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Profitability · North Dakota

US Banks with Highest Net Interest Margin (NIM) in North Dakota

Ranked among banks headquartered in North Dakota. Re-ranked 1-49 within the state from the same national ranking population.

#1 Net Interest Margin (NIM): WESTERN STATE BANK — 5.09% . 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: 49 banks with reported data Showing: Top 49 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 Western State Bank Devils Lake , ND 5.09% $2.59B
2 Banknorth Arthur , ND 5.00% $669.2M
3 Security First Bank of North Dakota New Salem , ND 4.62% $296.6M
4 Visionbank Fargo , ND 4.39% $302.6M
5 Goose River Bank, the Mayville , ND 4.31% $179.2M
6 Trucommunity Bank Garrison , ND 4.27% $321.0M
7 Union Bank, the Beulah , ND 4.22% $325.4M
8 Turtle Mountain State Bank Belcourt , ND 4.16% $111.4M
9 Dakota Heritage Bank Hunter , ND 4.13% $418.3M
10 First International Bank and Trust Watford City , ND 3.98% $6.05B
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11 Merchants Bank Rugby , ND 3.98% $257.6M
12 Cornerstone Bank Fargo , ND 3.98% $1.75B
13 State Bank of Bottineau Bottineau , ND 3.92% $116.9M
14 American Federal Bank Fargo , ND 3.90% $764.4M
15 Peoples State Bank of Velva Velva , ND 3.89% $206.1M
16 First State Bank Buxton , ND 3.87% $413.4M
17 Horizon Financial Bank Munich , ND 3.85% $202.2M
18 First State Bank of Golva Golva , ND 3.84% $120.9M
19 Dakota Western Bank Bowman , ND 3.81% $412.0M
20 Border Bank Fargo , ND 3.80% $1.06B
21 First Western Bank and Trust Minot , ND 3.78% $2.32B
22 Unison Bank Jamestown , ND 3.72% $596.1M
23 Kodabank Drayton , ND 3.72% $567.3M
24 First United Bank Park River , ND 3.72% $739.6M
25 Alerus Financial, N.A. Grand Forks , ND 3.71% $5.28B
26 First National Bank and Trust Company of Bottineau Bottineau , ND 3.69% $179.8M
27 Mcintosh County Bank Ashley , ND 3.68% $121.2M
28 Union State Bank of Hazen Hazen , ND 3.64% $251.8M
29 Gate City Bank Fargo , ND 3.58% $4.03B
30 Bravera Bank Dickinson , ND 3.53% $3.88B
31 Lincoln State Bank Hankinson , ND 3.52% $125.4M
32 Kirkwood Bank and Trust Company Bismarck , ND 3.51% $361.7M
33 Dakota Community Bank & Trust, N.A. Hebron , ND 3.48% $1.39B
34 Bank Forward Fargo , ND 3.47% $1.18B
35 United Valley Bank Cavalier , ND 3.43% $723.0M
36 Farmers and Merchants State Bank Langdon , ND 3.37% $140.1M
37 First State Bank & Trust Williston , ND 3.27% $539.7M
38 American State Bank & Trust Company of Williston Williston , ND 3.26% $660.5M
39 Choice Financial Group Fargo , ND 3.24% $6.13B
40 Stock Growers Bank Forman , ND 3.21% $334.8M
41 Strasburg State Bank Strasburg , ND 3.16% $109.0M
42 Farmers & Merchants Bank of North Dakota Tolna , ND 3.13% $124.0M
43 Liberty State Bank Powers Lake , ND 3.07% $163.7M
44 Commercial Bank of Mott Mott , ND 3.01% $145.7M
45 Starion Bank Bismarck , ND 2.86% $2.14B
46 First State Bank of Harvey Harvey , ND 2.85% $100.4M
47 Bell Bank Fargo , ND 2.77% $14.82B
48 State Bank & Trust of Kenmare Kenmare , ND 2.76% $197.7M
49 Bank of Tioga, the Tioga , ND 2.34% $413.0M

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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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