Weldon Spring, Missouri

Weldon Spring, Missouri
Welcome sign to Weldon Spring, Missouri in June 2018
Location of Weldon Spring, Missouri
Coordinates: 38°43′0″N 90°38′57″W / 38.71667°N 90.64917°W / 38.71667; -90.64917
CountryUnited States
StateMissouri
CountySt. Charles
Area
 • Total
7.78 sq mi (20.14 km2)
 • Land7.65 sq mi (19.81 km2)
 • Water0.13 sq mi (0.33 km2)
Elevation
541 ft (165 m)
Population
 (2020)
 • Total
5,326
 • Density696.5/sq mi (268.91/km2)
Time zoneUTC-6 (Central (CST))
 • Summer (DST)UTC-5 (CDT)
FIPS code29-78314
GNIS feature ID0756882

Weldon Spring is a city in St. Charles County, Missouri, United States. The population was 5,326 at the 2020 census.