Knox County, Illinois Zip Codes

Zip Code
City
Population
61401Galesburg30,809
61448Knoxville4,076
61410Abingdon3,730
61402Galesburg1,748
61488Wataga1,284
61467Oneida1,244
61428Dahinda1,162
61572Yates City1,029
61489Williamsfield841
61414Altona794
61436Gilson787
61430East Galesburg618
61458Maquon464
61472Rio387
61485Victoria387
61474Saint Augustine285
61439Henderson250

Overview of Zip Codes in Knox County

17
ZIP Codes

The data shown reflect ZCTAs from the US Census. As of 2024, there are 17 ZCTAs in Knox County, Illinois (US Census).