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Welcome to Dukes County ...

Time Zone: Dukes County lies in the Eastern Time Zone (EST/EDT) and observes daylight saving time.

The community of Edgartown is the Seat for Dukes County.

Dukes County was founded in 1695.

From the Census Estimates for 2019, <1> Dukes had a population of 17,332 people. This is an increase of 4.59% since the last Census (which gave a population of 16,572 people in 2010).

At the time of the 2010 Census, Dukes represented 0.25% of the total population of Massachusetts.

Below are some of the communities located in Dukes County:

  • Aquinnah
    (11 miles [17.7 km] to the southwest)
    • Aquinnah is located in Dukes County (MA)
    • Jump to our Gazetteer entry for Aquinnah
    • Population from the 2020 Census: 322 people
    • Former name for Aquinnah:
    • Gay Head
  • Chilmark
    (8 miles [12.9 km] to the southwest)
    • Chilmark is located in Dukes County (MA)
    • Jump to our Gazetteer entry for Chilmark
    • Population from the 2020 Census: 930 people
  • Edgartown
    (5 miles [8 km] to the east)
    • Edgartown is located in Dukes County (MA)
    • Jump to our Gazetteer entry for Edgartown
    • Population from the 2020 Census: 4,383 people
  • Gosnold
    (9 miles [14.5 km] to the west)
    • Gosnold is located in Dukes County (MA)
    • Jump to our Gazetteer entry for Gosnold
    • Population from the 2020 Census: 75 people
  • Oak Bluffs
    (3 miles [4.8 km] to the northeast)
    • Oak Bluffs is located in Dukes County (MA)
    • Jump to our Gazetteer entry for Oak Bluffs
    • Population from the 2020 Census: 4,696 people
  • Tisbury
    (2 miles [3.2 km] to the north)
    • Tisbury is located in Dukes County (MA)
    • Jump to our Gazetteer entry for Tisbury
    • Population from the 2020 Census: 4,128 people
  • West Tisbury
    (3 miles [4.8 km] to the southwest)
    • West Tisbury is located in Dukes County (MA)
    • Jump to our Gazetteer entry for West Tisbury
    • Population from the 2020 Census: 2,927 people

Websites of Interest ...

Footnotes ...

<1>On a yearly basis, the US Census Bureau creates an estimate of the county's population. Keep in mind that this is an estimate and not an actual count. The last physical count was the 2010 Census and the next count will be for the 2020 Census.