Great Southern's mission is to build winning relationships with its customers, associates, shareholders and communities. On any given day, we are hard at work helping young families realize the dream of home ownership, helping a business owner expand his or her business, or providing the right product or service to help an individual save for a future goal.

Need help saving money for Christmas, 2025? Open a GSB Christmas Club today! Christmas Club

Manage your account securely with online banking. Deposit checks, pay bills, and find your account/routing number from our most convenient location—online!

Join one of the best banks in Connecticut, and the only bank you’ll ever need. Get personal and business banking: checking, savings, loans, and more!

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Find a Great Southern Bank ATM or Banking Center near you. Get ATM hours and directions to your nearest location.

Greenfield Savings Bank's mission is to provide a secure place for local residents to save and to access financial products and resources. All of our decisions are based on long-term thinking and our commitment to exceptional service to our customers.

GSB Connect represents a better kind of banking by offering a high-yield savings in as little as 3 minutes. Open this simple high-yield account for 4% APY.

With Great Southern Bank’s mobile banking, you can bank anytime, anywhere. Simply grab your phone or tablet, download our free apps, log in and you have banking at your fingertips. Get started banking your way, on your time, today!

Great Southern Savings Bank - Your New Favorite Bank; credit cards, mortgages, commercial banking, auto loans, investing & retirement planning, checking and business banking.