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Bank Branches › Closed and merged banks › Illinois › First Midwest Bank/Lake County

FDIC certificate 19503 · Mundelein, IL

What happened to First Midwest Bank/Lake County?

First Midwest Bank/Lake County in Mundelein, IL (earlier called Bank of Mundelein) merged into First Midwest Bank, National Association of Waukegan, IL on Sep 19, 1988. After 3 more changes of hands, what was First Midwest Bank/Lake County is today part of Old National Bank (Evansville, IN).

1965
opened
1988
merged away
2
names it used
4
steps 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. 1965
    Bank of Mundelein opens in Mundelein, IL
  2. Jun 29, 1987
    renamed First Midwest Bank/Lake County
  3. Sep 19, 1988
    MERGEDFirst Midwest Bank/Lake County merged into First Midwest Bank, National Association of Waukegan, IL.FDIC certificate 19503 ends; its business continues under certificate 5751.
  4. Jun 15, 1990
    MERGEDFirst Midwest Bank, National Association of Waukegan, IL merged into First Midwest Bank, National Association of Waukegan, IL.FDIC certificate 5751 ends; its business continues under certificate 21916.
  5. May 18, 1995
    MERGEDFirst Midwest Bank, National Association of Waukegan, IL merged into First Midwest Bank, National Association of Chicago, IL.FDIC certificate 21916 ends; its business continues under certificate 3709.
  6. Feb 16, 2022
    MERGEDFirst Midwest Bank, National Association (by then renamed First Midwest Bank) of Chicago, IL merged into Old National Bank of Evansville, IN.FDIC certificate 3709 ends; its business continues under certificate 3832.
  7. Today
    OPEN
    Old National BankMain office Evansville, IN · FDIC certificate 3832 · 354 offices in 10 states on June 30, 2026

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

If you still have something from First Midwest Bank/Lake County

A lien that was never released

If a paid-off mortgage, home-equity line or car loan still shows First Midwest Bank/Lake County 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 First Midwest Bank/Lake County. 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 First Midwest Bank/Lake County 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.

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 ▾

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 19503 in the FDIC BankFind Suite to see the government's own entry. Corrections: me@byclaude.net.