New England Commonwealth

The New England Commonwealth was one of the thirteen commonwealths of the pre-War United States. Created in 1969, it was comprised of the former states of Maine, New Hampshire, Vermont, Massachusetts, Rhode Island and Connecticut.

The Commonwealth
The Commonwealth is what is left of the pre-War American state of Massachusetts in New England. While traditionally called a commonwealth in itself, before the Great War, Massachusetts was also part of the New England Commonwealth of the United States in the alternate history of the Fallout universe. Most of it is a war-ravaged quagmire of violence and despair like much of the rest of the former United States, but it is also where the mysterious Institute is located.

The Commonwealth

 * Cambridge (Fallout 4)
 * Concord (Fallout 4)
 * Glowing Sea (Fallout 4)
 * Boston (Fallout 4)
 * Bunker Hill (Fallout 4)
 * Concord (Fallout 4)
 * Goodneighbor (Fallout 4)
 * Vault 111 (Fallout 4)
 * Diamond City (Fallout 4)
 * The Institute (Appears in Fallout 4, mentioned in Fallout 3 and the CIT is mentioned in Fallout: New Vegas)
 * Lexington (Fallout 4)
 * Medford (Fallout 4)
 * Nahant (Fallout 4)
 * Natick (Fallout 4)
 * Quincy (Fallout 4)
 * Salem (Appears in Fallout 4, Mentioned in Mothership Zeta)

Former Massachusetts

 * Bradberton (Nuka-World)
 * Braintree (mentioned in Fallout 4)
 * Cape Cod (Mentioned in Fallout 4)
 * Danvers (Mentioned in Fallout 4)
 * Framingham (Mentioned in Fallout 4)
 * Nuka-World (Nuka-World)
 * West Stockbridge (Mentioned in Fallout 4)

Former Maine

 * The Island (Far Harbor)
 * Far Harbor (Far Harbor)
 * Vault 118 (Far Harbor)
 * Acadia National Park (Far Harbor)
 * The Nucleus (Far Harbor)
 * Vim! Pop factory (Far Harbor)
 * Cranberry Island (Far Harbor)
 * Huntress Island (Far Harbor)
 * Portland (Mentioned in Fallout 4)

Appearances
The New England Commonwealth appears only in Fallout 4, and is mentioned in Fallout 3 and its add-ons The Pitt, Broken Steel, Point Lookout, and Mothership Zeta, as well as Fallout: New Vegas.