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BankSonar

NSB Bank

Mason City, IA · State, non-member commercial bank

54

Sonar Score

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out of 100 · from public FDIC data

Reported March 31, 2026. The Sonar Score is an informational signal from public FDIC data — not a rating or financial advice.

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Key figures

Total assets
$479M
Total deposits
$415M
Branches
6
Return on assets
0.81%
Return on equity
9.99%
Charter type
State, non-member commercial bank
Established
1933
FDIC cert #
8094

How the 54 breaks down

Capital adequacyweight 40%

Capital ratio not reported.

Profitability (ROA)weight 30%

Modest but positive returns.

Return on equityweight 15%

Positive but moderate equity returns.

Scale & stabilityweight 15%

Community-scale institution.

Read the full Sonar Score methodology →

Your deposits at NSB Bank

NSB Bank is an FDIC-insured institution (Cert #8094). Deposits are insured up to $250,000 per depositor, per ownership category, by the full faith and credit of the US government. Learn how to maximize your coverage →

6 branch locations

173 Main St N

Titonka, IA 50480

900 Central Ave

Northwood, IA 50459

451 S Illinois Ave

Mason City, IA 50401

11723 Highway 9

Thompson, IA 50478

101 Highway 69 N

Forest City, IA 50436

2650 4th St Sw

Mason City, IA 50401

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