63304 is zip code located in St. Charles, Missouri. The population is 39,986, making 63304 the 3rd largest zipcode in St. Charles and the 6th largest in St. Charles County.
There are 0 public schools in 63304 with an average Homefacts rating of A. , and there are 32 registered sex offenders residing in the zip code 63304. Unemployment in 63304 is low.
Zip codes within St. Charles include 63045, 63301 and 63302.