RANKING ·
Largest net interest margin improvement in New Hampshire
16 of 17 banks in New Hampshire that filed for the quarter ended June 30, 2026 are ranked. At least $100 million in total assets and a comparable quarter a year earlier. Institutions with equal values share a rank. Source: FDIC quarterly financial data.
| Rank | Institution | Headquarters | Net interest margin, change over 12 months | Total assets |
|---|---|---|---|---|
| 1 | Franklin Savings Bank | Franklin, NH | +49 bps | $931 million |
| 2 | Salem Co-Operative Bank | Salem, NH | +44 bps | $580 million |
| 3 | Piscataqua Savings Bank | Portsmouth, NH | +43 bps | $373 million |
| 4 | Merrimack County Savings Bank | Concord, NH | +42 bps | $1.4 billion |
| 5 | Meredith Village Savings Bank | Meredith, NH | +41 bps | $1.6 billion |
| 6 | Bank of New Hampshire | Laconia, NH | +41 bps | $2.8 billion |
| 7 | Mascoma Bank | Lebanon, NH | +39 bps | $3.0 billion |
| 8 | Profile Bank | Rochester, NH | +37 bps | $317 million |
| 9 | The Millyard Bank | Nashua, NH | +36 bps | $333 million |
| 10 | Savings Bank of Walpole | Walpole, NH | +36 bps | $858 million |
| 11 | First Seacoast Bank | Dover, NH | +25 bps | $576 million |
| 12 | Sugar River Bank | Newport, NH | +23 bps | $424 million |
| 13 | Claremont Savings Bank | Claremont, NH | +13 bps | $620 million |
| 14 | Primary Bank | Bedford, NH | +1 bps | $770 million |
| 15 | Walden Mutual Bank | Concord, NH | -20 bps | $193 million |
| 16 | Bank of New England | Salem, NH | -23 bps | $1.8 billion |
Rankings sort one published measure; they are not an overall judgment of any institution. Methodology · All rankings