42066 is zip code located in Mayfield, Kentucky. The population is 23,792, making 42066 the largest zipcode in Mayfield and the largest in Graves County.
There are 10 public schools in 42066 with an average Homefacts rating of B. The total crime rate for Mayfield is very high , and there are 60 registered sex offenders residing in the zip code 42066. Unemployment in 42066 is moderate.