City in St. Charles County, Missouri · 28.8 sq mi · 12 people per sq mi
About 350 people live in West Alton. The typical household earns $111,500, and the median resident is 36.5 years old.
2026 projection
From 357 in 2020
Poverty rate 1.71%
Men 38.2 · Women 31.5
2010–2026
353
2026 projection
1.1% 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.
2010–2026
353
2026 projection
1.1% 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 | 353 | -1 | 0.28% |
|---|---|---|---|
| 2025 | 354 | +1 | 0.28% |
| 2024 | 353 | +1 | 0.28% |
| 2023 | 352 | -1 | 0.28% |
| 2022 | 353 | -3 | 0.84% |
| 2021 | 356 | -1 | 0.28% |
| 2020 | 357 | -170 | 32.26% |
| 2019 | 527 | -3 | 0.57% |
| 2018 | 530 | 0 | 0.00% |
| 2017 | 530 | -1 | 0.19% |
Showing 10 of 17 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 5 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 58 residents
62% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 62% | 65% | 59% |
| Never married | 25% | 24% | 26% |
| Divorced | 10% | 10% | 11% |
| Widowed | 3% | 1% | 5% |
| Separated | 0% | 0% | 0% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
10 sources, all from the U.S. Census Bureau