Branch Presence
Banks with Branches in Naperville, IL
JPMorgan Chase Bank, N.A. is the biggest bank in Naperville, IL, with $2.33B in deposits at its Naperville branches, 23.6% of the city's total as of the June 30, 2026 FDIC Summary of Deposits.
19 banks operate 43 branches in Naperville, IL, ranked below by local branch count from the FDIC Summary of Deposits. This counts every bank with a branch here, not only banks headquartered locally.
Deposit share is each bank's share of the $9.87B held in Naperville, IL, as of the June 30, 2026 FDIC Summary of Deposits, ranked by deposits (#1 is largest). Banks that book deposits at a headquarters branch can show a share that exceeds their local customer base.
| Bank | Branches in Naperville | Local deposits | Deposit share |
|---|---|---|---|
| JPMorgan Chase Bank, N.A. | 5 | $2.33B | 23.6% (#1) |
| BMO Bank N.A. | 4 | $1.64B | 16.6% (#2) |
| PNC Bank, N.A. | 4 | $746.3M | 7.6% (#4) |
| Citibank, N.A. | 3 | $1.58B | 16.0% (#3) |
| U.S. Bank N.A. | 3 | $708.7M | 7.2% (#5) |
| Fifth Third Bank, N.A. | 3 | $622.3M | 6.3% (#6) |
| Wheaton Bank & Trust Company, N.A. | 3 | $564.7M | 5.7% (#7) |
| Bank of America, N.A. | 3 | $532.9M | 5.4% (#8) |
| The Huntington National Bank | 3 | $265.7M | 2.7% (#9) |
| Busey Bank | 2 | $218.9M | 2.2% (#10) |
| First American Bank | 2 | $65.1M | 0.7% (#15) |
| Old National Bank | 1 | $151.7M | 1.5% (#11) |
| Cornerstone National Bank & Trust Company | 1 | $143.9M | 1.5% (#12) |
| Hanmi Bank | 1 | $76.2M | 0.8% (#13) |
| Old Second National Bank | 1 | $71.9M | 0.7% (#14) |
| Republic Bank of Chicago | 1 | $64.3M | 0.7% (#16) |
| Wells Fargo Bank, N.A. | 1 | $41.3M | 0.4% (#17) |
| Lakeside Bank | 1 | $34.0M | 0.3% (#18) |
| First Secure Community Bank | 1 | $16.1M | 0.2% (#19) |
County deposit market: Dupage, IL
The $54.96B held across 43 FDIC-insured banks in this county, as of the June 30, 2026 FDIC Summary of Deposits. The 10 largest are shown; see every bank in the Dupage, IL market with its change from a year earlier. Banks only: credit unions are not in the Summary of Deposits.
| Rank | Bank | Deposit share | Deposits | Branches |
|---|---|---|---|---|
| 1 | JPMorgan Chase Bank, N.A. | 22.0% | $12.09B | 28 |
| 2 | PNC Bank, N.A. | 11.0% | $6.03B | 14 |
| 3 | BMO Bank N.A. | 8.7% | $4.80B | 24 |
| 4 | Hinsdale Bank & Trust Company, N.A. | 7.8% | $4.30B | 8 |
| 5 | Fifth Third Bank, N.A. | 7.8% | $4.27B | 20 |
| 6 | Wheaton Bank & Trust Company, N.A. | 7.5% | $4.10B | 7 |
| 7 | Citibank, N.A. | 4.7% | $2.59B | 9 |
| 8 | U.S. Bank N.A. | 4.7% | $2.59B | 19 |
| 9 | Bank of America, N.A. | 4.4% | $2.44B | 12 |
| 10 | Old Second National Bank | 3.3% | $1.80B | 22 |
Metro area deposit market: Chicago-Naperville-Elgin, IL-IN-WI
The $632.03B held across 150 FDIC-insured banks in this metro area, as of the June 30, 2026 FDIC Summary of Deposits. The 10 largest are shown; see every bank in the Chicago-Naperville-Elgin, IL-IN-WI market with its change from a year earlier. Banks only: credit unions are not in the Summary of Deposits.
| Rank | Bank | Deposit share | Deposits | Branches |
|---|---|---|---|---|
| 1 | JPMorgan Chase Bank, N.A. | 20.2% | $127.54B | 266 |
| 2 | BMO Bank N.A. | 17.0% | $107.34B | 189 |
| 3 | CIBC Bank USA | 7.8% | $49.02B | 5 |
| 4 | Bank of America, N.A. | 6.5% | $41.29B | 118 |
| 5 | The Northern Trust Company | 6.5% | $41.27B | 5 |
| 6 | Fifth Third Bank, N.A. | 4.4% | $27.75B | 169 |
| 7 | PNC Bank, N.A. | 3.1% | $19.48B | 119 |
| 8 | Old National Bank | 3.0% | $18.86B | 89 |
| 9 | U.S. Bank N.A. | 2.7% | $16.86B | 118 |
| 10 | Citibank, N.A. | 2.3% | $14.23B | 57 |
Banks in Naperville: common questions
What is the biggest bank in Naperville, IL?
JPMorgan Chase Bank, N.A. is the biggest bank in Naperville, IL, with $2.33B in deposits at its Naperville branches, 23.6% of the city's total as of the June 30, 2026 FDIC Summary of Deposits.
How many banks are in Naperville, IL?
19 FDIC-insured banks operate 43 branches in Naperville, IL as of the June 30, 2026 FDIC Summary of Deposits. This counts every bank with a branch in the city, not only banks headquartered there. Credit unions are not in the Summary of Deposits.
What are the largest banks in Naperville, IL?
Ranked by deposits held in Naperville branches as of the June 30, 2026 FDIC Summary of Deposits: 1. JPMorgan Chase Bank, N.A. (23.6%); 2. BMO Bank N.A. (16.6%); 3. Citibank, N.A. (16.0%); 4. PNC Bank, N.A. (7.6%); 5. U.S. Bank N.A. (7.2%). The share is each bank's part of all deposits in the city.
Largest banks in Illinois
For the state as a whole, see the largest banks in Illinois, ranked by total assets and by deposits in Illinois branches, or every bank in the Illinois bank directory.
Banks in other Illinois cities:
About this data
Branch counts and local deposits come from the FDIC Summary of Deposits, the annual June 30 survey of branch-office deposits for every FDIC-insured bank. Click any bank to see its full regulatory profile and complete branch network. Looking for banks headquartered here instead? See the US bank directory.