Bank Branches › Colorado › Boulder County › 2100 Main St
Full-service office · FDIC office no. 291684
First Interstate Bank
2100 Main St, Longmont, CO 80501
Open · June 2026
$38.2M
deposits, 2026
1999
established
63rd
of 89 in county
4
names on the sign
| Date | Bank on the sign | Deposits | Change |
|---|---|---|---|
| Jun 30 2026 | First Interstate Bank | $38.2M | −16% |
| Jun 30 2025 | First Interstate Bank | $45.3M | +8% |
| Jun 30 2024 | First Interstate Bank | $42.1M | −8% |
| Jun 30 2023 | First Interstate Bank | $45.9M | −6% |
| Jun 30 2022 | First Interstate BankNEW NAME | $49.0M | −11% |
| Jun 30 2021 | Great Western Bank | $55.3M | −9% |
| Jun 30 2020 | Great Western Bank | $60.8M | 0% |
| Jun 30 2019 | Great Western Bank | $61.0M | +8% |
| Jun 30 2018 | Great Western Bank | $56.6M | −4% |
| Jun 30 2017 | Great Western Bank | $59.2M | +24% |
| Jun 30 2016 | Great Western Bank | $47.6M | −2% |
| Jun 30 2015 | Great Western Bank | $48.7M | −5% |
| Jun 30 2014 | Great Western Bank | $51.3M | +43% |
| Jun 30 2013 | Great Western Bank | $35.9M | −7% |
| Jun 30 2012 | Great Western Bank | $38.7M | +13% |
| Jun 30 2011 | Great Western Bank | $34.3M | −10% |
| Jun 30 2010 | Great Western Bank | $38.1M | +26% |
| Jun 30 2009 | Great Western BankNEW NAME | $30.1M | +59% |
| Jun 30 2008 | First Community Bank | $18.9M | −25% |
| Jun 30 2007 | First Community BankNEW NAME | $25.2M | −14% |
| Jun 30 2006 | Heritage Bank | $29.3M | +22% |
| Jun 30 2005 | Heritage Bank | $24.0M | +16% |
| Jun 30 2004 | Heritage Bank | $20.7M | +62% |
| Jun 30 2003 | Heritage Bank | $12.8M | +33% |
| Jun 30 2002 | Heritage Bank | $9.6M | +23% |
| Jun 30 2001 | Heritage Bank | $7.8M | +83% |
| Jun 30 2000 | Heritage Bank | $4.3M | −13% |
| Jun 30 1999 | Heritage Bank | $4.9M |
Nearest other open offices in Boulder County
- 0.2 miRNB STATE BANK · 2001 Main St, Longmont
- 0.3 miFirst National Bank of Omaha · 2305 Main St, Longmont
- 0.3 miPNC Bank, National Association · 1849 Main St, Longmont
- 0.5 miPNC Bank, National Association · 1707 Main St, Longmont
- 1.5 miWells Fargo Bank, National Association · 1645 Pace St, Longmont
- 1.6 miU.S. Bank National Association · 825 Coffman St, Longmont
- 1.6 miSouthState Bank, National Association · 1650 Pace St, Longmont
- 1.6 miBMO Bank National Association · 1610 Hover St, Longmont
All banks in Boulder County →
Every First Interstate Bank office →
Earlier names and banks folded into First Interstate Bank →
Names on the sign
1999–2006Heritage Bank2007–2008First Community Bank2009–2021Great Western Bank2022–nowFirst Interstate Bank
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) 291684.