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Profitability · New Hampshire

US Banks with Highest Net Interest Margin (NIM) in New Hampshire

Ranked among banks headquartered in New Hampshire. Re-ranked 1-18 within the state from the same national ranking population.

#1 Net Interest Margin (NIM): BANK OF NEW ENGLAND — 4.31% . Net Interest Margin (NIM) measures the spread between interest earned on assets and interest paid on liabilities — the core unit economics of a commercial bank.

Ranked: 18 banks with reported data Showing: Top 18 Source: FFIEC call reports (Q1 2026) What is this metric? See the US Banks with … glossary entry Go deeper: What Is Net Interest Margin? A Bank Profitability Guide
# Bank HQ US Banks with … Total Assets
1 Bank of New England Salem , NH 4.31% $1.85B
2 Walden Mutual Bank Concord , NH 4.13% $181.8M
3 Primary Bank Bedford , NH 4.05% $743.4M
4 Savings Bank of Walpole Walpole , NH 3.87% $848.9M
5 Sugar River Bank Newport , NH 3.65% $416.5M
6 Franklin Savings Bank Franklin , NH 3.27% $908.2M
7 Bank of New Hampshire Laconia , NH 3.24% $2.81B
8 Merrimack County Savings Bank Concord , NH 3.23% $1.39B
9 Meredith Village Savings Bank Meredith , NH 3.23% $1.62B
10 Mascoma Bank Lebanon , NH 3.15% $3.00B
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11 Profile Bank Rochester , NH 3.09% $310.4M
12 Millyard Bank, the Nashua , NH 3.07% $312.4M
13 Claremont Savings Bank Claremont , NH 2.93% $619.7M
14 Woodsville Guaranty Savings Bank Woodsville , NH 2.73% $669.2M
15 Northway Bank Berlin , NH 2.70% $1.19B
16 First Seacoast Bank Dover , NH 2.44% $588.8M
17 Salem Co-operative Bank Salem , NH 2.40% $570.4M
18 Piscataqua Savings Bank Portsmouth , NH 1.58% $381.3M

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All data sourced from the most recent FFIEC call report filings, refreshed each quarter as new filings are processed. This leaderboard excludes banks with total assets under $100,000K to filter out anomalous micro-bank ratios. See /data-updates/ for the current data freshness window.

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