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ZIP Code Database - Facts & Stats

Data Last Updated: May 1, 2022

ZIP Codes for City of Waterloo, IL

Waterloo, IL Covers 1 ZIP Code

ZIP CodeTypeCountyPopulationArea Code(s)
ZIP Code 62298StandardMonroe16,609618

Timezone(s):Central (GMT -06:00)
Counties:MONROE, IL
Population:9,811 (More Details)
Male Population:4,657
Female Population:5,154
Median Age:40
ZIP Codes:1
Area Codes:1
Total Area:398 square miles (county)
Land Area:385 square miles (county)
Water Area:13 square miles (county)

Waterloo, IL Demographic Information *

Total population9,811
Male population4,657
Female population5,154
Median age (years)39.8
White Population9,609
Black Population13
Indian Population35
Asian Population33
Hawaiian Population6
Hispanic Population149
Median age (Male)37.9
Median age (Female)41.8
Total households3,860
Family households (families)2,720
Average household size2.48
Average family size2.96
Total housing units4,046
* Demographic data is based on 2010 Census. Products


  1. U.S. Postal Service [Last Updated: 5/1/2022],
  2. Internal Data Creation [Last Updated: 5/1/2022],
  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],