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ZIP Code Database - Facts & Stats

Data Last Updated: June 1, 2023

ZIP Codes for City of Forreston, IL

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Counties:OGLE, IL
Area Code(s):815, 779
Timezone(s):Central (GMT -06:00)
City Population:1,446 (More Details)
CBSA:Rochelle, IL
Congressional District(s):16
Land Area:759 square miles (county)
Water Area:4 square miles (county)

1 ZIP Code

Forreston, IL ZIP Code Boundaries

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Forreston, IL Covers 1 ZIP Code

ZIP CodeTypePopulation% of PopulationAliases

Forreston, IL Demographic Information *

Total population**1,446
Male population702
Female population744
Median age (years)39.3
White Population1,407
Black Population4
Indian Population2
Asian Population1
Hawaiian Population0
Hispanic Population28
Median age (Male)38.7
Median age (Female)39.9
Total households578
Family households (families)396
Average household size2.5
Average family size2.97
Total housing units633
* Demographic data is based on 2010 Census for the City of FORRESTON.
** 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],