MA01 "Berkshire, Franklin, Hampden, Hampshire" MA02 "Middlesex, Suffolk, Worcester" MA03 Essex MA04 Norfolk MA05 Plymouth MA06 Bristol MA07 Barnstable MA08 "Dukes, Nantucket" MA09 Martha's Vineyard (Dukes) MA10 Nantucket Is. (Nantucket) MA11 Nomans Land (Dukes) MA12 "Cuttyhunk, Nashawena, Penikese, Pasque Is. (Dukes)" MA13 Monomoy Is. (Barnstable) MA14 Bumkins and Peddocks Is. (Plymouth) MA15 Bakers Is. (Essex) MA16 Milk and Thacher Is. (Essex) MA17 Plum Is. (Essex) MA18 Naushon and Nonamesset Is. (Dukes) MA19 West Is. (Bristol)