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High Yield. Made Simple.

3.65% APY*

balances up to $100,000
balances over $100,000 earn 3.65%-0.05% APY*

Earn a rate over 3X higher than the national average1 and enjoy the convenience of banking locally.

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Bank When and Where You Want

With a seamless digital experience across all devices, our online and mobile banking gives you the freedom to manage your account on the go, or from the comfort of home.
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Did you know?

Our Security Center features critical information designed to help protect you from fraud.

Why Join St. Mary's Bank?

We're open to everyone and have been putting our members first since 1908. That means we are dedicated to providing the products and services you deserve to help you reach your goals - with some other added discounts and benefits available only to members!
St. Mary's Bank Senior Leadership in Concord NH

2025 Community Impact Report

See the difference we made together. Our 2025 Community Impact Report showcases the volunteer hours, contributions, and partnerships that brought our commitment to people helping people to life across New Hampshire.

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Savings, Featured

High Yield Savings Accounts in New Hampshire: How They Work and What to Know

St. Mary's Bank Named Commercial Lender of the Year

business news, Featured

St. Mary’s Bank Named SBA Credit Union of the Year, Supporting New Hampshire  Small Businesses

Why Building a Home in New Hampshire Could Be a Better Option For You Than Buying Right Now

Featured

Why Building a Home in New Hampshire Could Be a Better Option For You Than Buying Right Now

*Annual Percentage Yield (APY) accurate as of 8/28/26. Deposit rates are variable—rates and terms may change at any time after account opening. Balances of $0.01 - $100,000.00 earn 3.65% APY Balances of $100,000.01 and over earn 3.65%-0.05% APY  |  Qualification requirements to open account and earn stated APY: open a St. Mary’s Bank High Yield Savings account with a minimum of $10. Maintain an existing or open a St. Mary’s Bank checking account (minimum $10 to open) and add qualifying recurring direct deposit totaling at least $1,500 during each monthly statement cycle. After opening a High Yield Savings account, you will have up to two statement cycles to establish a St. Mary’s Bank checking account and establish recurring monthly direct deposits to continue earning the stated savings rate. Thereafter, if qualification requirements are not met in any statement cycle, your account balance will automatically earn the base savings rate of 0.05% APY until requirements are met. Limit one High Yield Savings Account per member.  |  Qualifying Direct Deposit: A direct deposit is income that is automatically deposited into a member’s St. Mary’s Bank checking account by an employer, government agency, or other qualifying organization. This can include your paycheck, pension, Social Security, or other eligible benefits. Transfers between your St. Mary’s Bank accounts, and payments received through peer-to-peer or money app services are not considered direct deposits.  |  1. Comparison based the FDIC’s “National Rate: Savings” series (which includes both banks and credit unions) shows a national average savings rate of 0.38% as of August 2026. Rates are variable and subject to change.