40456 is zip code located in Mount Vernon, Kentucky. The population is 9,804, making 40456 the largest zipcode in Mount Vernon and the largest in Rockcastle County.
There are 6 public schools in 40456 with an average Homefacts rating of B-. The total crime rate for Mount Vernon is very low , and there are 24 registered sex offenders residing in the zip code 40456. Unemployment in 40456 is very high.