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ZIP Code Database - Facts & Stats

Data Last Updated: March 1, 2023

ZIP Codes for City of Iowa City, IA

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Counties:JOHNSON, IA
Area Code(s):319
Timezone(s):Central (GMT -06:00)
City Population:67,862 (More Details)
CBSA:Iowa City, IA
Congressional District(s):01, 02
Land Area:614 square miles (county)
Water Area:9 square miles (county)

7 ZIP Codes

Iowa City, IA ZIP Code Boundaries

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Iowa City, IA Covers 7 ZIP Codes

ZIP CodeTypePopulation% of PopulationAliases
52241Standard18,91119.61%IOWA CITY, OAKDALE
52244P.O. Box00.00%
52246Standard21,11421.90%UNIVERSITY HEIGHTS

Iowa City, IA Demographic Information *

Total population**67,862
Male population33,755
Female population34,107
Median age (years)25.6
White Population56,004
Black Population3,912
Indian Population144
Asian Population4,680
Hawaiian Population28
Hispanic Population3,627
Median age (Male)25.4
Median age (Female)26
Total households27,657
Family households (families)11,743
Average household size2.22
Average family size2.88
Total housing units29,270
* Demographic data is based on 2010 Census for the City of IOWA 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],