51105 is zip code located in Sioux City, Iowa. The population is 9,509, making 51105 the 4th largest zipcode in Sioux City and the 4th largest in Woodbury County.
There are 3 public schools in 51105 with an average Homefacts rating of C-. The total crime rate for Sioux City is moderate , and there are 62 registered sex offenders residing in the zip code 51105. Unemployment in 51105 is moderate.