RANKING ·
Highest net interest margin in Connecticut
27 of 28 banks in Connecticut that filed for the quarter ended June 30, 2026 are ranked. At least $100 million in total assets. Institutions with equal values share a rank. Source: FDIC quarterly financial data.
| Rank | Institution | Headquarters | Net interest margin | Total assets |
|---|---|---|---|---|
| 1 | Dr Bank | Darien, CT | 5.51% | $913 million |
| 2 | Jewett City Savings Bank | Jewett City, CT | 4.63% | $494 million |
| 3 | Connecticut Community Bank N.A. | Norwalk, CT | 4.47% | $526 million |
| 4 | Ion Bank | Naugatuck, CT | 4.30% | $2.8 billion |
| 5 | Chelsea Groton Bank | Groton, CT | 3.88% | $1.8 billion |
| 6 | Essex Bank | Essex, CT | 3.78% | $537 million |
| 7 | Bankwell Bank | New Canaan, CT | 3.73% | $3.5 billion |
| 8 | Milford Bank the | Milford, CT | 3.71% | $652 million |
| 9 | Fairfield County Bank | Ridgefield, CT | 3.69% | $1.9 billion |
| 10 | Windsor Federal Bank | Windsor, CT | 3.67% | $895 million |
| 11 | Thomaston Savings Bank | Thomaston, CT | 3.58% | $1.9 billion |
| 12 | Ives Bank | Danbury, CT | 3.51% | $1.7 billion |
| 13 | Ascend Bank | Guilford, CT | 3.50% | $1.5 billion |
| 14 | Liberty Bank | Middletown, CT | 3.50% | $9.4 billion |
| 15 | Newtown Savings Bank | Newtown, CT | 3.38% | $1.9 billion |
| 16 | Dime Bank | Norwich, CT | 3.37% | $1.2 billion |
| 17 | New Haven Bank | New Haven, CT | 3.31% | $200 million |
| 18 | Webster Bank N.A. | Stamford, CT | 3.29% | $85.9 billion |
| 19 | The Torrington Savings Bank | Torrington, CT | 3.28% | $1.0 billion |
| 20 | Patriot Bank N.A. | Stamford, CT | 3.26% | $1.3 billion |
| 21 | Northwest Community Bank | Winsted, CT | 3.20% | $1.3 billion |
| 22 | Union Savings Bank | Danbury, CT | 3.17% | $3.3 billion |
| 23 | The National Iron Bank | Salisbury, CT | 3.10% | $318 million |
| 24 | The First Bank of Greenwich | Cos Cob, CT | 3.06% | $812 million |
| 25 | First County Bank | Stamford, CT | 2.60% | $2.4 billion |
| 26 | Stafford Savings Bank | Stafford Springs, CT | 2.38% | $507 million |
| 27 | Fieldpoint Private Bank & Trust | Greenwich, CT | 2.20% | $867 million |
Rankings sort one published measure; they are not an overall judgment of any institution. Methodology · All rankings