51527 is zip code located in Defiance, Iowa. The population is 498, making 51527 the largest zipcode in Defiance and the 6th largest in Shelby County.
There are 0 public schools in 51527 with an average Homefacts rating of NA. , and there are 0 registered sex offenders residing in the zip code 51527. Unemployment in 51527 is low.