The Wentzville R-IV School District is located in Saint Charles County, one of the fastest growing counties in the nation and the fastest growing area in Missouri . The county boasts a good blend of commercial, industrial and residential growth. The Wentzville School District is geographically located in the western part of the county or 40 miles west of downtown St. Louis.
The District is home to corporate offices and industries such as General Motors (sole producer of GM's full-size van), MasterCard Worldwide, and CenturyLink Telephone Operations. The District serves an 89-square mile area including all or part of Dardenne Prairie, Foristell, Lake Saint Louis, O'Fallon and Wentzville.