51247 is zip code located in Rock Valley, Iowa. The population is 4,721, making 51247 the largest zipcode in Rock Valley and the 4th largest in Sioux County.
There are 2 public schools in 51247 with an average Homefacts rating of B-. , and there are 4 registered sex offenders residing in the zip code 51247. Unemployment in 51247 is low.