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ZIP Code Database - Facts & Stats

Data Last Updated: May 1, 2022

ZIP Codes for City of Sandwich, IL

Sandwich, IL Covers 1 ZIP Code

ZIP CodeTypeCountyPopulationArea Code(s)
ZIP Code 60548StandardDekalb12,218779 / 815

Timezone(s):Central (GMT -06:00)
Counties:DEKALB, IL
Population:7,421 (More Details)
Male Population:3,713
Female Population:3,708
Median Age:37
ZIP Codes:1
Area Codes:2
Total Area:635 square miles (county)
Land Area:631 square miles (county)
Water Area:3 square miles (county)

Sandwich, IL Demographic Information *

Total population7,421
Male population3,713
Female population3,708
Median age (years)37.3
White Population6,745
Black Population35
Indian Population17
Asian Population56
Hawaiian Population0
Hispanic Population935
Median age (Male)35
Median age (Female)39.1
Total households2,704
Family households (families)1,895
Average household size2.69
Average family size3.21
Total housing units2,876
* Demographic data is based on 2010 Census.

Sandwich, IL Other Information

115 Cities within 30 miles of Sandwich, IL 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],