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ZIP Code Database - Facts & Stats

Data Last Updated: May 1, 2022

ZIP Codes for City of Seneca, IL

Seneca, IL Covers 1 ZIP Code

ZIP CodeTypeCountyPopulationArea Code(s)
ZIP Code 61360StandardLa Salle3,393815

Timezone(s):Central (GMT -06:00)
Counties:LA SALLE, IL
Population:2,371 (More Details)
Male Population:1,178
Female Population:1,193
Median Age:37
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)

Seneca, IL Demographic Information *

Total population2,371
Male population1,178
Female population1,193
Median age (years)37.3
White Population2,264
Black Population13
Indian Population7
Asian Population9
Hawaiian Population0
Hispanic Population96
Median age (Male)35.2
Median age (Female)39.1
Total households868
Family households (families)625
Average household size2.73
Average family size3.21
Total housing units927
* 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],