Edgartown is located on the island of Martha's Vineyard, south of the Cape peninsula.   Edgartown is a resort city established by English explorers and settlers to the region in 1600s.   It was the first colonial settlement on Martha's Vineyard.   The community was founded in 1642, originally called Great Harbor, lead by Thomas Mayhew.   Edgartown was named in honor of Edgar, the young son of King James II of England.   It became an important whaling seaport in the late 1700s and 1800s.   The Town of Edgartown was incorporated as a city in 1671 and is in Dukes County.   Edgartown is the "wet" town on Martha's Vineyard compared to the "dry" towns elsewhere on the island.   As can be seen on the map below, Edgartown is located on the eastern part of the island.
Edgartown currently has a population of about 4,054 people (2009).   Edgartown citizens are composed of 92.6% Caucasians, 1.2% Hispanics, 0.5% Asian, and 1.6% Black.   The median household income for Edgartown residents is $66,323 and the per capita income is $33,725.   About 35.7% of Edgartown residents have a Bachelor's degree or higher.
Edgartown, other than the home to Native Americans prior to the arrival of the French fur traders and English explorers, was first settled as an English investment enterprize by Puritans, financed by the Massachusetts Bay Company, manned primarily by persecuted Christians who did not conform to the Church of England doctrine.   Edgartown became an important port for emigrants primarily from England and trade during the late 1600s through the early 1900s.
There are no highways passing through or terminatin in Edgartown, just county roads.   Ferries leave to and from Edgartown to the mainland (Falmouth, Cape Cod) and Chappaquiddick, just east of Edgartown.   Additional information about Edgartown can be found at Edgartown Info and at the Official Edgartown site.
I found 5 varieties of manhole covers in Edgartown, plus one small utility cover too small for a man to crawl through.