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ZIP Code Database - Facts & Stats

Data Last Updated: December 1, 2021

ZIP Codes for City of Griswold, IA

Griswold, IA Covers 1 ZIP Code

ZIP CodeTypeCountyPopulationArea Code(s)
ZIP Code 51535StandardCass1,923712

Timezone(s):Central (GMT -06:00)
Counties:CASS, IA
Population:1,036 (More Details)
Male Population:473
Female Population:563
Median Age:45
ZIP Codes:1
Area Codes:1
Total Area:565 square miles (county)
Land Area:564 square miles (county)
Water Area:1 square miles (county)

Griswold, IA Demographic Information *

Total population1,036
Male population473
Female population563
Median age (years)44.9
White Population1,010
Black Population10
Indian Population3
Asian Population1
Hawaiian Population0
Hispanic Population11
Median age (Male)43.1
Median age (Female)45.6
Total households445
Family households (families)278
Average household size2.25
Average family size2.85
Total housing units507
* Demographic data is based on 2010 Census.

Griswold, IA Other Information

57 Cities within 30 miles of Griswold, IA Products


  1. U.S. Postal Service [Last Updated: 12/1/2021],
  2. Internal Data Creation [Last Updated: 12/1/2021],
  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],