Jefferson County Ohio is covered by a total of 25 ZIP Codes. There are 10 ZIP Codes in Jefferson County that extend into adjacent counties (Belmont County, Carroll County, Columbiana County, and Harrison County). Of the ZIP codes within or partially within Jefferson County there are 17 Standard ZIP Codes and 7 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 Jefferson 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 | |||
|---|---|---|---|---|---|
| Adena | Standard | |||
| Amsterdam | Standard | |||
| Cadiz | Standard | |||
| Bergholz | Standard | |||
| Bloomingdale | Standard | |||
| Brilliant | Standard | |||
| Dillonvale | Standard | |||
| East Springfield | PO Box | |||
| Empire | PO Box | |||
| Hammondsville | Standard | |||
| Irondale | Standard | |||
| Mingo Junction | Standard | |||
| Mount Pleasant | PO Box | |||
| Piney Fork | PO Box | |||
| Rayland | Standard | |||
| Richmond | Standard | |||
| Salineville | Standard | |||
| Smithfield | PO Box | |||
| Steubenville | Standard | |||
| Steubenville | Standard | |||
| Stratton | PO Box | |||
| Tiltonsville | Standard | |||
| Toronto | Standard | |||
| Wolf Run | PO Box | |||
| Yorkville | Standard |