51109 is zip code located in Sioux City, Iowa. The population is 3,066, making 51109 the 6th largest zipcode in Sioux City and the 7th largest in Woodbury County.
There are 1 public schools in 51109 with an average Homefacts rating of C-. The total crime rate for Sioux City is moderate , and there are 14 registered sex offenders residing in the zip code 51109. Unemployment in 51109 is moderate.