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ZIP Code Database - Facts & Stats

Data Last Updated: May 1, 2022

ZIP Codes for City of Marshalltown, IA

Marshalltown, IA Covers 1 ZIP Code

ZIP CodeTypeCountyPopulationArea Code(s)
ZIP Code 50158StandardMarshall31,591641

Timezone(s):Central (GMT -06:00)
Population:27,552 (More Details)
Male Population:13,730
Female Population:13,822
Median Age:37
ZIP Codes:1
Area Codes:1
Total Area:573 square miles (county)
Land Area:573 square miles (county)
Water Area:1 square miles (county)

Marshalltown, IA Demographic Information *

Total population27,552
Male population13,730
Female population13,822
Median age (years)37.3
White Population23,371
Black Population608
Indian Population160
Asian Population467
Hawaiian Population45
Hispanic Population6,632
Median age (Male)35.5
Median age (Female)38.9
Total households10,335
Family households (families)6,629
Average household size2.55
Average family size3.18
Total housing units11,171
* Demographic data is based on 2010 Census. Products


  1. U.S. Postal Service [Last Updated: 5/1/2022],
  2. Internal Data Creation [Last Updated: 5/1/2022],
  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],