The urban center of the town is the Sharon census-designated place, with a population of 729 at the 2010 census.

[2] The first inhabitants of the area they called Poconnuck were the Mattabesec Native Americans.

[3] Sharon has six sites listed on the U.S. National Register of Historic Places: The town is bounded on the north by Salisbury, on the east across the Housatonic River by Cornwall, on the south by Kent, and on the west by Dutchess County, New York.

Sharon is part of the Northwest Highlands of Connecticut, a region in and around the watershed of the Housatonic River.

The Appalachian Trail passes for a few miles through the east side of Sharon, near West Cornwall and U.S. Route 7.

31.1% of all households were made up of individuals, and 13.2% had someone living alone who was 65 years of age or older.

About 3.9% of families and 7.2% of the population were below the poverty line, including 10.4% of those under the age of 18 and none of those 65 and older.