CDP in Yellowstone County, Montana · 0.2 sq mi · 159 people per sq mi
About 31 people live in Pompeys Pillar. The median resident is 51.9 years old.
2026 projection
From 86 in 2020
Poverty rate 0%
Men 0 · Women 0
2020–2026
31
2026 projection
64% since 2020 (decrease)
Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
2020–2026
31
2026 projection
64% since 2020 (decrease)
Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
| 2026 | 31 | +2 | 6.90% |
|---|---|---|---|
| 2025 | 29 | +4 | 7.70% |
| 2023 | 25 | +2 | 8.70% |
| 2022 | 23 | -1 | 4.17% |
| 2021 | 24 | -62 | 72.09% |
| 2020 | 86 | — | — |
Showing 6 of 6 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 0.27 people).
Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002
0% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 0% | 0% | 0% |
| Never married | 30% | 0% | 38% |
| Divorced | 70% | 100% | 62% |
| Widowed | 0% | 0% | 0% |
| Separated | 0% | 0% | 0% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
7 sources, all from the U.S. Census Bureau