National Register listings in Butler County, Pennsylvania
Most notable listings
Harmony Historic District NHL Harmony · District · listed 1973 
Butler Armory Butler · Building · listed 1991 
Butler County Courthouse Butler · Building · listed 1977 
Butler County National Bank Butler · Building · listed 1995 
Butler Historic District Butler · District · listed 2003 
Elm Court Butler · Building · listed 1979 
Lowrie, Sen. Walter, House Butler · Building · listed 1979 
Passavant House Zelienople · Building · listed 1977 
Preston Laboratories Butler · Building · listed 2012 
Roebling, John, House Saxonburg · Building · listed 1976 Historic districts (4)
- Butler Historic District — Butler
- Butler Veterans Administration Hospital Historic District — Butler Township
- Harmony Historic District — Harmony
- Saxonburg Historic District — Saxonburg
All listings
Places: Butler (7) · Saxonburg (2) · Butler Township (1) · Harmony (1) · Jackson Township (1) · Zelienople (1)
| Name | Place | Type | Listed |
|---|---|---|---|
| Butler Armory | Butler | Building | 1991 |
| Butler County Courthouse | Butler | Building | 1977 |
| Butler County National Bank | Butler | Building | 1995 |
| Butler Historic District | Butler | District | 2003 |
| Butler Veterans Administration Hospital Historic District | Butler Township | District | 2022 |
| Elm Court | Butler | Building | 1979 |
| Harmony Historic District NHL | Harmony | District | 1973 |
| Harmony Mennonite Meetinghouse and Cemetery | Jackson Township | Building | 2016 |
| Lowrie, Sen. Walter, House | Butler | Building | 1979 |
| Passavant House | Zelienople | Building | 1977 |
| Preston Laboratories | Butler | Building | 2012 |
| Roebling, John, House | Saxonburg | Building | 1976 |
| Saxonburg Historic District | Saxonburg | District | 2003 |
State Historic Preservation Office
Nominations, tax-credit certifications and official records for Pennsylvania go through the Pennsylvania State Historic Preservation Office. See how to nominate a property.