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Earn 3 points on takeout or dine-in purchases January through April with your Visa Platinum Rewards credit card.

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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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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!
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penny phase out

Industry News, Featured

The US Penny is Retiring: Here's What Members Need to Know.

londonderry branch

Branch, Featured

St. Mary’s Bank Londonderry Branch Undergoing Renovations to Enhance Member Experience

Woman thinking while working on laptop at home with rising graph symbol representing financial growth.

General, RatesCategories, Featured

The Federal Reserve Cuts Rates: Here’s How It Could Affect You