Arimo, ID Demographics

A map of Arimo's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	325	310	92.6%	87.6%
Multiracial	14	23	4.0%	6.5%
Hispanic	5	11	1.4%	3.1%
Native American/Other	5	3	1.4%	0.8%
Asian	2	5	0.6%	1.4%
Black	0	2	0.0%	0.6%

Arimo, Idaho has an estimated population of 351, a less than 1% change from the 354 recorded in the 2020 Census. The population is 92.6% White, 4.0% Multiracial, 1.4% Hispanic, 1.4% Native American/Other, 0.6% Asian, and 0.0% Black. This demographic dot map shows the population of Arimo, with one dot drawn for each person counted by the Census, color-coded by race.

Arimo has become considerably less 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 Arimo, that probability was 22.8% in 2020 and 14.1% in the most recent ACS estimates.

Arimo is ranked the 164th most populous place in Idaho, out of 236 places. This ranking is based on the Census definition of a place, which includes incorporated places like cities, towns, and villages, as well as unincorporated census-designated places (CDPs). Arimo was ranked the 159th most populous place in the 2020 Census.

Arimo's White Population

325 residents of Arimo, or 92.6% of the population, identify as White. The share of White residents in Arimo is considerably higher than in Idaho overall, where 78.6% of the population is White. Arimo ranks 94th statewide in terms of White residents as a share of the population, out of 236 places.

Since the 2020 Census, Arimo's White population has grown by an estimated 4.8%. White residents' share of Arimo's population has increased from 87.6% to 92.6%.

Arimo is more White than neighboring McCammon (88% White), Downey (89.2% White), Inkom (90.6% White), and Bancroft (88.8% White). Arimo is less White than neighboring Lava Hot Springs (93.1% White).

Arimo's Black Population

0 residents of Arimo, or 0.0% of the population, identify as Black. The share of Black residents in Arimo is comparable to the share in Idaho overall, where 0.7% of the population is Black. Arimo ranks 30th statewide in terms of Black residents as a share of the population, out of 236 places.

Since the 2020 Census, Arimo's Black population has declined by an estimated 100.0%. Black residents' share of Arimo's population has decreased from 0.6% to 0.0%.

Arimo's Asian Population

2 residents of Arimo, or 0.6% of the population, identify as Asian. The share of Asian residents in Arimo is comparable to the share in Idaho overall, where 1.3% of the population is Asian. Arimo ranks 18th statewide in terms of Asian residents as a share of the population, out of 236 places.

Since the 2020 Census, Arimo's Asian population has declined by an estimated 60.0%. Asian residents' share of Arimo's population has decreased from 1.4% to 0.6%.

Arimo is more Asian than neighboring McCammon (0% Asian), Downey (0.2% Asian), Lava Hot Springs (0% Asian), Inkom (0% Asian), and Bancroft (0% Asian).

Arimo's Hispanic Population

5 residents of Arimo, or 1.4% of the population, identify as Hispanic. The share of Hispanic residents in Arimo is considerably lower than in Idaho overall, where 13.6% of the population is Hispanic. Arimo ranks 188th statewide in terms of Hispanic residents as a share of the population, out of 236 places.

Since the 2020 Census, Arimo's Hispanic population has declined by an estimated 54.5%. Hispanic residents' share of Arimo's population has decreased from 3.1% to 1.4%.

Arimo is less Hispanic than neighboring McCammon (5.4% Hispanic), Downey (1.6% Hispanic), Lava Hot Springs (2.8% Hispanic), Inkom (1.8% Hispanic), and Bancroft (3.6% Hispanic).

Arimo's Native American/Other Population

5 residents of Arimo, or 1.4% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Arimo is comparable to the share in Idaho overall, where 1.5% of the population is Native American/Other. Arimo ranks 148th statewide in terms of Native American/Other residents as a share of the population, out of 236 places.

Since the 2020 Census, Arimo's Native American/Other population has grown by an estimated 66.7%. Native American/Other residents' share of Arimo's population has increased from 0.8% to 1.4%.

Arimo is more Native American/Other than neighboring Lava Hot Springs (0% Native American/Other), Inkom (0% Native American/Other), and Bancroft (0% Native American/Other). Arimo is less Native American/Other than neighboring McCammon (3.5% Native American/Other), and Downey (5.2% Native American/Other).

Arimo's Multiracial Population

14 residents of Arimo, or 4.0% of the population, identify as Multiracial. The share of Multiracial residents in Arimo is comparable to the share in Idaho overall, where 4.2% of the population is Multiracial. Arimo ranks 25th statewide in terms of Multiracial residents as a share of the population, out of 236 places.

Since the 2020 Census, Arimo's Multiracial population has declined by an estimated 39.1%. Multiracial residents' share of Arimo's population has decreased from 6.5% to 4.0%.

Arimo is more Multiracial than neighboring McCammon (3.1% Multiracial), and Downey (3.7% Multiracial). Arimo is less Multiracial than neighboring Lava Hot Springs (4.1% Multiracial), Inkom (7.6% Multiracial), and Bancroft (7.6% 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.