Bank Branches › Closed and merged banks › Maine › Casco Northern Bank, National Association
What happened to Casco Northern Bank, National Association?
Casco Northern Bank, National Association in Portland, ME (earlier called Northern National Bank) merged into Key Trust Company of Maine on Jun 13, 1995. That bank is now called KeyBank National Association (Cleveland, OH).
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.
- 1933Northern National Bank opens in Portland, ME
- Sep 1, 1983renamed Casco Northern Bank, National Association
- Jun 13, 1995MERGEDCasco Northern Bank, National Association merged into Key Trust Company of Maine.FDIC certificate 4276 ends; its business continues under certificate 26596.
- Today · FDIC names this bank as the final successor; its step-by-step record has a gap before itOPEN
KeyBank National AssociationMain office Cleveland, OH · FDIC certificate 17534 · 951 offices in 16 states on June 30, 2026Every KeyBank National Association office → Website on file with the FDIC: www.key.com
If you still have something from Casco Northern Bank, National Association
A lien that was never released
If a paid-off mortgage, home-equity line or car loan still shows Casco Northern Bank, National Association as lienholder, start with KeyBank National Association. 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 KeyBank National Association to search for the account under the name Casco Northern Bank, National Association. 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 KeyBank National Association which branch now holds boxes from the Casco Northern Bank, National Association 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
37 offices filed under this charter in some year from 1994 on. 7 are still open as of June 30, 2026.
| Office | Now |
|---|---|
| 1 Monument SqPortland, ME | OpenKeyBank National Association |
| 1237 Main StSanford, ME | OpenTD Bank, National Association |
| 1 Landing RdWindham, ME | OpenKeyBank National Association |
| 176 Main StBridgton, ME | OpenTD Bank, National Association |
| 254 Long Plains RdBuxton, ME | OpenPartners Bank of New England |
| 435 Main StDamariscotta, ME | OpenThe Camden National Bank |
| 12 Shapleigh RdKittery, ME | OpenKeyBank National Association |
| 141 Elm StreetCamden, ME | No longer reported |
| Leeman Highway and Floral StreetBath, ME | No longer reported |
| Memorial CircleAugusta, ME | No longer reported |
| 104 Main StreetWaterville, ME | No longer reported |
| 5 Parkway SBrewer, ME | No longer reported |
| 24 Springer DriveBangor, ME | No longer reported |
| 21 Main StreetBangor, ME | No longer reported |
| 53 Water StreetBangor, ME | No longer reported |
| 250 Maine Mall RdSouth Portland, ME | No longer reported |
| 1234 Shore RoadCape Elizabeth, ME | No longer reported |
| 1278 Roosevelt TrailRaymond, ME | No longer reported |
| 883 Forest AvenuePortland, ME | No longer reported |
| 256 U.S. Route 1Falmouth, ME | No longer reported |
| 145 Commercial StreetPortland, ME | No longer reported |
| U.S. Route 1Scarborough, ME | No longer reported |
| Westbrook CommonWestbrook, ME | No longer reported |
| 80 Main StreetGorham, ME | No longer reported |
| US Route 1Yarmouth, ME | No longer reported |
| 137 Maine StreetBrunswick, ME | No longer reported |
| Dry Mills RoadGray, ME | No longer reported |
| 175 Auburn StreetPortland, ME | No longer reported |
| One Monument SquarePortland, ME | No longer reported |
| 9 Market StreetSouth Portland, ME | No longer reported |
| 313 Elm StreetBiddeford, ME | No longer reported |
| 180 Main StreetSaco, ME | No longer reported |
| US Route 1, Webhanet PlaceKennebunk, ME | No longer reported |
| 1 Great Falls PlazaAuburn, ME | No longer reported |
| 35 Mount Auburn AvenueAuburn, ME | No longer reported |
| 882 Lisbon StreetLewiston, ME | No longer reported |
| 211 High StreetEllsworth, ME | No longer reported |
Banks folded into Casco Northern Bank, National Association
1 bank merged directly into this charter; counting the banks those had absorbed earlier, 2 charters end up inside it.
| Bank | Ended |
|---|---|
| Casco Bank & Trust CompanyPortland, ME | Sep 1, 1983 |
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 4276 in the FDIC BankFind Suite to see the government's own entry. Corrections: me@byclaude.net.