Bank Branches › Iowa › Monona County › 401 Main St
Full-service office · FDIC office no. 200
First Security Bank
401 Main St, Mapleton, IA 51034
Open · June 2026
$37.8M
deposits, 2026
1878
established
5th
of 11 in county
3
names on the sign
| Date | Bank on the sign | Deposits | Change |
|---|---|---|---|
| Jun 30 2026 | First Security Bank | $37.8M | −6% |
| Jun 30 2025 | First Security Bank | $40.3M | −11% |
| Jun 30 2024 | First Security Bank | $45.2M | +7% |
| Jun 30 2023 | First Security Bank | $42.5M | −14% |
| Jun 30 2022 | First Security Bank | $49.6M | −2% |
| Jun 30 2021 | First Security Bank | $50.8M | +9% |
| Jun 30 2020 | First Security BankNEW NAME | $46.6M | +15% |
| Jun 30 2019 | Valley Bank & Trust | $40.5M | +1% |
| Jun 30 2018 | Valley Bank & Trust | $40.1M | −1% |
| Jun 30 2017 | Valley Bank & Trust | $40.4M | −7% |
| Jun 30 2016 | Valley Bank & Trust | $43.5M | −1% |
| Jun 30 2015 | Valley Bank & Trust | $43.7M | −7% |
| Jun 30 2014 | Valley Bank & Trust | $47.1M | −5% |
| Jun 30 2013 | Valley Bank & Trust | $49.5M | +3% |
| Jun 30 2012 | Valley Bank & Trust | $48.0M | +1% |
| Jun 30 2011 | Valley Bank & Trust | $47.3M | +23% |
| Jun 30 2010 | Valley Bank & Trust | $38.4M | +2% |
| Jun 30 2009 | Valley Bank & Trust | $37.5M | +13% |
| Jun 30 2008 | Valley Bank & Trust | $33.4M | +1% |
| Jun 30 2007 | Valley Bank & Trust | $33.0M | +2% |
| Jun 30 2006 | Valley Bank & Trust | $32.4M | +2% |
| Jun 30 2005 | Valley Bank & Trust | $31.8M | −5% |
| Jun 30 2004 | Valley Bank & Trust | $33.4M | −7% |
| Jun 30 2003 | Valley Bank & Trust | $36.1M | −2% |
| Jun 30 2002 | Valley Bank & Trust | $36.9M | 0% |
| Jun 30 2001 | Valley Bank & Trust | $37.0M | −1% |
| Jun 30 2000 | Valley Bank & Trust | $37.4M | 0% |
| Jun 30 1999 | Valley Bank & Trust | $37.2M | +3% |
| Jun 30 1998 | Valley Bank & Trust | $36.3M | +11% |
| Jun 30 1997 | Valley Bank & Trust | $32.6M | +3% |
| Jun 30 1996 | Valley Bank & Trust | $31.8M | +8% |
| Jun 30 1995 | Valley Bank & TrustNEW NAME | $29.4M | +4% |
| Jun 30 1994 | Mapleton Trust & Savings Bank | $28.3M | |
| 1878-10-03 | Office established (FDIC record) — 116 years before this passbook begins | ||
Nearest other open offices in Monona County
- <0.1 miThe Shelby County State Bank · 414 Main St, Mapleton
- 0.2 miThe Security National Bank of Sioux City, Iowa · 313 N 4th St, Mapleton
- 9.2 miCommunity Bank · 131 E Main St, Ute
- 12.6 miCommunity Bank · 205 1st St, Soldier
- 17.1 miUnited Bank of Iowa · 124 Oak St, Moorhead
- 18.3 miBankFirst · 902 10th St, Onawa
- 18.3 miGreat Southern Bank · 921 Iowa Ave, Onawa
- 18.4 miU.S. Bank National Association · 1030 10th St, Onawa
All banks in Monona County →
Every First Security Bank office →
Earlier names and banks folded into First Security 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) 200.