| | 4212500988 | Allenport borough | Washington County | PA | Fictitious entity created
to fill the Census Bureau
geographic hierarchy F |
| | 4212502384 | Amwell township | Washington County | PA | Active government
providing primary
general-purpose functions A |
| | 4212504568 | Beallsville borough | Washington County | PA | Fictitious entity created
to fill the Census Bureau
geographic hierarchy F |
| | 4212505672 | Bentleyville borough | Washington County | PA | Fictitious entity created
to fill the Census Bureau
geographic hierarchy F |
| | 4212506840 | Blaine township | Washington County | PA | Active government
providing primary
general-purpose functions A |
| | 4212510032 | Buffalo township | Washington County | PA | Active government
providing primary
general-purpose functions A |
| | 4212510224 | Burgettstown borough | Washington County | PA | Fictitious entity created
to fill the Census Bureau
geographic hierarchy F |
| | 4212510768 | California borough | Washington County | PA | Fictitious entity created
to fill the Census Bureau
geographic hierarchy F |
| | 4212511152 | Canonsburg borough | Washington County | PA | Fictitious entity created
to fill the Census Bureau
geographic hierarchy F |
| | 4212511176 | Canton township | Washington County | PA | Active government
providing primary
general-purpose functions A |