| | 4206504240 | Barnett township | Jefferson County | PA | Active government
providing primary
general-purpose functions A |
| | 4206504728 | Beaver township | Jefferson County | PA | Active government
providing primary
general-purpose functions A |
| | 4206505200 | Bell township | Jefferson County | PA | Active government
providing primary
general-purpose functions A |
| | 4206506344 | Big Run borough | Jefferson County | PA | Fictitious entity created
to fill the Census Bureau
geographic hierarchy F |
| | 4206508960 | Brockway borough | Jefferson County | PA | Fictitious entity created
to fill the Census Bureau
geographic hierarchy F |
| | 4206509224 | Brookville borough | Jefferson County | PA | Fictitious entity created
to fill the Census Bureau
geographic hierarchy F |
| | 4206514408 | Clover township | Jefferson County | PA | Active government
providing primary
general-purpose functions A |
| | 4206516304 | Corsica borough | Jefferson County | PA | Fictitious entity created
to fill the Census Bureau
geographic hierarchy F |
| | 4206522872 | Eldred township | Jefferson County | PA | Active government
providing primary
general-purpose functions A |
| | 4206525136 | Falls Creek borough | Jefferson County | PA | Fictitious entity created
to fill the Census Bureau
geographic hierarchy F |