[2] Originally founded as Dedham Institution for Savings on March 19, 1831, the bank has connections to prominent individuals including Horace Mann.

On November 15, 2017, the Dedham Savings Board of Corporators, on the recommendation of the Bank's Trustees and Executive Management, voted to approve the formation of 1831 Bancorp, MHC.

Dedham Savings offers a range of financial and electronic banking services to individuals, businesses and organizations.

In 2011, Dedham Savings became a partial owner of Plimoth Trust Company, LLC, the parent company of Plimoth Investment Advisors, a portfolio management firm providing investment management, trust, retirement planning services and estate administration for both private and institutional clients.

The bank was first opened in 1831 at the law office of Treasurer Jonathan H. Cobb at 18 Norfolk Street in Dedham.

[15] In 1847, it moved to the offices of the Norfolk Mutual Fire Insurance Company at 4 Pearl Street when that building was constructed.

These communities include Dedham, Needham, Norwood, Sharon, South Boston, Walpole, and Westwood and contiguous areas.