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Senate District 28
Mark Dion


FUN FACT

Sen. Dion is a brother of the Delta Chi Fraternity. During college, his fraternity president was Dana Dow, a Republican who also currently serves in the Maine Senate.

The Latest

Sens. Chipman and Dion speak out against retaliatory lobster tariffs

Sen. Ben Chipman and Sen. Mark Dion, both D-Portland, joined a bipartisan group of state lawmakers in speaking out against the 25 percent Chinese tariff increase on U.S. lobster exports. In a letter to Maine’s Congressional Delegation, 112 state lawmakers warn of devastating economic consequences...

Sens. Chipman and Dion receive perfect scores on education record

Sen. Ben Chipman and Sen. Mark Dion, both D-Portland earned a 100 percent rating from the Maine Education Association for their voting record on education issues during the second regular session of the 128th Legislature. “Our educators and our schools play an enormous role in setting Maine...

Sen. Mark Dion is serving his first term in the Maine Senate, representing Senate District 28, which consists of part of Portland and part of Westbrook.

Sen. Dion is a practicing attorney in Portland, and was sheriff of Cumberland County for 12 years and an officer in the Portland Police Department for 21 years. He has been an advocate on mental health and substance abuse policy, community correction practices and inter-agency partnerships involving public health and safety.

Prior to his election to the Maine Senate, Sen. Dion served three terms in the Maine House of Representatives, from 2010 through 2016. He is a former co-chair of the Committee on Criminal Justice and Public Safety, where he successfully passed legislation to fund eight pilot drug diversion programs at sheriff’s offices around the state, focused on squashing the drug crisis with education, outreach, prevention and treatment. He has also chaired the Committee on Energy, Utilities and Technology.

Sen. Dion is also an appointee to the Maine-Canadian Legislative Advisory Commission, a standing commission of Maine government and business leaders dedicated to maintaining and strengthening strong economic and cultural ties between the people of Maine and Canada. He has also served on the Legislative Redistricting Committee.

In 2013, the Maine chapter of the National Association of Social Workers honored Dion as Legislator of the Year. The award recognized his longtime advocacy on behalf of jail inmates in need of mental health services.

Sen. Dion lives in Portland with his wife, Cheryl. They have two adult daughters.


Education

  • B.A., Criminology, University of Southern Maine.
  • Master in Human Services Administration, Antioch New England Graduate School.
  • J.D., University of Maine School of Law.

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