<P> St. Charles is a city in , and the county seat of , St. Charles County , Missouri , United States . The population was 65,794 at the 2010 census , making St. Charles the ninth - largest city in Missouri . It lies to the northwest , and is a suburb of St. Louis , Missouri on the Missouri River . </P>
<P> St. Charles is a city in , and the county seat of , St. Charles County , Missouri , United States . The population was 65,794 at the 2010 census , making St. Charles the ninth - largest city in Missouri . It lies to the northwest , and is a suburb of St. Louis , Missouri on the Missouri River . </P>
what is the population of st charles mo
what is the population of st charles mo
65,794
65,794