First Interstate Bank
4 detailed locations
Independent directory for U.S. banks, credit unions, branches and published rates.
Data methodologyThe FDIC reported 20 deposit-reporting offices from 10 institutions in Rapid City as of June 30, 2025. Bankular currently provides 20 detailed location pages with addresses, maps and directions.
Market analysis
U.S. Bank held 18.04% of reported branch deposits in Rapid City. The three largest institutions together held 50.45%. Bankular places the resulting HHI of 1,356 in its lower concentration descriptive band.
Branch map
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Detailed directory
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Location pages
Local deposit market
| Institution | Reported offices | Deposits | Share |
|---|---|---|---|
| U.S. Bank | 3 | $553.7M | 18.04% |
| Wells Fargo Bank | 3 | $541.3M | 17.64% |
| First Interstate Bank | 4 | $452.9M | 14.76% |
| Security First Bank | 2 | $400.4M | 13.05% |
| Black Hills Community Bank | 1 | $383.9M | 12.51% |
| Pioneer Bank & Trust | 2 | $345.8M | 11.27% |
| Dacotah Bank | 1 | $155.3M | 5.06% |
| First National Bank | 1 | $99.4M | 3.24% |
| BankWest, Inc. | 2 | $97.9M | 3.19% |
| First Western Federal Savings Bank | 1 | $37.8M | 1.23% |