Wheaton Bank & Trust, National Association
Wheaton, Illinois, Dupage County
$4.8B in total assets, the 302nd largest of 4,309 US banks and 17th of 328 headquartered in Illinois.
- FDIC certificate
- 33803
- Established
- 1993
- Owned by
- Wintrust Financial Corp
- Primary regulator
- OCC
- Website
- www.wheatonbank.com
At a glance
Compared with 50 banks headquartered in Illinois with $1 billion to $10 billion in assets, as of June 30, 2026.
| Measure | This bank | Percentile | Peer range, middle 90% | Peer median |
|---|---|---|---|---|
| Total assets | $4.8B | 76% | $2.7B | |
| Loans | $3.2B | 74% | $2.0B | |
| Deposits | $4.1B | 76% | $2.3B | |
| Return on assets | 1.56% | 76% | 1.39% | |
| Net interest margin | 2.94% | 6% | 3.57% | |
| Efficiency ratio | 32.6% | 4% | 51.3% | |
| Equity to assets | 8.81% | 20% | 10.00% | |
| Loans to deposits | 78% | 20% | 87% |
Growth
Total assets grew 11.0% a year over the last 5 years and 13.9% a year over 10 years, without acquisitions.
Acquisitions
| Closed | Acquired bank | Assets at acquisition |
|---|---|---|
| Jul 2015 | Community Bank-Wheaton/Glen Ellyn Glen Ellyn, IL | $336M |
| Apr 2010 | Wheatland Bank Naperville, IL | $442M |
Where they operate
8 branches in 2 counties.
Largest markets by deposits
| County | Deposits | Market share | Rank |
|---|---|---|---|
| Dupage County, IL | $4.1B | 7.5% | 6 of 43 |
| Will County, IL | $41M | 0.2% | 28 of 34 |
Deposits by branch from the FDIC Summary of Deposits, June 2026. Rank among all banks with branches in that county.
Branch history since 2016
Net gain of 2 branches since 2016 (6 to 8, +33.3%). 2 opened, 0 acquired, 0 closed or sold.
| Period | What happened | Opened or acquired | Closed or sold | Net change | Branches at end |
|---|---|---|---|---|---|
| Start of 2016 | Starting point | 6 | |||
| 2017 | Opened Bolingbrook | 1 | 0 | +1 | 7 |
| 2022 | Opened Lombard | 1 | 0 | +1 | 8 |
Balance sheet and earnings
Loans by type
| Type | Share | This bank | Peers |
|---|---|---|---|
| Business (C&I) | 47% | 26% | |
| Consumer | 16% | 5% | |
| Commercial real estate | 13% | 28% | |
| 1-4 family residential | 9% | 14% | |
| Construction and land | 4% | 7% | |
| Multifamily | 3% | 9% | |
| Agricultural | 0% | 2% | |
| Farmland | 0% | 3% | |
| Other | 7% | 5% |
Deposits by type
| Type | Share | This bank | Peers |
|---|---|---|---|
| Other interest-bearing | 71% | 55% | |
| Noninterest-bearing | 17% | 21% | |
| Time deposits | 12% | 25% |
Brokered deposits are 9.9% of deposits (peers 7.9%).
Return on assets
Trailing four quarters, with the peer median.
Credit and capital
| This bank | Peer median | |
|---|---|---|
| Noncurrent loans | 0.52% | 0.50% |
| Net charge-offs, annualized | 0.17% | 0.07% |
| Reserves to loans | 0.51% | 1.13% |
| Leverage ratio | 9.10% | 10.08% |
Noncurrent loans exclude government-guaranteed portions.
Related banks
Similar size in Illinois
Largest competitors in Dupage County, IL
Figures as of June 30, 2026 from the bank's Call Report, FDIC structure and branch data, and the Federal Reserve. Short link: bankingstats.com/wheaton