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ZIP Code Database - Facts & Stats

Data Last Updated: June 1, 2023

ZIP Codes for City of Grundy Center, IA

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Counties:GRUNDY, IA
Area Code(s):319
Timezone(s):Central (GMT -06:00)
City Population:2,706 (More Details)
CBSA:Waterloo-Cedar Falls, IA
Congressional District(s):02
Land Area:502 square miles (county)
Water Area:0 square miles (county)

1 ZIP Code

Grundy Center, IA ZIP Code Boundaries

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Grundy Center, IA Covers 1 ZIP Code

ZIP CodeTypePopulation% of PopulationAliases

Grundy Center, IA Demographic Information *

Total population**2,706
Male population1,254
Female population1,452
Median age (years)42.9
White Population2,668
Black Population5
Indian Population0
Asian Population4
Hawaiian Population3
Hispanic Population12
Median age (Male)38.6
Median age (Female)47.1
Total households1,162
Family households (families)739
Average household size2.26
Average family size2.86
Total housing units1,256
* Demographic data is based on 2010 Census for the City of GRUNDY CENTER.
** 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],