Banks in Osage County, Kansas
11 active bank branches operated by 7 institutions, per FDIC records.
Active branches
11
Banks present
7
Deposits (2026)
$389M
Closings since 2020
0
0 openings
Largest banks by deposits in Osage County (2026)
| Bank | Deposits | Share | Branches |
|---|---|---|---|
| The Bennington State Bank | $87M | 22.3% | 2 |
| The Kansas State Bank Overbrook Kansas | $84M | 21.5% | 2 |
| The Lyndon State Bank | $81M | 20.8% | 2 |
| The First Security Bank | $59M | 15.1% | 2 |
| Landmark National Bank | $47M | 12.2% | 1 |
| The Citizens State Bank | $23M | 6% | 1 |
| First National Bank of Kansas | $9M | 2.2% | 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.