Bank Branches › Missouri › St. Charles County › 2455 Highway K
Full-service office · FDIC office no. 428741
Simmons Bank
2455 Highway K, O Fallon, MO 63368
Open · June 2026
$29.7M
deposits, 2026
2004
established
85th
of 107 in county
2
names on the sign
| Date | Bank on the sign | Deposits | Change |
|---|---|---|---|
| Jun 30 2026 | Simmons Bank | $29.7M | −3% |
| Jun 30 2025 | Simmons Bank | $30.7M | −10% |
| Jun 30 2024 | Simmons Bank | $34.2M | −2% |
| Jun 30 2023 | Simmons Bank | $34.8M | −16% |
| Jun 30 2022 | Simmons Bank | $41.6M | −28% |
| Jun 30 2021 | Simmons Bank | $58.1M | +98% |
| Jun 30 2020 | Simmons Bank | $29.4M | 0% |
| Jun 30 2019 | Simmons BankNEW NAME | $29.5M | −6% |
| Jun 30 2018 | Reliance Bank | $31.3M | +12% |
| Jun 30 2017 | Reliance Bank | $27.9M | +11% |
| Jun 30 2016 | Reliance Bank | $25.1M | +1% |
| Jun 30 2015 | Reliance Bank | $24.8M | +8% |
| Jun 30 2014 | Reliance Bank | $22.9M | −6% |
| Jun 30 2013 | Reliance Bank | $24.5M | +12% |
| Jun 30 2012 | Reliance Bank | $21.9M | −8% |
| Jun 30 2011 | Reliance Bank | $23.9M | −15% |
| Jun 30 2010 | Reliance Bank | $28.1M | +6% |
| Jun 30 2009 | Reliance Bank | $26.5M | +5% |
| Jun 30 2008 | Reliance Bank | $25.3M | −9% |
| Jun 30 2007 | Reliance Bank | $27.8M | +10% |
| Jun 30 2006 | Reliance Bank | $25.4M | +26% |
| Jun 30 2005 | Reliance Bank | $20.1M | +22531% |
| Jun 30 2004 | Reliance Bank | $89K |
Nearest other open offices in St. Charles County
- <0.1 miGreat Southern Bank · 2419 Highway K, O Fallon
- 0.2 miMidland States Bank · 2341 Highway K, O Fallon
- 0.3 miJPMorgan Chase Bank, National Association · 2204 Highway K, O Fallon
- 0.5 miBank of Springfield · 101 Laura K Dr, O Fallon
- 0.7 miBank of America, National Association · 110 Fallon Loop Rd, O Fallon
- 0.9 miSt. Johns Bank and Trust Company · 2897 Highway K, O Fallon
- 1.0 miCommerce Bank · 2913 Highway K, O Fallon
- 1.1 miBank of Franklin County · 100 Christina Marie Dr, O Fallon
All banks in St. Charles County →
Every Simmons Bank office →
Earlier names and banks folded into Simmons Bank →
Names on the sign
2004–2018Reliance Bank2019–nowSimmons 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) 428741.