Dukes County, Massachusetts

Dukes County profile, demographic data, and geographic information.

Local Government & Public Administration

Authoritative general-purpose local government units serving this area U.S. Census Bureau GUS (2026) / GMAF

Government Unit	Unit Type	Jurisdiction Role	Contact / Address
COUNTY OF DUKES GUS Population: 21,061 (2024) ID: 212030	County	Official County Government	Contact: CHAIRMAN PO BOX 190, EDGARTOWN MA 02539-0190
TOWN OF OAK BLUFFS GUS Population: 5,407 (2024) ID: 166485	Township	Municipal Government Within County	Contact: TOWN CLERK PO BOX 2490, OAK BLUFFS MA 02557-2490
TOWN OF EDGARTOWN GUS Population: 5,328 (2024) ID: 208260	Township	Municipal Government Within County	Contact: TOWN CLERK PO BOX 5158, EDGARTOWN MA 02539-5158
TOWN OF TISBURY GUS Population: 4,927 (2024) ID: 185828	Township	Municipal Government Within County	Contact: SELECT BOARD PO BOX 1239, VINEYARD HAVEN MA 02568-0903
TOWN OF WEST TISBURY GUS Population: 3,637 (2024) ID: 183903	Township	Municipal Government Within County	Contact: TOWN CLERK PO BOX 278, WEST TISBURY MA 02575-0278
TOWN OF CHILMARK GUS Population: 1,249 (2024) ID: 166483	Township	Municipal Government Within County	Contact: CHAIR 401 MIDDLE RD, CHILMARK MA 02535-1995
TOWN OF AQUINNAH GUS Population: 451 (2024) ID: 183893	Township	Municipal Government Within County	Contact: TOWN ADMINISTRATOR 955 STATE RD, CHILMARK MA 02535-1689
TOWN OF GOSNOLD GUS Population: 62 (2024) ID: 166484	Township	Municipal Government Within County	Contact: TOWN CLERK 28 TOWER HILL RD, CUTTYHUNK MA 02713