Bank Branches › Iowa › Monona County › 921 Iowa Ave
Full-service office · FDIC office no. 263118
Great Southern Bank
921 Iowa Ave, Onawa, IA 51040
Open · June 2026
$26.6M
deposits, 2026
1923
established
6th
of 11 in county
3
names on the sign
| Date | Bank on the sign | Deposits | Change |
|---|---|---|---|
| Jun 30 2026 | Great Southern Bank | $26.6M | −4% |
| Jun 30 2025 | Great Southern Bank | $27.9M | +2% |
| Jun 30 2024 | Great Southern Bank | $27.3M | −10% |
| Jun 30 2023 | Great Southern Bank | $30.2M | +5% |
| Jun 30 2022 | Great Southern Bank | $28.8M | +1% |
| Jun 30 2021 | Great Southern Bank | $28.6M | +2% |
| Jun 30 2020 | Great Southern Bank | $28.0M | +7% |
| Jun 30 2019 | Great Southern Bank | $26.1M | −7% |
| Jun 30 2018 | Great Southern Bank | $28.2M | −7% |
| Jun 30 2017 | Great Southern Bank | $30.2M | 0% |
| Jun 30 2016 | Great Southern Bank | $30.1M | +13% |
| Jun 30 2015 | Great Southern Bank | $26.6M | −4% |
| Jun 30 2014 | Great Southern Bank | $27.8M | −2% |
| Jun 30 2013 | Great Southern Bank | $28.5M | −5% |
| Jun 30 2012 | Great Southern Bank | $30.0M | −1% |
| Jun 30 2011 | Great Southern Bank | $30.4M | +5% |
| Jun 30 2010 | Great Southern BankNEW NAME | $29.0M | |
| Jun 30 2009 | First Federal Bank | not filed | |
| Jun 30 2008 | First Federal Bank | not filed | |
| Jun 30 2007 | First Federal Bank | not filed | |
| Jun 30 2006 | First Federal Bank | not filed | |
| Jun 30 2005 | First Federal Bank | not filed | |
| Jun 30 2004 | First Federal Bank | not filed | |
| Jun 30 2003 | First Federal Bank | not filed | |
| Jun 30 2002 | First Federal Bank | $27.4M | −5% |
| Jun 30 2001 | First Federal Bank | $28.7M | +15% |
| Jun 30 2000 | First Federal Bank | $25.0M | +4% |
| Jun 30 1999 | First Federal BankNEW NAME | $24.1M | 0% |
| Jun 30 1998 | First Federal Savings Bank of Siouxland | $24.1M | −3% |
| Jun 30 1997 | First Federal Savings Bank of Siouxland | $24.8M | −1% |
| Jun 30 1996 | First Federal Savings Bank of Siouxland | $25.0M | −2% |
| Jun 30 1995 | First Federal Savings Bank of Siouxland | $25.5M | +1% |
| Jun 30 1994 | First Federal Savings Bank of Siouxland | $25.2M | |
| 1923-01-01 | Office established (FDIC record) — 71 years before this passbook begins | ||
Nearest other open offices in Monona County
- <0.1 miU.S. Bank National Association · 1030 10th St, Onawa
- 0.1 miBankFirst · 902 10th St, Onawa
- 1.1 miUnited Bank of Iowa · 21945 State Highway 175, Onawa
- 7.6 miSloan State Bank · 524 Whittier St, Whiting
- 14.5 miUnited Bank of Iowa · 124 Oak St, Moorhead
- 16.5 miCommunity Bank · 205 1st St, Soldier
- 18.3 miThe Shelby County State Bank · 414 Main St, Mapleton
- 18.3 miFirst Security Bank · 401 Main St, Mapleton
All banks in Monona County →
Every Great Southern Bank office →
Earlier names and banks folded into Great Southern Bank →
Names on the sign
1994–1998First Federal Savings Bank of Siouxland1999–2009First Federal Bank2010–nowGreat Southern 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) 263118.