Bank Branches › Closed and merged banks › Illinois › Castle Bank, National Association
What happened to Castle Bank, National Association?
Castle Bank, National Association in Dekalb, IL (earlier called First National Bank in De Kalb) merged into First National Bank of Omaha of Omaha, NE on Sep 29, 2010. First National Bank of Omaha is open today.
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.
- 1859First National Bank in De Kalb opens in Dekalb, IL
- Jun 24, 2000renamed Castle Bank, National Association
- Sep 29, 2010MERGEDCastle Bank, National Association merged into First National Bank of Omaha of Omaha, NE.FDIC certificate 13908 ends; its business continues under certificate 5452.
- TodayOPEN
First National Bank of OmahaMain office Omaha, NE · FDIC certificate 5452 · 138 offices in 9 states on June 30, 2026Every First National Bank of Omaha office → Website on file with the FDIC: www.fnbo.com
If you still have something from Castle Bank, National Association
A lien that was never released
If a paid-off mortgage, home-equity line or car loan still shows Castle Bank, National Association as lienholder, start with First National Bank of Omaha. 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 First National Bank of Omaha to search for the account under the name Castle 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 First National Bank of Omaha which branch now holds boxes from the Castle 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
23 offices filed under this charter in some year from 1994 on. 19 are still open as of June 30, 2026.
| Office | Now |
|---|---|
| 141 W Lincoln HwyDekalb, IL | OpenFirst National Bank of Omaha |
| 109 W Veterans PkwyYorkville, IL | OpenFirst National Bank of Omaha |
| 36 E Galena BlvdSugar Grove, IL | OpenFirst National Bank of Omaha |
| 100 W Church StSandwich, IL | OpenFirst National Bank of Omaha |
| 677 E Grant HwyMarengo, IL | OpenFirst National Bank of Omaha |
| 11700 Route 47Huntley, IL | OpenFirst National Bank of Omaha |
| 100 Greenwood Acres DrDekalb, IL | OpenFirst National Bank of Omaha |
| 1725 S State StBelvidere, IL | OpenFirst National Bank of Omaha |
| 511 W State StSycamore, IL | OpenFirst National Bank of Omaha |
| 355 S Division StHarvard, IL | OpenFirst National Bank of Omaha |
| 2100 W Algonquin RdLake In The Hills, IL | OpenFirst National Bank of Omaha |
| 4520 W Algonquin RdLake In The Hills, IL | OpenFirst National Bank of Omaha |
| 6601 Route 34Oswego, IL | OpenFirst National Bank of Omaha |
| 6601 Route 34Oswego, IL | OpenFirst National Bank of Omaha |
| 109 W Veterans PkwyYorkville, IL | OpenFirst National Bank of Omaha |
| 141 W Lincoln HwyDekalb, IL | OpenFirst National Bank of Omaha |
| 511 W State StSycamore, IL | OpenFirst National Bank of Omaha |
| 355 S Division StHarvard, IL | OpenFirst National Bank of Omaha |
| 36 E Galena BlvdSugar Grove, IL | OpenFirst National Bank of Omaha |
| 505 West Route 34Plano, IL | No longer reported |
| 1265 South Route 14Harvard, IL | No longer reported |
| 1007 North First StreetDe Kalb, IL | No longer reported |
| 2022 South Route 31, Unit FMchenry, IL | No longer reported |
Banks folded into Castle Bank, National Association
4 banks merged directly into this charter; counting the banks those had absorbed earlier, 5 charters end up inside it.
| Bank | Ended |
|---|---|
| The First National Bank of MarengoMarengo, IL | Oct 1, 2007 |
| Castle Bank National AssociationSandwich, IL | Jun 24, 2000 |
| Castle Bank Harvard, National AssociationHarvard, IL | Jun 24, 2000 |
| Colonial Bank of SycamoreSycamore, IL | Dec 31, 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 13908 in the FDIC BankFind Suite to see the government's own entry. Corrections: me@byclaude.net.