Arion, IA Demographics

A map of Arion's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	131	87	95.6%	89.7%
Hispanic	4	6	2.9%	6.2%
Multiracial	2	2	1.5%	2.1%
Black	0	0	0.0%	0.0%
Asian	0	0	0.0%	0.0%
Native American/Other	0	2	0.0%	2.1%

Arion, Iowa has an estimated population of 137, a dramatic increase from the 97 recorded in the 2020 Census. The population is 95.6% White, 2.9% Hispanic, 1.5% Multiracial, 0.0% Black, 0.0% Asian, and 0.0% Native American/Other. This demographic dot map shows the population of Arion, with one dot drawn for each person counted by the Census, color-coded by race.

Arion has become considerably less racially diverse since the 2020 Census. It is considerably less diverse than Iowa overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Arion, that probability was 19.1% in 2020 and 8.5% in the most recent ACS estimates.

Arion is ranked the 791st most populous place in Iowa, out of 1,026 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). Arion was ranked the 865th most populous place in the 2020 Census.

Arion's White Population

131 residents of Arion, or 95.6% of the population, identify as White. The share of White residents in Arion is considerably higher than in Iowa overall, where 82.3% of the population is White. Arion ranks 763rd statewide in terms of White residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Arion's White population has grown by an estimated 50.6%. White residents' share of Arion's population has increased from 89.7% to 95.6%.

Arion is more White than neighboring Dow City (82.2% White), Buck Grove (95.2% White), Denison (42.9% White), and Defiance (88% White). Arion is less White than neighboring Dunlap (95.9% White).

Arion's Black Population

0 residents of Arion, or 0.0% of the population, identify as Black. The share of Black residents in Arion is slightly lower than in Iowa overall, where 3.8% of the population is Black. Arion ranks 600th statewide in terms of Black residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Arion's Black population has grown from 0 to an estimated 0. Black residents' share of Arion's population has remained roughly unchanged at 0.0%.

Arion is less Black than neighboring Denison (1.5% Black), and Dunlap (1.3% Black).

Arion's Asian Population

0 residents of Arion, or 0.0% of the population, identify as Asian. The share of Asian residents in Arion is slightly lower than in Iowa overall, where 2.5% of the population is Asian. Arion ranks 543rd statewide in terms of Asian residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Arion's Asian population has grown from 0 to an estimated 0. Asian residents' share of Arion's population has remained roughly unchanged at 0.0%.

Arion is less Asian than neighboring Denison (3.3% Asian).

Arion's Hispanic Population

4 residents of Arion, or 2.9% of the population, identify as Hispanic. The share of Hispanic residents in Arion is slightly lower than in Iowa overall, where 7.3% of the population is Hispanic. Arion ranks 175th statewide in terms of Hispanic residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Arion's Hispanic population has declined by an estimated 33.3%. Hispanic residents' share of Arion's population has decreased from 6.2% to 2.9%.

Arion is more Hispanic than neighboring Buck Grove (0% Hispanic), and Dunlap (1.6% Hispanic). Arion is less Hispanic than neighboring Dow City (15% Hispanic), Denison (48.8% Hispanic), and Defiance (10.8% Hispanic).

Arion's Native American/Other Population

0 residents of Arion, or 0.0% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Arion is comparable to the share in Iowa overall, where 0.6% of the population is Native American/Other. Arion ranks 57th statewide in terms of Native American/Other residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Arion's Native American/Other population has declined by an estimated 100.0%. Native American/Other residents' share of Arion's population has decreased from 2.1% to 0.0%.

Arion is less Native American/Other than neighboring Buck Grove (4.8% Native American/Other), and Denison (0.1% Native American/Other).

Arion's Multiracial Population

2 residents of Arion, or 1.5% of the population, identify as Multiracial. The share of Multiracial residents in Arion is comparable to the share in Iowa overall, where 3.5% of the population is Multiracial. Arion ranks 691st statewide in terms of Multiracial residents as a share of the population, out of 1,026 places.

Since the 2020 Census, Arion's Multiracial population has remained roughly the same. Multiracial residents' share of Arion's population has decreased from 2.1% to 1.5%.

Arion is more Multiracial than neighboring Buck Grove (0% Multiracial), Dunlap (1.2% Multiracial), and Defiance (1.2% Multiracial). Arion is less Multiracial than neighboring Dow City (2.9% Multiracial), and Denison (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.