About Representative DeCoste
A Lifetime of Service to Our District
Soldier. Public servant. Neighbor. David DeCoste has dedicated his life to the people of the 5th Plymouth District.
About David F. DeCoste
David F. DeCoste is a lifelong resident of Norwell whose career has been shaped by service, leadership, and a commitment to the communities of the South Shore. A graduate of Norwell High School, he earned a Bachelor of Science in Accounting and Finance from Northeastern University and later received a Master of Science in Administrative Sciences, with a concentration in Financial Economics, from Boston University.
David served for 22 years in the United States Army, rising to the rank of Major. During his military career, he held leadership and logistics assignments in the United States and abroad, including service in Croatia, Haiti, Portugal, and Saudi Arabia. He also served as an assistant professor of military science at Boston University, helping prepare future Army officers through the ROTC program. His military service instilled the discipline, accountability, and practical leadership that continue to guide his work in public office.
In the private sector, David has built a career in accounting, financial management, and education. He has worked as an accounting controller and has served as principal and controller of Stone Ridge Trust in Weymouth. He has also worked as an instructor and facilitator through Boston University, bringing real-world experience in finance, administration, and organizational leadership to the classroom.
"His military service instilled the discipline, accountability, and practical leadership that continue to guide his work in public office."
22 years of service. Rank of Major. Deployments across four continents.
Serving the 5th Plymouth District
David began his elected service on the Norwell Board of Selectmen in 2012. In 2014, he was elected to the Massachusetts House of Representatives, where he represents the 5th Plymouth District. Since taking office in 2015, he has focused on fiscal responsibility, public safety, housing, transportation, veterans' issues, and effective local government.
In the Legislature, David has served in several senior minority roles, including ranking minority member on committees overseeing housing, public service, transportation, and veterans' affairs. He has consistently worked to bring an independent, practical voice to Beacon Hill and to ensure that the concerns of local families, taxpayers, veterans, seniors, and small businesses are heard.
David remains deeply rooted in the district he serves and continues to approach public service with the same principles that have guided him throughout his life: duty, integrity, accountability, and common sense.
