| | 4212900332 | Adamsburg borough | Westmoreland County | PA | Fictitious entity created
to fill the Census Bureau
geographic hierarchy F |
| | 4212900892 | Allegheny township | Westmoreland County | PA | Active government
providing primary
general-purpose functions A |
| | 4212903088 | Arnold city | Westmoreland County | PA | Fictitious entity created
to fill the Census Bureau
geographic hierarchy F |
| | 4212903120 | Arona borough | Westmoreland County | PA | Fictitious entity created
to fill the Census Bureau
geographic hierarchy F |
| | 4212903688 | Avonmore borough | Westmoreland County | PA | Fictitious entity created
to fill the Census Bureau
geographic hierarchy F |
| | 4212905208 | Bell township | Westmoreland County | PA | Active government
providing primary
general-purpose functions A |
| | 4212907480 | Bolivar borough | Westmoreland County | PA | Fictitious entity created
to fill the Census Bureau
geographic hierarchy F |
| | 4212915912 | Cook township | Westmoreland County | PA | Active government
providing primary
general-purpose functions A |
| | 4212918768 | Delmont borough | Westmoreland County | PA | Fictitious entity created
to fill the Census Bureau
geographic hierarchy F |
| | 4212918960 | Derry borough | Westmoreland County | PA | Fictitious entity created
to fill the Census Bureau
geographic hierarchy F |