Wintrust Bank, National Association
Chicago, Illinois, Cook County
$9.6B in total assets, the 173rd largest of 4,309 US banks and 6th of 328 headquartered in Illinois.
- FDIC certificate
- 33935
- Established
- 1994
- Owned by
- Wintrust Financial Corp
- Primary regulator
- OCC
- Website
- www.wintrustbank.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 | $9.6B | 98% | $2.7B | |
| Loans | $8.0B | 98% | $2.0B | |
| Deposits | $8.3B | 98% | $2.3B | |
| Return on assets | 1.98% | 96% | 1.39% | |
| Net interest margin | 3.93% | 67% | 3.53% | |
| Efficiency ratio | 45.3% | 24% | 51.3% | |
| Equity to assets | 11.57% | 82% | 9.97% | |
| Loans to deposits | 96% | 88% | 86% |
Growth
Total assets grew 2.0% a year over the last 5 years and 9.3% a year over 10 years, including 2 acquisitions in the last 10 years.
Acquisitions
| Closed | Acquired bank | Assets at acquisition |
|---|---|---|
| May 2019 | Oak Bank Chicago, IL | $201M |
| Aug 2018 | Delaware Place Bank Chicago, IL | $247M |
| Jul 2015 | North Bank Chicago, IL | $112M |
| Oct 2013 | Diamond Bank, FSB Schaumburg, IL | $167M |
Where they operate
37 branches in 1 county.
Largest markets by deposits
| County | Deposits | Market share | Rank |
|---|---|---|---|
| Cook County, IL | $8.3B | 1.8% | 11 of 90 |
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 15 branches since 2016 (22 to 37, +68.2%). 14 opened, 2 acquired, 1 closed or sold.
| Period | What happened | Opened or acquired | Closed or sold | Net change | Branches at end |
|---|---|---|---|---|---|
| Start of 2016 | Starting point | 22 | |||
| 2016 | Opened Chicago | 1 | 0 | +1 | 23 |
| 2017 | Opened 3 in Illinois | 3 | 0 | +3 | 26 |
| 2018 | Acquired Delaware Place BankOpened 3 in Illinois | 4 | 0 | +4 | 30 |
| 2019 | Acquired Oak BankOpened 3 in Illinois | 4 | 0 | +4 | 34 |
| 2021 | Opened Chicago | 2 | 0 | +2 | 36 |
| 2022 | Closed Chicago | 0 | 1 | −1 | 35 |
| 2024 | Opened Chicago | 1 | 0 | +1 | 36 |
| 2025 | Opened Chicago | 1 | 0 | +1 | 37 |
Balance sheet and earnings
Loans by type
| Type | Share | This bank | Peers |
|---|---|---|---|
| Business (C&I) | 37% | 26% | |
| Commercial real estate | 19% | 28% | |
| 1-4 family residential | 11% | 14% | |
| Construction and land | 8% | 7% | |
| Multifamily | 8% | 9% | |
| Consumer | 7% | 6% | |
| Agricultural | 0% | 2% | |
| Farmland | 0% | 3% | |
| Other | 8% | 5% |
Deposits by type
| Type | Share | This bank | Peers |
|---|---|---|---|
| Other interest-bearing | 49% | 55% | |
| Noninterest-bearing | 28% | 21% | |
| Time deposits | 23% | 24% |
Brokered deposits are 2.2% of deposits (peers 8.0%).
Return on assets
Trailing four quarters, with the peer median.
Credit and capital
| This bank | Peer median | |
|---|---|---|
| Noncurrent loans | 0.35% | 0.52% |
| Net charge-offs, annualized | 0.24% | 0.07% |
| Reserves to loans | 0.97% | 1.13% |
| Leverage ratio | 11.41% | 10.08% |
Noncurrent loans exclude government-guaranteed portions.
Related banks
Similar size in Illinois
Largest competitors in Cook 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/wintrust