Old Second National Bank: branch locations
Old Second National Bank is an FDIC-insured bank with 53 branches in 1 state in our list. Its main office address in the FDIC records is 37 S River St, Aurora, IL 60506.
Contact details
| Main office | 37 S River St, Aurora, IL 60506 |
|---|---|
| Official website | www.oldsecond.com |
| FDIC certificate | 3603 |
The website address is the one the bank reported to the FDIC. Phone numbers are not part of the FDIC data, so use the number on your card or the bank’s own website.
Where Old Second National Bank has branches
| State | Branches |
|---|---|
| Illinois | 53 |
Old Second National Bank has too many branches to list on one page. Pick a state above to see every bank there, including this one.
Source: FDIC BankFind Suite, retrieved 2026-09-20. This site is independent and is not affiliated with Old Second National Bank. Confirm branch details with the bank.
Frequently asked questions
How many branches does Old Second National Bank have?
Our list has 53 branches of Old Second National Bank, in Illinois (53). The number changes as branches open and close.
Where is Old Second National Bank headquartered?
The FDIC lists the main office at 37 S River St, Aurora, IL 60506.
Is Old Second National Bank FDIC-insured?
According to the FDIC BankFind data, Old Second National Bank is an active FDIC-insured institution (certificate number 3603). Confirm any bank you plan to use in the FDIC’s BankFind tool.