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ZIP Code Database - Facts & Stats

Data Last Updated: March 1, 2023

ZIP Codes for City of Sioux City, IA

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Area Code(s):712
Timezone(s):Central (GMT -06:00)
City Population:82,684 (More Details)
CBSA:Sioux City, IA-NE-SD
Congressional District(s):04
Land Area:873 square miles (county)
Water Area:5 square miles (county)

9 ZIP Codes

Sioux City, IA ZIP Code Boundaries

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Sioux City, IA Covers 9 ZIP Codes

ZIP CodeTypePopulation% of PopulationAliases
51101Standard8090.94%WICKHAM SPUR
51102P.O. Box00.00%
51109Standard3,0983.61%BLVD STATION

Sioux City, IA Demographic Information *

Total population**82,684
Male population40,643
Female population42,041
Median age (years)33.7
White Population66,641
Black Population2,371
Indian Population2,134
Asian Population2,258
Hawaiian Population102
Hispanic Population13,598
Median age (Male)32.4
Median age (Female)35.1
Total households31,571
Family households (families)20,144
Average household size2.54
Average family size3.14
Total housing units33,425
* Demographic data is based on 2010 Census for the City of SIOUX CITY.
** City and ZIP Code Population will not be equal due to differences in their geographies.


  1. U.S. Postal Service [Last Updated: 2/1/2023],
  2. Internal Data Creation [Last Updated: 2/1/2023],
  3. U.S. Geological Survey [Updated as needed],
  4. U.S. Census [Updated Yearly],
  5. U.S. Census 2010 [Decennial] [Last Updated: 1/1/2010],