64503 is zip code located in St. Joseph, Missouri. The population is 12,395, making 64503 the 5th largest zipcode in St. Joseph and the 5th largest in Buchanan County.
There are 3 public schools in 64503 with an average Homefacts rating of B-. The total crime rate for St. Joseph is high , and there are 55 registered sex offenders residing in the zip code 64503. Unemployment in 64503 is low.