51106 is zip code located in Sioux City, Iowa. The population is 26,107, making 51106 the largest zipcode in Sioux City and the largest in Woodbury County.
There are 6 public schools in 51106 with an average Homefacts rating of C+. The total crime rate for Sioux City is moderate , and there are 49 registered sex offenders residing in the zip code 51106. Unemployment in 51106 is moderate.