RANKING ·
Lowest cost of deposits in South Dakota
42 of 58 banks in South Dakota that filed for the quarter ended June 30, 2026 are ranked. At least $100 million in total assets. Institutions with equal values share a rank. Source: FDIC quarterly financial data.
| Rank | Institution | Headquarters | Cost of all deposits, annualized for the quarter | Total assets |
|---|---|---|---|---|
| 1 | Pathward N.A. | Sioux Falls, SD | 0.01% | $7.3 billion |
| 2 | The Bancorp Bank National Association | Sioux Falls, SD | 0.12% | $9.2 billion |
| 3 | Sunrise Banks N.A. | Sioux Falls, SD | 0.62% | $2.8 billion |
| 4 | Dnb National Bank | Clear Lake, SD | 1.11% | $124 million |
| 5 | Heartland State Bank | Redfield, SD | 1.27% | $154 million |
| 6 | First Savings Bank | Beresford, SD | 1.34% | $1.6 billion |
| 7 | Pioneer Bank & Trust | Belle Fourche, SD | 1.36% | $1.0 billion |
| 8 | First Fidelity Bank | Burke, SD | 1.49% | $717 million |
| 9 | Wells Fargo Bank N.A. | Sioux Falls, SD | 1.49% | $1.9 trillion |
| 10 | Cortrust Bank N.A. | Mitchell, SD | 1.52% | $1.6 billion |
| 11 | First National Bank | Fort Pierre, SD | 1.63% | $2.0 billion |
| 12 | First National Bank | Oldham, SD | 1.65% | $478 million |
| 13 | Security National Bank of South Dakota | Dakota Dunes, SD | 1.67% | $251 million |
| 14 | Merchants State Bank | Freeman, SD | 1.68% | $220 million |
| 15 | Security State Bank | Alexandria, SD | 1.71% | $103 million |
| 16 | Farmers State Bank | Parkston, SD | 1.75% | $255 million |
| 17 | First Premier Bank | Sioux Falls, SD | 1.80% | $3.6 billion |
| 18 | Security Bank Midwest | Tyndall, SD | 1.82% | $304 million |
| 19 | Commercial State Bank of Wagner | Wagner, SD | 1.84% | $260 million |
| 20 | First State Bank of Roscoe | Roscoe, SD | 1.88% | $147 million |
| 21 | Campbell County Bank | Herreid, SD | 1.91% | $241 million |
| 22 | Dacotah Bank | Aberdeen, SD | 1.91% | $4.9 billion |
| 23 | The First National Bank in Sioux Falls | Sioux Falls, SD | 1.92% | $2.1 billion |
| 24 | Great Plains Bank | Eureka, SD | 1.97% | $150 million |
| 25 | Citizens State Bank of Arlington | Arlington, SD | 2.02% | $153 million |
| 26 | Bankwest, Incorporated | Pierre, SD | 2.03% | $1.9 billion |
| 27 | Quoin Financial Bank | Miller, SD | 2.07% | $251 million |
| 28 | Reliabank Dakota | Estelline, SD | 2.09% | $788 million |
| 29 | Rivers Edge Bank | Marion, SD | 2.11% | $357 million |
| 30 | Security Savings Bank | Canton, SD | 2.16% | $557 million |
| 31 | First Bank & Trust | Brookings, SD | 2.16% | $4.8 billion |
| 32 | Farmers and Merchants State Bank | Plankinton, SD | 2.18% | $180 million |
| 33 | First National Bank in Philip | Philip, SD | 2.21% | $458 million |
| 34 | American Bank & Trust | Sioux Falls, SD | 2.21% | $2.2 billion |
| 35 | First Dakota National Bank | Yankton, SD | 2.23% | $3.4 billion |
| 36 | Black Hills Community Bank N.A. | Rapid City, SD | 2.25% | $490 million |
| 37 | Bankstar Financial | Elkton, SD | 2.38% | $363 million |
| 38 | Citibank N.A. | Sioux Falls, SD | 2.41% | $2.0 trillion |
| 39 | Frontier Bank | Sioux Falls, SD | 2.43% | $349 million |
| 40 | Plains Commerce Bank | Sioux Falls, SD | 2.56% | $1.3 billion |
| 41 | One American Bank | Centerville, SD | 3.31% | $285 million |
| 42 | 1st Financial Bank USA | Dakota Dunes, SD | 3.85% | $1.4 billion |
Rankings sort one published measure; they are not an overall judgment of any institution. Methodology · All rankings