Oneida County Demographics

A map of Oneida County's Population by Race

Oneida County, Idaho has an estimated population of 4,768, an increase from the 4,564 recorded in the 2020 Census. The population is 91.8% White, 4.4% Hispanic, 2.5% Multiracial, 0.8% Native American/Other, 0.4% Black, and 0.0% Asian. This demographic dot map shows the population of Oneida County, with one dot drawn for each person counted by the Census, color-coded by race.

Oneida has become 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 Oneida County, that probability was 12.7% in 2020 and 15.4% in the most recent ACS estimates.

Oneida County is ranked the 38th most populous county in Idaho, out of 44 counties. Oneida County was ranked the 38th most populous county in the 2020 Census.

Oneida County's White Population

4,379 residents of Oneida County, or 91.8% of the population, identify as White. The share of White residents in Oneida County is considerably higher than in Idaho overall, where 78.6% of the population is White. Oneida County ranks 2nd statewide in terms of White residents as a share of the population, out of 44 counties.

Since the 2020 Census, Oneida County's White population has grown by an estimated 2.8%. White residents' share of Oneida County's population has decreased from 93.3% to 91.8%.

Oneida County is more White than neighboring Bannock County (80.3% White), Power County (60.5% White), Franklin County (89.4% White), Box Elder County (85.4% White), and Cache County (81.3% White).

Oneida County's Black Population

19 residents of Oneida County, or 0.4% of the population, identify as Black. The share of Black residents in Oneida County is comparable to the share in Idaho overall, where 0.7% of the population is Black. Oneida County ranks 43rd statewide in terms of Black residents as a share of the population, out of 44 counties.

Since the 2020 Census, Oneida County's Black population has grown by an estimated 850.0%. Black residents' share of Oneida County's population has remained roughly unchanged at 0.4%.

Oneida County is more Black than neighboring Franklin County (0.1% Black), and Box Elder County (0.3% Black). Oneida County is less Black than neighboring Bannock County (0.8% Black), and Cache County (0.8% Black).

Oneida County's Asian Population

0 residents of Oneida County, or 0.0% of the population, identify as Asian. The share of Asian residents in Oneida County is comparable to the share in Idaho overall, where 1.3% of the population is Asian. Oneida County ranks 33rd statewide in terms of Asian residents as a share of the population, out of 44 counties.

Since the 2020 Census, Oneida County's Asian population has declined by an estimated 100.0%. Asian residents' share of Oneida County's population has remained roughly unchanged at 0.0%.

Oneida County is less Asian than neighboring Bannock County (1.5% Asian), Franklin County (0.1% Asian), Box Elder County (0.6% Asian), and Cache County (1.7% Asian).

Oneida County's Hispanic Population

212 residents of Oneida County, or 4.4% of the population, identify as Hispanic. The share of Hispanic residents in Oneida County is lower than in Idaho overall, where 13.6% of the population is Hispanic. Oneida County ranks 34th statewide in terms of Hispanic residents as a share of the population, out of 44 counties.

Since the 2020 Census, Oneida County's Hispanic population has grown by an estimated 19.1%. Hispanic residents' share of Oneida County's population has increased from 3.9% to 4.4%.

Oneida County is less Hispanic than neighboring Bannock County (9.9% Hispanic), Power County (34.3% Hispanic), Franklin County (7.4% Hispanic), Box Elder County (10.2% Hispanic), and Cache County (11.7% Hispanic).

Oneida County's Native American/Other Population

40 residents of Oneida County, or 0.8% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Oneida County is comparable to the share in Idaho overall, where 1.5% of the population is Native American/Other. Oneida County ranks 40th statewide in terms of Native American/Other residents as a share of the population, out of 44 counties.

Since the 2020 Census, Oneida County's Native American/Other population has grown by an estimated 53.8%. Native American/Other residents' share of Oneida County's population has remained roughly unchanged at 0.8%.

Oneida County is more Native American/Other than neighboring Franklin County (0.7% Native American/Other), and Cache County (0.7% Native American/Other). Oneida County is less Native American/Other than neighboring Bannock County (3.4% Native American/Other), Power County (0.9% Native American/Other), and Box Elder County (0.9% Native American/Other).

Oneida County's Multiracial Population

118 residents of Oneida County, or 2.5% of the population, identify as Multiracial. The share of Multiracial residents in Oneida County is comparable to the share in Idaho overall, where 4.2% of the population is Multiracial. Oneida County ranks 44th statewide in terms of Multiracial residents as a share of the population, out of 44 counties.

Since the 2020 Census, Oneida County's Multiracial population has grown by an estimated 38.8%. Multiracial residents' share of Oneida County's population has increased from 1.9% to 2.5%.

Oneida County is more Multiracial than neighboring Franklin County (2.4% Multiracial). Oneida County is less Multiracial than neighboring Bannock County (4.1% Multiracial), Power County (3.9% Multiracial), Box Elder County (2.6% Multiracial), and Cache County (3.8% 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.