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ZIP Code Database - Facts & Stats

Data Last Updated: March 1, 2023

ZIP Codes for City of Fairfax, IA

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Counties:LINN, IA
Area Code(s):319
Timezone(s):Central (GMT -06:00)
City Population:2,123 (More Details)
CBSA:Cedar Rapids, IA
Congressional District(s):01, 02
Land Area:717 square miles (county)
Water Area:8 square miles (county)

1 ZIP Code

Fairfax, IA ZIP Code Boundaries

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Fairfax, IA Covers 1 ZIP Code

ZIP CodeTypePopulation% of PopulationAliases

Fairfax, IA Demographic Information *

Total population**2,123
Male population1,045
Female population1,078
Median age (years)36.6
White Population2,041
Black Population26
Indian Population4
Asian Population24
Hawaiian Population0
Hispanic Population29
Median age (Male)36.2
Median age (Female)37.4
Total households782
Family households (families)608
Average household size2.71
Average family size3.07
Total housing units803
* Demographic data is based on 2010 Census for the City of FAIRFAX.
** 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],