| Uninum | Name | Address 1 | Address 2 | City | County | Established | Accquired | | 181647 | SANDY LAKE BRANCH | 3309 North Main Street | Youngstown-Warren-Boardman, OH-PA 16145 | Sandy Lake | Mercer | 12/05/1974 | 12/31/1999 |
| 181648 | COCHRANTON BRANCH | 110 N Franklin St | Meadville, PA 16314 | Cochranton | Crawford | 01/29/1997 | 12/31/1999 |
| 181649 | JACKSON TOWNSHIP BRANCH | 811 Franklin Rd | Youngstown-Warren-Boardman, OH-PA 16137 | Mercer | Mercer | 12/22/1997 | 12/31/1999 |
| 185593 | CLINTONVILLE BRANCH | 101 Franklin St | Oil City, PA 16372 | Clintonville | Venango | 10/15/1956 | 09/27/1993 |
| 185597 | FREDONIA BRANCH | 71 Main St | Youngstown-Warren-Boardman, OH-PA 16124 | Fredonia | Mercer | 09/02/1961 | 11/09/1987 |
| 185604 | CAMBRIDGE SPRINGS BRANCH | 144 Venango Ave | Meadville, PA 16403 | Cambridge Springs | Crawford | 06/13/1966 | 04/30/2001 |
| 334309 | MEADVILLE BRANCH | 16411 Conneaut Lake Rd | Meadville, PA 16335 | Meadville | Crawford | 04/10/2000 | 12/31/1999 |
| 342 | Mercer County State Bank | 3279 South Main Street | Youngstown-Warren-Boardman, OH-PA 16145 | Sandy Lake | Mercer | 06/20/1911 | |
| 479025 | GROVE CITY BRANCH | 712 W Main St | Youngstown-Warren-Boardman, OH-PA 16127 | Grove City | Mercer | 10/01/2007 | 12/31/1999 |
| 591749 | HERMITAGE BRANCH OFFICE | 1353 N Hermitage Rd | Youngstown-Warren-Boardman, OH-PA 16148 | Hermitage | Mercer | 09/11/2017 | 12/31/1999 |
| 607833 | HARRISVILLE | 549 S Main St | Pittsburgh, PA 16038 | Harrisville | Butler | 12/28/2018 | 12/31/1999 |
| 659108 | MERCER BRANCH | 147 N. Diamond St. | Youngstown-Warren-Boardman, OH-PA 16137 | Mercer | Mercer | 09/18/2023 | 12/31/1999 |
