City of Chesterfield began in 1988. This wonderful city is home to many parks, outdoor ampitheater, Chesterfield Mall, The Valley, AAA Rockwood School District and is the last city east of the Boone bridge adjoining to St. Charles County. This is a thriving city where families grow and the shops do too. Presently there are two more Premium Outlet Malls under contruction. One is just north of 40 at Boone Crossing and the second is on the south side of hwy 40 near Rombachs Farm and Spirit of St. Louis Airport.