Bank Branches › Closed and merged banks › Montana › Security Bank, FSB
What happened to Security Bank, FSB?
Security Bank, FSB in Billings, MT (earlier called Security Federal Savings and Loan Association and 1 other name) merged into Western Federal Savings Bank of Montana of Missoula, MT on Feb 28, 1997. After 2 more changes of hands, what was Security Bank, FSB is today part of Glacier Bank (Kalispell, MT).
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.
- 1919Security Federal Savings and Loan Association opens in Billings, MT
- Dec 31, 1986renamed Security Federal Savings Bank
- Jan 1, 1994renamed Security Bank, FSB
- Feb 28, 1997MERGEDSecurity Bank, FSB merged into Western Federal Savings Bank of Montana of Missoula, MT.FDIC certificate 27973 ends; its business continues under certificate 28280.
- May 17, 2001MERGEDWestern Federal Savings Bank of Montana (by then renamed Western Security Bank) of Missoula, MT merged into Western Security Bank of Billings, MT.FDIC certificate 28280 ends; its business continues under certificate 57248.
- Apr 30, 2012MERGEDWestern Security Bank of Billings, MT merged into Glacier Bank of Kalispell, MT.FDIC certificate 57248 ends; its business continues under certificate 30788.
- TodayOPEN
Glacier BankMain office Kalispell, MT · FDIC certificate 30788 · 252 offices in 9 states on June 30, 2026Every Glacier Bank office → Website on file with the FDIC: www.glacierbank.com
If you still have something from Security Bank, FSB
A lien that was never released
If a paid-off mortgage, home-equity line or car loan still shows Security Bank, FSB as lienholder, start with Glacier 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 Glacier Bank to search for the account under the name Security Bank, FSB. 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 Glacier Bank which branch now holds boxes from the Security Bank, FSB 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
16 offices filed under this charter in some year from 1994 on. 2 are still open as of June 30, 2026.
| Office | Now |
|---|---|
| 2401 Grand AveBillings, MT | OpenGlacier Bank |
| 1546 Main StBillings, MT | OpenGlacier Bank |
| 19 Montana AvenueLaurel, MT | No longer reported |
| 324 Third Ave.Havre, MT | No longer reported |
| 125 Fourth St. S.Glasgow, MT | No longer reported |
| 102 N. MainPlentywood, MT | No longer reported |
| 2901 West MainBozeman, MT | No longer reported |
| 1880 Harrison AveButte, MT | No longer reported |
| 307 E Park StAnaconda, MT | No longer reported |
| 219 North 26th Ave.Billings, MT | No longer reported |
| 405 Main St.Kalispell, MT | No longer reported |
| 401 W MainLewistown, MT | No longer reported |
| 135 S. Second E.Malta, MT | No longer reported |
| 2350 S. ReserveMissoula, MT | No longer reported |
| 329 W. BroadwayMissoula, MT | No longer reported |
| 221 Second St. N.W.Sidney, MT | No longer reported |
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 27973 in the FDIC BankFind Suite to see the government's own entry. Corrections: me@byclaude.net.