Dardenne Prairie is a city in St. Charles County, Missouri, United States. The population was 11,494 at the 2010 census. Dardenne Prairie is located southwest of O'Fallon on Missouri Route N, just east of U.S. Route 40. According to the United States Census Bureau, the city has a total area of 4.92 square miles (12.74 km2), all land
Dardenne Prairie Properties
Information From Third Parties, Deemed Reliable But Not Verified.