Weldon Spring is located in St. Charles County, MO. The population is 5,473, making Weldon Spring the 7th largest city in St. Charles County.
There are 4 public schools in Weldon Spring with an average Homefacts rating of NA. The total crime rate for Weldon Spring is very low , and there are 1 registered sex offenders residing in the city. Unemployment in Weldon Spring is low and the median home sales price is $0. Detailed and up-to-date Weldon Spring property reports are available for any property address.