DuPage County, Illinois, a core county of the Chicago-Naperville, IL-IN-WI market, holds $53.2B in deposits across 45 insured institutions and 250 branches. JPMorgan Chase Bank, National Association is the largest deposit holder at 22.0% share. The top three banks hold 43% of deposits, which places the county in the Fragmented band. Deposits have grown 10.0% since 2020 while the branch count fell by 15.3%. It produces $101.7B of output, ranking #46 of the 1,523 ranked counties by economic output.
Ranks show where the county stands among the 1,523 ranked counties (those within a Combined or Metropolitan Statistical Area that have a branch). They describe relative position, not a rating of market quality or suitability.
Deposit trend
Branches: 295 in 2020 to 250 in 2025. Institutions: 50 to 45. Top-three share: 41% to 43%.
Institutions by deposits
The 45 insured institutions with a branch presence in this county, per the FDIC Summary of Deposits, June 30, 2025. Five-year change compares the same institution’s county deposits in 2020 and 2025. Institutions are tracked by FDIC certificate number, and where an institution acquired another bank, the acquired bank’s prior deposits are folded into the baseline so the change reflects the combined, continuing franchise rather than reading as new. “No 2020 presence” means neither the institution nor a bank it later absorbed reported deposits in this county that year. Deposit figures are nominal and are not adjusted for inflation.
Part of the Chicago-Naperville market
DuPage County is one of 19 counties that make up the Chicago-Naperville, IL-IN-WI market, a Combined Statistical Area (ranked #5 of 293 U.S. markets by economic output). It produces 13.5% of the market’s output and holds 8.6% of its deposits.
| Measure | DuPage County | Share of parent market |
|---|---|---|
| 2024 GDP | $101.7B | 13.5% |
| Deposits | $53.2B | 8.6% |
| Population | 934,298 | 9.4% |
View the full Chicago-Naperville market profile →
Recruiting in DuPage County
Deposits are spread across a competitive field of institutions, so the bankers worth recruiting are dispersed across more of them. Who holds the deposits, and how contested the market is, shapes both the runway for growth and the competition you would be recruiting against. We recruit commercial relationship managers, banking teams, and market leaders for banks building in markets like DuPage County.
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