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ZIP Code Database - Facts & Stats

Data Last Updated: March 1, 2023

ZIP Codes for City of Polk City, IA

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Counties:POLK, IA
Area Code(s):515
Timezone(s):Central (GMT -06:00)
City Population:3,418 (More Details)
CBSA:Des Moines-West Des Moines, IA
Congressional District(s):03, 04
Land Area:574 square miles (county)
Water Area:18 square miles (county)

1 ZIP Code

Polk City, IA ZIP Code Boundaries

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Polk City, IA Covers 1 ZIP Code

ZIP CodeTypePopulation% of PopulationAliases

Polk City, IA Demographic Information *

Total population**3,418
Male population1,709
Female population1,709
Median age (years)34.4
White Population3,322
Black Population29
Indian Population8
Asian Population14
Hawaiian Population0
Hispanic Population32
Median age (Male)34.4
Median age (Female)34.3
Total households1,232
Family households (families)957
Average household size2.73
Average family size3.11
Total housing units1,276
* Demographic data is based on 2010 Census for the City of POLK 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],