Stephenson County Illinois is covered by a total of 17 ZIP Codes. There are 8 ZIP Codes in Stephenson County that extend into adjacent counties (Carroll County, Jo Daviess County, Ogle County, and Winnebago County). Of the ZIP codes within or partially within Stephenson County there are 15 Standard ZIP Codes and 2 PO Box ZIP Codes.
Click on the ZIP Codes in the interactive map to view more information. The map control in the upper right corner can be used to toggle map layers on and off. The red outline is the border of Stephenson County and can be turned on and off. Each type of postal code can also be turned on and off.
| ZIP Code | ZIP Code City/Town | ZIP Code Type | |||
|---|---|---|---|---|---|
| Baileyville | Standard | |||
| Cedarville | PO Box | |||
| Dakota | Standard | |||
| Davis | Standard | |||
| Eleroy | PO Box | |||
| Freeport | Standard | |||
| German Valley | Standard | |||
| Kent | Standard | |||
| Lena | Standard | |||
| McConnell | Standard | |||
| Orangeville | Standard | |||
| Pearl City | Standard | |||
| Pecatonica | Standard | |||
| Ridott | Standard | |||
| Rock City | Standard | |||
| Shannon | Standard | |||
| Winslow | Standard |