Bank Branches › South Dakota › Grant County › 302 S Main St
Full-service office · FDIC office no. 365005
First Interstate Bank
302 S Main St, Milbank, SD 57252
Open · June 2026
$79.2M
deposits, 2026
2002
established
2nd
of 5 in county
3
names on the sign
| Date | Bank on the sign | Deposits | Change |
|---|---|---|---|
| Jun 30 2026 | First Interstate Bank | $79.2M | −1% |
| Jun 30 2025 | First Interstate Bank | $79.7M | +1% |
| Jun 30 2024 | First Interstate Bank | $79.2M | −3% |
| Jun 30 2023 | First Interstate Bank | $81.7M | −28% |
| Jun 30 2022 | First Interstate BankNEW NAME | $113M | +4% |
| Jun 30 2021 | Great Western Bank | $109M | +8% |
| Jun 30 2020 | Great Western Bank | $101M | +9% |
| Jun 30 2019 | Great Western Bank | $92.4M | +7% |
| Jun 30 2018 | Great Western Bank | $86.2M | +12% |
| Jun 30 2017 | Great Western Bank | $77.0M | 0% |
| Jun 30 2016 | Great Western Bank | $77.3M | +6% |
| Jun 30 2015 | Great Western Bank | $72.9M | −2% |
| Jun 30 2014 | Great Western Bank | $74.8M | +5% |
| Jun 30 2013 | Great Western Bank | $70.9M | +3% |
| Jun 30 2012 | Great Western Bank | $68.9M | +4% |
| Jun 30 2011 | Great Western Bank | $66.5M | +4% |
| Jun 30 2010 | Great Western Bank | $64.1M | +2% |
| Jun 30 2009 | Great Western Bank | $63.1M | +3% |
| Jun 30 2008 | Great Western Bank | $61.1M | +11% |
| Jun 30 2007 | Great Western Bank | $55.0M | −5% |
| Jun 30 2006 | Great Western Bank | $57.7M | +52% |
| Jun 30 2005 | Great Western Bank | $38.0M | +9% |
| Jun 30 2004 | Great Western Bank | $34.9M | +20% |
| Jun 30 2003 | Great Western BankNEW NAME | $29.1M | +96% |
| Jun 30 2002 | F&M Bank | $14.8M |
Nearest other open offices in Grant County
- <0.1 miWells Fargo Bank, National Association · 402 S Main St, Milbank
- 0.1 miFrandsen Bank & Trust · 302 E 4th Ave, Milbank
- 0.3 miFirst Bank & Trust · 215 W 4th Ave, Milbank
- 9.8 miMinnwest Bank · 607 Cornell Ave, Big Stone City
All banks in Grant County →
Every First Interstate Bank office →
Earlier names and banks folded into First Interstate Bank →
Names on the sign
The FDIC office number stays with the building when banks merge or rename, so the same office appears under each owner. Follow an earlier name to see what became of that bank.
Deposits are the balances the bank assigned to this office on June 30 of each year, in nominal dollars. Source: FDIC Summary of Deposits, office (UNINUMBR) 365005.