Banks in DuPage County, Illinois

FDIC-insured institutions in DuPage County held $55.0 billion in deposits as of June 30, 2026, according to the FDIC.

44 FDIC-insured institutions held $55.0 billion in deposits in 250 offices in DuPage County at June 30, 2026; JPMorgan Chase Bank, National Association held the most, 22.0% of the county's.

DuPage County, June 30, 2026

$55.0 billion
Deposits in the county: $54,989,451,000; At June 30, 2026, against $53.2 billion a year before, each year's own dollars.; 44
Institutions with deposits: FDIC-insured banks and savings institutions with an office here that reported deposits.; 250
Offices: Every office the survey lists here, against 251 in 2025.; 22.0%
The largest share: JPMorgan Chase Bank, National Association, with $12.1 billion in 28 offices.

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FDIC-insured institutions with an office in DuPage County, Illinois, by deposits there at June 30, 2026, each with its share of the county's $55.0 billion
Rank	Institution	Offices	Deposits	Share	Deposits, 2025
1	JPMorgan Chase Bank, National Association	28	$12.1 billion	22.0%	$11.7 billion
2	PNC Bank, National Association	14	$6.0 billion	11.0%	$5.6 billion
3	BMO Bank National Association	24	$4.8 billion	8.7%	$5.3 billion
4	Hinsdale Bank & Trust Company, National Association	8	$4.3 billion	7.8%	$3.4 billion
5	Fifth Third Bank, National Association	20	$4.3 billion	7.8%	$3.6 billion
6	Wheaton Bank & Trust, National Association	7	$4.1 billion	7.4%	$3.4 billion
7	Citibank, National Association	9	$2.6 billion	4.7%	$2.6 billion
8	U.S. Bank National Association	19	$2.6 billion	4.7%	$2.5 billion
9	Bank of America, National Association	12	$2.4 billion	4.4%	$2.4 billion
10	Old Second National Bank	22	$1.8 billion	3.3%	$1.6 billion
11	Schaumburg Bank & Trust Company, National Association	4	$1.3 billion	2.3%	$1.5 billion
12	The Huntington National Bank	18	$1.2 billion	2.2%	$1.1 billion
13	Republic Bank of Chicago	5	$1.0 billion	1.9%	$1.1 billion
14	Old National Bank	4	$777.5 million	1.4%	$415.4 million
15	Itasca Bank & Trust Co.	2	$691.7 million	1.3%	$667.4 million
16	The Northern Trust Company	1	$539.6 million	1.0%	$547.7 million
17	Busey Bank	4	$446.2 million	0.8%	$401.9 million
18	Lisle Savings Bank	4	$383.3 million	0.7%	$384.5 million
19	First American Bank	7	$378.7 million	0.7%	$366.6 million
20	Grand Ridge National Bank	1	$338.9 million	0.6%	$324.8 million
21	Lakeside Bank	3	$289.0 million	0.5%	$241.9 million
22	Providence Bank & Trust	3	$260.8 million	0.5%	$272.0 million
23	American Commercial Bank & Trust, National Association	1	$258.5 million	0.5%	$251.2 million
24	First Eagle Bank	1	$245.0 million	0.4%	$244.0 million
25	Cathay Bank	1	$193.4 million	0.4%	$179.8 million
26	First Financial Bank	3	$179.5 million	0.3%	No office
27	Community Bank of Elmhurst	2	$176.9 million	0.3%	$176.8 million
28	Wells Fargo Bank, National Association	2	$158.9 million	0.3%	$109.2 million
29	Byline Bank	2	$152.7 million	0.3%	$186.9 million
30	Cornerstone National Bank & Trust Company	1	$143.9 million	0.3%	$139.6 million
31	FNBC Bank & Trust	1	$121.4 million	0.2%	$116.1 million
32	Amalgamated Bank of Chicago	1	$120.7 million	0.2%	$127.9 million
33	Millennium Bank	1	$111.4 million	0.2%	$86.0 million
34	Parkway Bank and Trust Company	4	$99.3 million	0.2%	$94.5 million
35	First Nations Bank	1	$78.6 million	0.1%	$78.8 million
36	Hanmi Bank	1	$76.2 million	0.1%	$86.6 million
37	Pan American Bank & Trust	2	$67.1 million	0.1%	$61.0 million
38	Associated Bank, National Association	1	$66.2 million	0.1%	$50.7 million
39	Peoples Bank	1	$54.4 million	0.1%	$52.1 million
40	TrustBank	1	$48.3 million	0.1%	$39.0 million
41	CIBM Bank	1	$25.3 million	< 0.1%	$27.8 million
42	First Secure Community Bank	1	$16.1 million	< 0.1%	$15.6 million
43	Woodforest National Bank	1	$3.0 million	< 0.1%	$2.5 million
44	BMO Harris Central National Association	1	$1.0 million	< 0.1%	$1.0 million

An institution with no office in the county in 2025 shows none for that year; a name is the survey’s for 2026, and one without a link has no page because it did not file a Call Report for the newest quarter.

Sources

FDIC Summary of Deposits — every office's deposits at June 30, 1994 to the newest survey — Federal Deposit Insurance Corporation · Public domain — U.S. Government work · retrieved September 27, 2026

Compiled automatically from FDIC Summary of Deposits — every office's deposits at June 30, 1994 to the newest survey by a checked SQL query · Editor: Kian O'Connor · How this site is built

Data retrieved September 30, 2026

DuPage County, June 30, 2026

Each institution’s share of the county’s deposits

Sources