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Banks in Illinois

3,628 bank branches in 809 cities and 102 counties · Data as of 10/23/2026

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Bank branches in Illinois at a glance

  • Illinois has 3,628 bank branches, about 2.9 for every 10,000 residents.
  • Per person, that is 25% above the national rate (2.3 per 10,000).
  • It ranks 5th among the states by number of bank branches.
  • The largest group is Full-Service Branch (82%), ahead of Main Office and Limited-Service Facility.
  • Chicago (487), Springfield (51) and Naperville (43) have the most, 16% of the state total combined.

Banks headquartered in Illinois, with their assets, deposits and earnings.

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All bank branches in Illinois

3,629 listed, A to Z · Page 1 of 121

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Frequently asked questions

How many bank branches are in Illinois?
There are 3,628 bank branches in Illinois in our data as of 10/23/2026.
Which Illinois cities have the most bank branches?
Chicago (487), Springfield (51), Naperville (43), Rockford (37), Aurora (33).