Bank Branches › Banks › Security Bank Midwest
Security Bank Midwest
6 offices in 2 states as of June 30, 2026. $239 million in deposits. Main office: 1600 Main St, Tyndall, SD. FDIC certificate 485.
6
offices
2
states
−0
gone since 2025
+0
new since 2025
Where its offices are
Offices over time
Bank offices reporting on June 30Deposits booked at them (nominal dollars, own scale)
| Date | offices | Change | Deposits |
|---|---|---|---|
| Jun 30 1994 | 1 | $33.7M | |
| Jun 30 1995 | 1 | · | $38.9M |
| Jun 30 2000 | 1 | · | $26.3M |
| Jun 30 2005 | 1 | · | $23.9M |
| Jun 30 2010 | 1 | · | $25.5M |
| Jun 30 2015 | 3 | · | $108M |
| Jun 30 2020 | 4 | +1 | $185M |
| Jun 30 2025PEAK | 6 | +1 | $254M |
| Jun 30 2026NOW | 6 | · | $239M |
Open the full passbook — all 33 years ▾
| Date | offices | Change | Deposits |
|---|---|---|---|
| Jun 30 1994 | 1 | $33.7M | |
| Jun 30 1995 | 1 | · | $38.9M |
| Jun 30 1996 | 1 | · | $39.3M |
| Jun 30 1997 | 1 | · | $35.1M |
| Jun 30 1998 | 1 | · | $30.3M |
| Jun 30 1999 | 1 | · | $29.2M |
| Jun 30 2000 | 1 | · | $26.3M |
| Jun 30 2001 | 1 | · | $25.7M |
| Jun 30 2002 | 1 | · | $25.8M |
| Jun 30 2003 | 1 | · | $25.3M |
| Jun 30 2004 | 1 | · | $25.3M |
| Jun 30 2005 | 1 | · | $23.9M |
| Jun 30 2006 | 1 | · | $22.0M |
| Jun 30 2007 | 1 | · | $22.2M |
| Jun 30 2008 | 1 | · | $22.4M |
| Jun 30 2009 | 1 | · | $24.1M |
| Jun 30 2010 | 1 | · | $25.5M |
| Jun 30 2011 | 1 | · | $28.9M |
| Jun 30 2012 | 1 | · | $31.8M |
| Jun 30 2013 | 2 | +1 | $74.9M |
| Jun 30 2014 | 3 | +1 | $109M |
| Jun 30 2015 | 3 | · | $108M |
| Jun 30 2016 | 3 | · | $128M |
| Jun 30 2017 | 3 | · | $139M |
| Jun 30 2018 | 3 | · | $170M |
| Jun 30 2019 | 3 | · | $200M |
| Jun 30 2020 | 4 | +1 | $185M |
| Jun 30 2021 | 5 | +1 | $206M |
| Jun 30 2022 | 5 | · | $240M |
| Jun 30 2023 | 5 | · | $238M |
| Jun 30 2024 | 5 | · | $271M |
| Jun 30 2025PEAK | 6 | +1 | $254M |
| Jun 30 2026NOW | 6 | · | $239M |
Counted under FDIC certificate 485. When one bank buys another, the bought bank's offices move onto the buyer's certificate, so a jump here is usually a merger, not a building spree. Its earlier names and the banks folded into it →
Offices with the most deposits booked
| Office | Deposits |
|---|---|
| Security Bank MidwestTyndall, SD | $93.0M |
| Chancellor BranchChancellor, SD | $67.1M |
| Heron Lake BrHeron Lake, MN | $29.2M |
| Jackson, Mn BranchJackson, MN | $20.8M |
| Lennox BranchLennox, SD | $19.7M |
| Viborg BranchViborg, SD | $9.0M |
By state
| State | Offices |
|---|---|
| South Dakota | 4 |
| Minnesota | 2 |