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ZIP Code Database - Facts & Stats

Data Last Updated: July 1, 2022

ZIP Codes for City of Onarga, IL

Onarga, IL Covers 1 ZIP Code

ZIP CodeTypeCountyPopulationArea Code(s)
ZIP Code 60955StandardIroquois1,901779 / 815

Timezone(s):Central (GMT -06:00)
Population:1,368 (More Details)
Male Population:713
Female Population:655
Median Age:33
ZIP Codes:1
Area Codes:2
Total Area:1,119 square miles (county)
Land Area:1,117 square miles (county)
Water Area:2 square miles (county)

Onarga, IL Demographic Information *

Total population1,368
Male population713
Female population655
Median age (years)33.4
White Population999
Black Population21
Indian Population7
Asian Population2
Hawaiian Population0
Hispanic Population543
Median age (Male)28.9
Median age (Female)37
Total households447
Family households (families)326
Average household size2.88
Average family size3.42
Total housing units499
* Demographic data is based on 2010 Census. Products


  1. U.S. Postal Service [Last Updated: 7/1/2022],
  2. Internal Data Creation [Last Updated: 7/1/2022],
  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],