Bank Branches › Closed and merged banks › Minnesota › Fortress Bank Minnesota
What happened to Fortress Bank Minnesota?
Fortress Bank Minnesota in Houston, MN (earlier called Houston State Bank and 3 other names) merged into Eastwood Bank of Rochester, MN on Jun 8, 2007. After 2 more changes of hands, what was Fortress Bank Minnesota is today part of Old National Bank (Evansville, IN).
The chain, step by step
From the day it opened to the bank at the end of the chain today. Each step is one entry in the FDIC's record.
- 1903Houston State Bank opens in Houston, MN
- Jan 1, 1991renamed Houston Security Bank
- Oct 4, 1996renamed Fortress Bank
- Jun 16, 1997renamed Fortress Bank, National Association
- Aug 13, 2004renamed Fortress Bank Minnesota
- Jun 8, 2007MERGEDFortress Bank Minnesota merged into Eastwood Bank of Rochester, MN.FDIC certificate 12188 ends; its business continues under certificate 8208.
- Jan 23, 2015MERGEDEastwood Bank of Rochester, MN merged into Bremer Bank, National Association of Saint Paul, MN.FDIC certificate 8208 ends; its business continues under certificate 12923.
- May 1, 2025MERGEDBremer Bank, National Association of Saint Paul, MN merged into Old National Bank of Evansville, IN.FDIC certificate 12923 ends; its business continues under certificate 3832.
- TodayOPEN
Old National BankMain office Evansville, IN · FDIC certificate 3832 · 354 offices in 10 states on June 30, 2026Every Old National Bank office → Website on file with the FDIC: www.oldnational.com
If you still have something from Fortress Bank Minnesota
A lien that was never released
If a paid-off mortgage, home-equity line or car loan still shows Fortress Bank Minnesota as lienholder, start with Old National Bank. In a merger the surviving bank takes over the other bank's loans, so it is the bank to ask for a recordable lien release; if the loan was sold along the way, it can tell you to whom.
The FDIC says it cannot process lien releases for banks that merged or were acquired without government assistance, which is what the record shows here.
Record the release with the same county office that recorded the original mortgage or deed of trust.
An old account, passbook or CD
Ask Old National Bank to search for the account under the name Fortress Bank Minnesota. A passbook or certificate shows an account existed. It doesn't show the money is still there, and the OCC notes that federal rules require banks to keep most account records for five years.
Accounts nobody touches are eventually turned over to a state. The OCC puts the usual wait at three to five years with no activity, set by each state's law. Search the unclaimed-property program of the state of the owner's last known address on the bank's records, and any other state they lived in. It is free to search and to claim through a state's own site, and MissingMoney.com, an official site of the state administrators' association, searches most states at once.
A safe deposit box
Ask Old National Bank which branch now holds boxes from the Fortress Bank Minnesota office you used. The OCC says a box with no activity for three to five years (the period is set by state statute) is likely treated as dormant, and its contents may be turned over to the state's unclaimed-property program.
Box contents are not covered by FDIC insurance.
Not sure this is your bank?
Many banks shared a name. Match the city and the years above against your paperwork, or search again with the town.
Credit unions were never FDIC-insured and are not in this record; the NCUA credit union lookup covers those. Banks that closed before about 1970 are not in the FDIC's list either.
One caution: banks also sell single branches. If the office you used was sold to a different bank along the way, the account went with the branch, not with this chain. The office list below shows which bank each office reports under now.
This page is drawn from FDIC records and federal guidance. It is not legal advice, and BankBranches is not a bank or a government office. More detail: lien releases · old passbooks and CDs · safe deposit boxes · unclaimed money.
Where the guidance comes from ▾
Its offices in the FDIC deposit reports
2 offices filed under this charter in some year from 1994 on. 1 is still open as of June 30, 2026.
| Office | Now |
|---|---|
| 225 Lafayette StWinona, MN | OpenOld National Bank |
| 108 Cedar Street, EastHouston, MN | No longer reported |
Banks folded into Fortress Bank Minnesota
1 bank merged directly into this charter.
| Bank | Ended |
|---|---|
| Security State Bank of HoustonHouston, MN | Jan 1, 1991 |
Source: FDIC BankFind institution and history records, read Nov 15, 2026. The FDIC's list covers banks that ended in about 1970 or later. Look up certificate 12188 in the FDIC BankFind Suite to see the government's own entry. Corrections: me@byclaude.net.