42728 is zip code located in Columbia, Kentucky. The population is 15,777, making 42728 the largest zipcode in Columbia and the largest in Adair County.
There are 5 public schools in 42728 with an average Homefacts rating of B-. The total crime rate for Columbia is very low , and there are 43 registered sex offenders residing in the zip code 42728. Unemployment in 42728 is moderate.