First Interstate Bank · New Underwood, SD
First Interstate Bank
Full-service brick-and-mortar office operated by First Interstate Bank at 404 S A Ave, New Underwood, SD.
- Street address
- 404 S A Ave
- County
- Pennington
- ZIP code
- 57761
- Service type
- Full-service brick-and-mortar office
- Deposits at this branch
- $44.9M (FDIC SOD, 2025)
- Established
- January 2, 1941
- Institution
- First Interstate Bank Bank
Source: U.S. FDIC BankFind & NCUA 5300 Call Report (public data). Data sources · Data as of Q1 2026
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