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ZIP Code Database - Facts & Stats

Data Last Updated: March 1, 2023

ZIP Codes for City of Sumner, IA

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Counties:BREMER, IA
Area Code(s):563
Timezone(s):Central (GMT -06:00)
City Population:2,028 (More Details)
CBSA:Waterloo-Cedar Falls, IA
Congressional District(s):02
Land Area:435 square miles (county)
Water Area:4 square miles (county)

1 ZIP Code

Sumner, IA ZIP Code Boundaries

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Sumner, IA Covers 1 ZIP Code

ZIP CodeTypePopulation% of PopulationAliases

Sumner, IA Demographic Information *

Total population**2,028
Male population929
Female population1,099
Median age (years)45.3
White Population1,997
Black Population0
Indian Population1
Asian Population16
Hawaiian Population0
Hispanic Population15
Median age (Male)42.6
Median age (Female)48.6
Total households869
Family households (families)555
Average household size2.24
Average family size2.83
Total housing units944
* Demographic data is based on 2010 Census for the City of SUMNER.
** 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],