51537 is zip code located in Harlan, Iowa. The population is 6,746, making 51537 the largest zipcode in Harlan and the largest in Shelby County.
There are 4 public schools in 51537 with an average Homefacts rating of A-. The total crime rate for Harlan is low , and there are 8 registered sex offenders residing in the zip code 51537. Unemployment in 51537 is low.
Zip codes within Harlan include 51593.