Banks in Mercer County, Ohio
20 active bank branches operated by 9 institutions, per FDIC records.
Active branches
20
Banks present
9
Deposits (2026)
$2.0B
Closings since 2020
1
0 openings
Largest banks by deposits in Mercer County (2026)
| Bank | Deposits | Share | Branches |
|---|---|---|---|
| The Peoples Bank Co. | $701M | 34.4% | 6 |
| First Financial Bank | $439M | 21.6% | 3 |
| The St. Henry Bank | $385M | 18.9% | 3 |
| The Park National Bank | $157M | 7.7% | 1 |
| Mercer Savings Bank | $117M | 5.8% | 3 |
| The Citizens National Bank of Bluffton | $101M | 4.9% | 1 |
| Chase Bank | $67M | 3.3% | 1 |
| Osgood Bank | $66M | 3.3% | 1 |
| Woodforest National Bank | $2M | 0.1% | 1 |
Deposit location reflects the office to which deposits are reported and may not represent the residence of depositors.
Cities and towns
Transcribed from FDIC BankFind Suite active-location records and the annual Summary of Deposits. County assignment follows the FDIC branch record.