Pompeys Pillar, MT Demographics

A map of Pompeys Pillar's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	27	47	100.0%	92.2%
Black	0	0	0.0%	0.0%
Asian	0	0	0.0%	0.0%
Hispanic	0	2	0.0%	3.9%
Native American/Other	0	2	0.0%	3.9%
Multiracial	0	0	0.0%	0.0%

Pompeys Pillar, Montana has an estimated population of 27, a dramatic decrease from the 51 recorded in the 2020 Census. The population is 100.0% White, 0.0% Black, 0.0% Asian, 0.0% Hispanic, 0.0% Native American/Other, and 0.0% Multiracial. This demographic dot map shows the population of Pompeys Pillar, with one dot drawn for each person counted by the Census, color-coded by race.

Pompeys Pillar has become considerably less racially diverse since the 2020 Census. It is considerably less diverse than Montana overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Pompeys Pillar, that probability was 14.8% in 2020 and 0.0% in the most recent ACS estimates.

Pompeys Pillar is ranked the 425th most populous place in Montana, out of 497 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). Pompeys Pillar was ranked the 391st most populous place in the 2020 Census.

Pompeys Pillar's White Population

27 residents of Pompeys Pillar, or 100.0% of the population, identify as White. The share of White residents in Pompeys Pillar is significantly higher than in Montana overall, where 83.6% of the population is White. Pompeys Pillar ranks 127th statewide in terms of White residents as a share of the population, out of 497 places.

Since the 2020 Census, Pompeys Pillar's White population has declined by an estimated 42.6%. White residents' share of Pompeys Pillar's population has increased from 92.2% to 100.0%.

Pompeys Pillar is more White than neighboring Nibbe (45.2% White), Ballantine (92% White), Worden (97.6% White), and Shepherd (98% White).

Pompeys Pillar's Black Population

0 residents of Pompeys Pillar, or 0.0% of the population, identify as Black. The share of Black residents in Pompeys Pillar is comparable to the share in Montana overall, where 0.4% of the population is Black. Pompeys Pillar ranks 179th statewide in terms of Black residents as a share of the population, out of 497 places.

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

Pompeys Pillar's Asian Population

0 residents of Pompeys Pillar, or 0.0% of the population, identify as Asian. The share of Asian residents in Pompeys Pillar is comparable to the share in Montana overall, where 0.8% of the population is Asian. Pompeys Pillar ranks 215th statewide in terms of Asian residents as a share of the population, out of 497 places.

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

Pompeys Pillar's Hispanic Population

0 residents of Pompeys Pillar, or 0.0% of the population, identify as Hispanic. The share of Hispanic residents in Pompeys Pillar is slightly lower than in Montana overall, where 4.6% of the population is Hispanic. Pompeys Pillar ranks 142nd statewide in terms of Hispanic residents as a share of the population, out of 497 places.

Since the 2020 Census, Pompeys Pillar's Hispanic population has declined by an estimated 100.0%. Hispanic residents' share of Pompeys Pillar's population has decreased from 3.9% to 0.0%.

Pompeys Pillar is less Hispanic than neighboring Ballantine (6.1% Hispanic), and Worden (2.4% Hispanic).

Pompeys Pillar's Native American/Other Population

0 residents of Pompeys Pillar, 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 Pompeys Pillar is lower than in Montana overall, where 5.9% of the population is Native American/Other. Pompeys Pillar ranks 126th statewide in terms of Native American/Other residents as a share of the population, out of 497 places.

Since the 2020 Census, Pompeys Pillar's Native American/Other population has declined by an estimated 100.0%. Native American/Other residents' share of Pompeys Pillar's population has decreased from 3.9% to 0.0%.

Pompeys Pillar is less Native American/Other than neighboring Ballantine (1.9% Native American/Other).

Pompeys Pillar's Multiracial Population

0 residents of Pompeys Pillar, or 0.0% of the population, identify as Multiracial. The share of Multiracial residents in Pompeys Pillar is slightly lower than in Montana overall, where 4.7% of the population is Multiracial. Pompeys Pillar ranks 423rd statewide in terms of Multiracial residents as a share of the population, out of 497 places.

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

Pompeys Pillar is less Multiracial than neighboring Nibbe (54.8% Multiracial), and Shepherd (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.