| | Barkeyville borough | 4204136 | Venango County 42121 | PA | Oil City, PA 36340 | | | https://maps.google.com/?q=Barkeyvilleborough+PA |
| | Clintonville borough | 4214376 | Venango County 42121 | PA | Oil City, PA 36340 | | | https://maps.google.com/?q=Clintonvilleborough+PA |
| | Cooperstown borough | 4216080 | Venango County 42121 | PA | Oil City, PA 36340 | | | https://maps.google.com/?q=Cooperstownborough+PA |
| | Emlenton borough (part) | 4223568 | Venango County 42121 | PA | Oil City, PA 36340 | | | https://maps.google.com/?q=Emlentonborough+PA |
| | Franklin city | 4227456 | Venango County 42121 | PA | Oil City, PA 36340 | | | https://maps.google.com/?q=Franklincity+PA |
| | Oil City city | 4256456 | Venango County 42121 | PA | Oil City, PA 36340 | | Y | https://maps.google.com/?q=OilCitycity+PA |
| | Pleasantville borough | 4261512 | Venango County 42121 | PA | Oil City, PA 36340 | | | https://maps.google.com/?q=Pleasantvilleborough+PA |
| | Polk borough | 4261936 | Venango County 42121 | PA | Oil City, PA 36340 | | | https://maps.google.com/?q=Polkborough+PA |
| | Rouseville borough | 4266440 | Venango County 42121 | PA | Oil City, PA 36340 | | | https://maps.google.com/?q=Rousevilleborough+PA |
| | Sugarcreek borough | 4275000 | Venango County 42121 | PA | Oil City, PA 36340 | | | https://maps.google.com/?q=Sugarcreekborough+PA |