| | 4201900300 | Adams township | Butler County | PA | Active government
providing primary
general-purpose functions A |
| | 4201900860 | Allegheny township | Butler County | PA | Active government
providing primary
general-purpose functions A |
| | 4201908096 | Brady township | Butler County | PA | Active government
providing primary
general-purpose functions A |
| | 4201909528 | Bruin borough | Butler County | PA | Fictitious entity created
to fill the Census Bureau
geographic hierarchy F |
| | 4201910000 | Buffalo township | Butler County | PA | Active government
providing primary
general-purpose functions A |
| | 4201910464 | Butler city | Butler County | PA | Fictitious entity created
to fill the Census Bureau
geographic hierarchy F |
| | 4201910472 | Butler township | Butler County | PA | Active government
providing primary
general-purpose functions A |
| | 4201910800 | Callery borough | Butler County | PA | Fictitious entity created
to fill the Census Bureau
geographic hierarchy F |
| | 4201912024 | Center township | Butler County | PA | Active government
providing primary
general-purpose functions A |
| | 4201912992 | Cherry township | Butler County | PA | Active government
providing primary
general-purpose functions A |