City in Warren County, Iowa · 0.1 sq mi · 885 people per sq mi
About 130 people live in St. Marys. The typical household earns $77,500, and the median resident is 55.5 years old.
2026 projection
From 118 in 2020
Poverty rate 8.33%
Men 53.7 · Women 57.5
2010–2026
125
2026 projection
5.9% since 2020 (increase)
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.
2010–2026
125
2026 projection
5.9% since 2020 (increase)
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 | 125 | +1 | 0.81% |
|---|---|---|---|
| 2025 | 124 | +2 | 1.64% |
| 2024 | 122 | +4 | 3.39% |
| 2023 | 118 | 0 | 0.00% |
| 2022 | 118 | 0 | 0.00% |
| 2021 | 118 | 0 | 0.00% |
| 2020 | 118 | -9 | 7.09% |
| 2019 | 127 | +2 | 1.60% |
| 2018 | 125 | +1 | 0.81% |
| 2017 | 124 | -1 | 0.80% |
Showing 10 of 17 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 0.96 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
Half of households earn more, half earn less
Typical yearly pay for a worker 25 or older.
About 1 in 12 residents
68% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 68% | 69% | 67% |
| Never married | 15% | 24% | 5% |
| Divorced | 13% | 8% | 19% |
| Widowed | 4% | 0% | 10% |
| Separated | 0% | 0% | 0% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
10 sources, all from the U.S. Census Bureau