City in St. Charles County, Missouri · 7.6 sq mi · 692 people per sq mi
About 5,300 people live in Weldon Spring. The typical household earns $158,548, and the median resident is 52.2 years old.
2026 projection
From 5,335 in 2020
Poverty rate 0.74%
Men 51.6 · Women 52.6
1880–2026
5,290
2026 projection
0.8% 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.
1880–2026
5,290
2026 projection
0.8% 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 | 5,290 | -11 | 0.21% |
|---|---|---|---|
| 2025 | 5,301 | +9 | 0.17% |
| 2024 | 5,292 | +14 | 0.27% |
| 2023 | 5,278 | -2 | 0.04% |
| 2022 | 5,280 | -33 | 0.62% |
| 2021 | 5,313 | -22 | 0.41% |
| 2020 | 5,335 | -192 | 3.47% |
| 2019 | 5,527 | -17 | 0.31% |
| 2018 | 5,544 | +1 | 0.02% |
| 2017 | 5,543 | -1 | 0.02% |
Showing 10 of 20 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 53 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 135 residents
74% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 74% | 77% | 71% |
| Never married | 16% | 18% | 14% |
| Divorced | 3% | 2% | 5% |
| Widowed | 6% | 3% | 10% |
| Separated | <1% | <1% | 0% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
10 sources, all from the U.S. Census Bureau