Citibank
1 detailed location
Local banking directory
Search detailed locations Banks and Bank Branches in Oak Brook, Illinois
The FDIC reported 8 deposit-reporting offices from 8 institutions in Oak Brook as of June 30, 2025. Bankular currently provides 8 detailed location pages with addresses, maps and directions.
FDIC-reported offices8
Institutions reporting8
Detailed location pages8
Reported branch deposits$3.51B
SOD reporting dateJune 30, 2025
Market analysis
What the deposit data shows
Largest institutionRepublic Bank of Chicago23.69% of deposits
Top three share63.34%
Deposit HHI1,789Moderate concentration
Current detailed pages8Matches the June 2025 SOD office count
Republic Bank of Chicago held 23.69% of reported branch deposits in Oak Brook. The three largest institutions together held 63.34%. Bankular places the resulting HHI of 1,789 in its moderate concentration descriptive band.
Branch map
Detailed bank locations in Oak Brook
Select a marker to open the detailed location page.
Detailed directory
Institutions with validated location pages
Fifth Third Bank
1 detailed location
JPMorgan Chase Bank
1 detailed location
Millennium Bank
1 detailed location
Old Second National Bank
1 detailed location
Pan American Bank & Trust
1 detailed location
Providence Bank & Trust
1 detailed location
Republic Bank of Chicago
1 detailed location
Location pages
Detailed bank locations in Oak Brook
Citibank
1 detailed locationFifth Third Bank
1 detailed locationJPMorgan Chase Bank
1 detailed locationMillennium Bank
1 detailed locationOld Second National Bank
1 detailed locationPan American Bank & Trust
1 detailed locationProvidence Bank & Trust
1 detailed locationRepublic Bank of Chicago
1 detailed locationLocal deposit market
Reported offices, deposits and market share
| Institution | Reported offices | Deposits | Share |
|---|---|---|---|
| Republic Bank of Chicago | 1 | $832.1M | 23.69% |
| Evergreen Bank Group | 1 | $707.5M | 20.14% |
| JPMorgan Chase Bank | 1 | $685.4M | 19.51% |
| CIBC Bank USA | 1 | $588.0M | 16.74% |
| Citibank | 1 | $348.0M | 9.91% |
| Fifth Third Bank | 1 | $265.7M | 7.57% |
| Millennium Bank | 1 | $86.0M | 2.45% |
| Providence Bank & Trust | 1 | $0 | 0.00% |