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ZIP Code Database - Facts & Stats

Data Last Updated: December 1, 2021

ZIP Codes for City of Cortland, IL

Cortland, IL Covers 1 ZIP Code

ZIP CodeTypeCountyPopulationArea Code(s)
ZIP Code 60112StandardDekalb4,560815 / 779

Timezone(s):Central (GMT -06:00)
Counties:DEKALB, IL
Population:4,270 (More Details)
Male Population:2,112
Female Population:2,158
Median Age:30
ZIP Codes:1
Area Codes:2
Total Area:635 square miles (county)
Land Area:631 square miles (county)
Water Area:3 square miles (county)

Cortland, IL Demographic Information *

Total population4,270
Male population2,112
Female population2,158
Median age (years)29.5
White Population3,667
Black Population233
Indian Population21
Asian Population73
Hawaiian Population0
Hispanic Population527
Median age (Male)29.7
Median age (Female)29.4
Total households1,423
Family households (families)1,119
Average household size3
Average family size3.32
Total housing units1,530
* Demographic data is based on 2010 Census.

Cortland, IL Other Information

113 Cities within 30 miles of Cortland, IL Products


  1. U.S. Postal Service [Last Updated: 12/1/2021],
  2. Internal Data Creation [Last Updated: 12/1/2021],
  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],