Created March 4, 1837 Welcome to Stephenson County, Illinois! Welcome to Stephenson County, Illinois!
Departments and Services
Animal Control 815 235-8276
Circuit Clerk and Court 815-235-8266
Coroner 815 369-4512
County Administrator 815 235-8277
County Board 815 235-8277
County Clerk and Recorder 815 235-8289
Emergency Management 815 599-0344
Health Department 815 235-8271
Highway Department 815 235-7497
Probation Office 815 235-8285
Public Defender 815 235-8365
Sheriff's Office 815 235-8252
State's Attorney 815 235-8279
Stephenson Nursing Center 815 235-6173
Chief County Assessment Officer 815 235-8260
Treasurer-Collector 815 235-8264
Zoning 815 599-0344

Area ZIP Codes

Apple River 61001
Baileyville 61007
Cedarville 61013
Dakota 61018
Davis 61019
Dixon 61021
Durand 61024
Eleroy 61027
Elizabeth 61028
Forreston 61030
Freeport 61032
Galena 61036
German Valley 61039
Hanover 61041
Kent 61044
Lanark 61046
Leaf River 61047
Lena 61048
McConnell 61050
Milledgeville 61051
Monroe, WI 53566
Mt. Carroll 61053
Mt. Morris 61054
Nora 61059
Orangeville 61060
Oregon 61061
Pearl City 61062
Pecatonica 61063
Polo 61064
Ridott 61067
Rock City 61070
Rockton 61072
Savanna 61074
Shannon 61078
Stockton 61085
Warren 61087
Winnebago 61088
Winslow 61089

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