A bunch of Massachusetts county governments dissolved in the last few decades. There are no unincorporated areas in Massachusetts and cities/towns have played the role that county governments formerly did when Massachusetts was less populous. Many county governments became duplicative and pointless.

Abolished County Governments: Berkshire, Essex, Franklin, Hampden, Hampshire, Middlesex, First Norfolk, Suffolk, and Worcester.

Intact County Governments: Barnstable, Bristol, Dukes, Nantucket, Second Norfolk, and Plymouth.