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Bank Branches › Closed and merged banks › Illinois › West Suburban Bank

FDIC certificate 18509 · Lombard, IL

What happened to West Suburban Bank?

West Suburban Bank in Lombard, IL merged into Old Second National Bank of Aurora, IL on Dec 1, 2021. Old Second National Bank is open today.

1962
opened
2021
merged away
1
name it used
1
step to today's bank

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.

  1. 1962
    West Suburban Bank opens in Lombard, IL
  2. Dec 1, 2021
    MERGEDWest Suburban Bank merged into Old Second National Bank of Aurora, IL.FDIC certificate 18509 ends; its business continues under certificate 3603.
  3. Today
    OPEN
    Old Second National BankMain office Aurora, IL · FDIC certificate 3603 · 57 offices in 1 state on June 30, 2026

    Every Old Second National Bank office →   Website on file with the FDIC: www.oldsecond.com

If you still have something from West Suburban Bank

A lien that was never released

If a paid-off mortgage, home-equity line or car loan still shows West Suburban Bank as lienholder, start with Old Second 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 Second National Bank to search for the account under the name West Suburban Bank. 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 Second National Bank which branch now holds boxes from the West Suburban Bank 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

50 offices filed under this charter in some year from 1994 on. 27 are still open as of June 30, 2026. Showing 40.

OfficeLast filed under itNow
8001 Cass AveDarien, IL2021OpenOld Second National Bank
2000 W Galena BlvdAurora, IL2021OpenOld Second National Bank
401 N Gary AveCarol Stream, IL2021OpenOld Second National Bank
355 W Army Trail RdBloomingdale, IL2021OpenOld Second National Bank
522 N Sugar Grove PkwySugar Grove, IL2021OpenOld Second National Bank
2800 Finley RdDowners Grove, IL2021OpenOld Second National Bank
1122 S Main StLombard, IL2021OpenOld Second National Bank
1657 Bloomingdale RdGlendale Heights, IL2021OpenOld Second National Bank
3000 E Main StSt Charles, IL2021OpenOld Second National Bank
335 N Eola RdAurora, IL2021OpenOld Second National Bank
1061 W Stearns RdBartlett, IL2021OpenOld Second National Bank
2020 Feldott LnNaperville, IL2021OpenOld Second National Bank
295 W Loop RdWheaton, IL2021OpenOld Second National Bank
1104 W Boughton RdBolingbrook, IL2021OpenOld Second National Bank
707 N Main StLombard, IL2021OpenOld Second National Bank
1380 W Army Trail RdCarol Stream, IL2021OpenOld Second National Bank
40 E Saint Charles RdVilla Park, IL2021OpenOld Second National Bank
Il-59Warrenville, IL2021OpenOld Second National Bank
505 N Weber RdRomeoville, IL2021OpenOld Second National Bank
672 E Boughton RdBolingbrook, IL2021OpenOld Second National Bank
1870 Stearns RdSouth Elgin, IL2021OpenOld Second National Bank
315 S Randall RdSt. Charles, IL2021OpenOld Second National Bank
1830 Douglas RdMontgaomery, IL2021OpenOld Second National Bank
17w754 22nd StOak Brook Terrace, IL2021OpenOld Second National Bank
701 Westmore Meyers Rd, # 711Lombard, IL2021OpenOld Second National Bank
717 S Meyers RdLombard, IL2021OpenOld Second National Bank
100 S Main StLombard, IL2021OpenOld Second National Bank
895 East Geneva RoadCarol Stream, IL2021No longer reported
1005 75th StDarien, IL2021No longer reported
5330 South Main StreetDowners Grove, IL2021No longer reported
2100 Finley RoadLombard, IL2021No longer reported
2400 South Finley RoadLombard, IL2021No longer reported
1296 E Chicago AveNaperville, IL2021No longer reported
6400 S Cass AveWestmont, IL2021No longer reported
221 S West StWheaton, IL2021No longer reported
1004 104th StreetNaperville, IL2021No longer reported
2830 Route 34Oswego, IL2021No longer reported
2000 W Galena BlvdAurora, IL2021No longer reported
101 N Lake StAurora, IL2021No longer reported
1311 Butterfield Rd, Suite 111Aurora, IL2021No longer reported

Banks folded into West Suburban Bank

4 banks merged directly into this charter.

BankEndedHow
West Suburban Bank of Downers Grove/LombardDowners Grove, ILMay 16, 1997merged
West Suburban Bank of DarienDarien, ILMay 16, 1997merged
West Suburban Bank of Carol Stream/Stratford SquareBloomingdale, ILMay 16, 1997merged
West Suburban Bank of Aurora, F.S.B.Aurora, ILMay 16, 1997merged

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 18509 in the FDIC BankFind Suite to see the government's own entry. Corrections: me@byclaude.net.