DeKalb County, Illinois Zip Codes

13 zips

Zip Code
City
Population ↓
60115Dekalb42,456
60178Sycamore21,996
60548Sandwich12,040
60135Genoa7,021
60112Cortland4,783
60552Somonauk4,538
60520Hinckley2,927
60145Kingston2,539
60556Waterman2,216
60146Kirkland2,193
60150Malta2,007
60550Shabbona1,177
60111Clare153

Overview of Zip Codes in DeKalb County

13
ZIP Codes

The data shown reflect ZCTAs from the US Census. As of 2024, there are 13 ZCTAs in DeKalb County, Illinois (US Census).