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ZIP Code Database - Facts & Stats

Data Last Updated: June 1, 2023

ZIP Codes for City of Plainfield, IL

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Counties:WILL, IL
Area Code(s):779, 815
Timezone(s):Central (GMT -06:00)
City Population:39,581 (More Details)
CBSA:Chicago-Naperville-Elgin, IL-IN-WI
Congressional District(s):11, 14
Land Area:837 square miles (county)
Water Area:12 square miles (county)

3 ZIP Codes

Plainfield, IL ZIP Code Boundaries

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Plainfield, IL Covers 3 ZIP Codes

ZIP CodeTypePopulation% of PopulationAliases

Plainfield, IL Demographic Information *

Total population**39,581
Male population19,633
Female population19,948
Median age (years)33.8
White Population32,347
Black Population2,202
Indian Population89
Asian Population3,016
Hawaiian Population16
Hispanic Population4,247
Median age (Male)33.1
Median age (Female)34.4
Total households11,920
Family households (families)10,155
Average household size3.31
Average family size3.62
Total housing units12,532
* Demographic data is based on 2010 Census for the City of PLAINFIELD.
** 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],