispanic), and Payette County (17.9% Hispanic).

Boise County's Native American/Other Population

265 residents of Boise County, or 3.2% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Boise County is comparable to the share in Idaho overall, where 1.5% of the population is Native American/Other. Boise County ranks 10th statewide in terms of Native American/Other residents as a share of the population, out of 44 counties.

Since the 2020 Census, Boise County's Native American/Other population has grown by an estimated 85.3%. Native American/Other residents' share of Boise County's population has increased from 1.9% to 3.2%.

Boise County is more Native American/Other than neighboring Gem County (1.5% Native American/Other), Elmore County (1.6% Native American/Other), Ada County (1% Native American/Other), Valley County (1.1% Native American/Other), and Payette County (1.6% Native American/Other).

Boise County's Multiracial Population

534 residents of Boise County, or 6.5% of the population, identify as Multiracial. The share of Multiracial residents in Boise County is slightly higher than in Idaho overall, where 4.2% of the population is Multiracial. Boise County ranks 14th statewide in terms of Multiracial residents as a share of the population, out of 44 counties.

Since the 2020 Census, Boise County's Multiracial population has grown by an estimated 58.5%. Multiracial residents' share of Boise County's population has increased from 4.4% to 6.5%.

Boise County is more Multiracial than neighboring Gem County (4.5% Multiracial), Elmore County (5.2% Multiracial), Ada County (4.3% Multiracial), Valley County (3.1% Multiracial), and Payette County (4.2% 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.