51023 is zip code located in Hawarden, Iowa. The population is 3,167, making 51023 the largest zipcode in Hawarden and the 5th largest in Sioux County.
There are 3 public schools in 51023 with an average Homefacts rating of B-. The total crime rate for Hawarden is low , and there are 6 registered sex offenders residing in the zip code 51023. Unemployment in 51023 is low.