Bank Branches › Iowa › O'Brien County › 934 3rd Ave
Full-service office · FDIC office no. 5154
The Security National Bank of Sioux City, Iowa
934 3rd Ave, Sheldon, IA 51201
Open · June 2026
$60.7M
deposits, 2026
1928
established
8th
of 13 in county
3
names on the sign
| Date | Bank on the sign | Deposits | Change |
|---|---|---|---|
| Jun 30 2026 | The Security National Bank of Sioux City, Iowa | $60.7M | +7% |
| Jun 30 2025 | The Security National Bank of Sioux City, Iowa | $56.8M | −20% |
| Jun 30 2024 | The Security National Bank of Sioux City, IowaNEW NAME | $71.3M | +2% |
| Jun 30 2023 | Northwestern Bank | $70.1M | −3% |
| Jun 30 2022 | Northwestern Bank | $72.6M | +10% |
| Jun 30 2021 | Northwestern Bank | $65.8M | +2% |
| Jun 30 2020 | Northwestern Bank | $64.3M | +6% |
| Jun 30 2019 | Northwestern Bank | $60.4M | −11% |
| Jun 30 2018 | Northwestern Bank | $67.7M | +24% |
| Jun 30 2017 | Northwestern Bank | $54.7M | −7% |
| Jun 30 2016 | Northwestern Bank | $58.5M | +1% |
| Jun 30 2015 | Northwestern Bank | $57.7M | +8% |
| Jun 30 2014 | Northwestern Bank | $53.6M | −10% |
| Jun 30 2013 | Northwestern Bank | $59.4M | +15% |
| Jun 30 2012 | Northwestern Bank | $51.8M | +11% |
| Jun 30 2011 | Northwestern Bank | $46.7M | +11% |
| Jun 30 2010 | Northwestern Bank | $42.2M | −1% |
| Jun 30 2009 | Northwestern Bank | $42.7M | −4% |
| Jun 30 2008 | Northwestern Bank | $44.3M | +11% |
| Jun 30 2007 | Northwestern Bank | $39.8M | −10% |
| Jun 30 2006 | Northwestern BankNEW NAME | $44.0M | +9% |
| Jun 30 2005 | Security State Bank | $40.3M | +3% |
| Jun 30 2004 | Security State Bank | $39.1M | −9% |
| Jun 30 2003 | Security State Bank | $43.1M | −1% |
| Jun 30 2002 | Security State Bank | $43.5M | −2% |
| Jun 30 2001 | Security State Bank | $44.4M | +4% |
| Jun 30 2000 | Security State Bank | $42.7M | −11% |
| Jun 30 1999 | Security State Bank | $48.0M | +4% |
| Jun 30 1998 | Security State Bank | $46.0M | −3% |
| Jun 30 1997 | Security State Bank | $47.4M | −6% |
| Jun 30 1996 | Security State Bank | $50.5M | −3% |
| Jun 30 1995 | Security State Bank | $52.0M | +1% |
| Jun 30 1994 | Security State Bank | $51.4M | |
| 1928-01-06 | Office established (FDIC record) — 66 years before this passbook begins | ||
Nearest other open offices in O'Brien County
- 0.1 miCitizens State Bank · 808 3rd Ave, Sheldon
- 0.3 miIowa State Bank · 627 2nd Ave, Sheldon
- 1.6 miPeoples Bank · 2400 Park St, Sheldon
- 10.0 miIowa State Bank · 203 W 7th St, Sanborn
- 10.1 miSanborn Savings Bank · 219 Main St, Sanborn
- 13.2 miSavings Bank · 185 S Green Ave, Primghar
- 13.2 miThe First National Bank of Primghar · 108 S Hayes Ave, Primghar
- 16.1 miSecurity State Bank · 305 E Grand Ave, Paullina
All banks in O'Brien County →
Every The Security National Bank of Sioux City, Iowa office →
Earlier names and banks folded into The Security National Bank of Sioux City, Iowa →
Names on the sign
1994–2005Security State Bank2006–2023Northwestern Bank2024–nowThe Security National Bank of Sioux City, Iowa
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) 5154.