Or by the first letter of a Bank Name
| Headquarters | Date Established | Assets (1000s) | Type | |
|---|---|---|---|---|
| Ipswich State Bank | Ipswich, SD | 04-13-1938 | $66,845 | BK |
| First Western Federal Savings Bank | Rapid City, SD | 06-06-1979 | $64,211 | BK |
| Sunrise Bank Dakota | Onida, SD | 01-01-1925 | $58,966 | BK |
| The Security State Bank | Emery, SD | 01-01-1920 | $57,911 | BK |
| Bryant State Bank | Bryant, SD | 03-01-1915 | $53,956 | BK |
| RAPID CITY TELCO | Rapid City, SD | 01-01-1945 | $44,334 | CU |
| FT RANDALL | WAGNER, SD | 01-01-1951 | $42,689 | CU |
| M O | Huron, SD | 01-01-1950 | $42,438 | CU |
| SIOUX VALLEY COOP | Watertown, SD | 01-01-1953 | $40,596 | CU |
| Richland State Bank | Bruce, SD | 01-01-1927 | $40,310 | BK |
| DAKOTA STAR | RAPID CITY, SD | 01-01-1952 | $40,093 | CU |
| EAST RIVER | Madison, SD | 01-01-1956 | $39,368 | CU |
| OAHE | Pierre, SD | 01-01-1955 | $39,138 | CU |
| The Farmers State Bank of Turton | Turton, SD | 08-13-1915 | $37,945 | BK |
| The Farmers and Merchants State Bank | Scotland, SD | 03-06-1934 | $34,063 | BK |