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ZIP Code Database - Facts & Stats

Data Last Updated: May 1, 2023

ZIP Codes for City of Monroe Center, IL

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Counties:OGLE, IL
Area Code(s):779, 815
Timezone(s):Central (GMT -06:00)
City Population:471 (More Details)
CBSA:Rochelle, IL
Congressional District(s):16
Land Area:759 square miles (county)
Water Area:4 square miles (county)

1 ZIP Code

Monroe Center, IL ZIP Code Boundaries

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Monroe Center, IL Covers 1 ZIP Code

ZIP CodeTypePopulation% of PopulationAliases

Monroe Center, IL Demographic Information *

Total population**471
Male population247
Female population224
Median age (years)36.6
White Population462
Black Population1
Indian Population1
Asian Population0
Hawaiian Population0
Hispanic Population7
Median age (Male)34.3
Median age (Female)38.7
Total households175
Family households (families)137
Average household size2.69
Average family size3.04
Total housing units185
* Demographic data is based on 2010 Census for the City of MONROE 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],