Banks in Oak Brook, IL
Branches open
8
Banks present
8
Deposits (2026)
$3.3B
Closings on record
5
3 openings
Banks by deposits in Oak Brook (2026)
| Bank | Deposits | Share | Branches |
|---|---|---|---|
| Fifth Third Bank | $1.1B | 34.1% | 1 |
| Republic Bank of Chicago | $801M | 24.6% | 1 |
| Chase Bank | $689M | 21.2% | 1 |
| Citibank | $294M | 9% | 1 |
| Old Second National Bank | $241M | 7.4% | 1 |
| Millennium Bank | $111M | 3.4% | 1 |
| Pan American Bank & Trust | $10M | 0.3% | 1 |
| Providence Bank & Trust | $0K | 0% | 1 |
All branches
- Fifth Third Bank — 1400 16th St$1.1B
- Republic Bank of Chicago — 2221 Camden Ct$801M
- Chase Bank — 2122 W 22nd St$689M
- Citibank — 1900 Spring Rd$294M
- Old Second National Bank — 1515 W 22nd St Ste 100w$241M
- Millennium Bank — 3824 York Road$111M
- Pan American Bank & Trust — 1110 Jorie Blvd$10M
- Providence Bank & Trust — 2001 York Rd$0K
Closings
- CIBC Bank USA — Oak Brook, ILbank exits city1110 JORIE BLVD · closed August 15, 2025
- PNC Bank — Oak Brook, ILbank exits city2021 SPRING RD · closed March 21, 2025
- Byline Bank — Oak Brook, ILbank exits city2805 BUTTERFIELD RD · closed April 1, 2024
- Beal Bank — Oak Brook, ILbank exits city3041 BUTTERFIELD ROAD SUITE 112 · closed December 3, 2021
- Hinsdale Bank & Trust Company — Oak Brook, ILbank exits city3824 YORK ROAD · closed April 30, 2021
Transcribed from FDIC BankFind Suite active-location records, the annual Summary of Deposits and structure-change records. Deposit figures reflect the office to which deposits are reported and may not represent where depositors live.