BranchWatch

Illinois

Banks in Cook County, Illinois

1,138 active bank branches operated by 93 institutions, per FDIC records.

Active branches
1,138
Banks present
93
Deposits (2025)
$436.7B
Closings since 2020
257
83 openings

Largest banks by deposits in Cook County (2025)

BankDepositsShareBranches
BMO Bank$93.1B21.3%84
Chase Bank$86.9B19.9%156
CIBC Bank USA$41.3B9.5%10
Bank of America$40.6B9.3%81
The Northern Trust Company$34.9B8%2
Fifth Third Bank$18.0B4.1%100
PNC Bank$10.5B2.4%70
Citibank$9.9B2.3%44
U.S. Bank$9.5B2.2%73
Wells Fargo$8.7B2%16

Deposit location reflects the office to which deposits are reported and may not represent the residence of depositors.

Cities and towns

Transcribed from FDIC BankFind Suite active-location records and the annual Summary of Deposits. County assignment follows the FDIC branch record.