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ZIP Code Database - Facts & Stats

Data Last Updated: May 1, 2022

ZIP Codes for City of Ottawa, IL

Ottawa, IL Covers 1 ZIP Code

ZIP CodeTypeCountyPopulationArea Code(s)
ZIP Code 61350StandardLa Salle24,246815

Timezone(s):Central (GMT -06:00)
Counties:LA SALLE, IL
Population:18,768 (More Details)
Male Population:9,161
Female Population:9,607
Median Age:40
ZIP Codes:1
Area Codes:1
Total Area:1,148 square miles (county)
Land Area:1,135 square miles (county)
Water Area:13 square miles (county)

Ottawa, IL Demographic Information *

Total population18,768
Male population9,161
Female population9,607
Median age (years)40.2
White Population17,528
Black Population382
Indian Population58
Asian Population173
Hawaiian Population2
Hispanic Population1,406
Median age (Male)38.3
Median age (Female)41.8
Total households7,783
Family households (families)4,871
Average household size2.35
Average family size2.96
Total housing units8,569
* 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],