Dennis is a town in Barnstable County, Massachusetts, United States, located near the center of the Cape Cod peninsula. It is a seaside resort town with colonial mansions along the northern Cape Cod Bay coastline and beaches along the southern Nantucket Sound. As of the 2020 census, its population was 14,674.
Elevation: 24 ft (7 m)
Country: United States
State: Massachusetts
County: Barnstable
Settled: 1639
Incorporated: 1793
Communities: Dennis · Dennis Port · East Dennis · South Dennis · West Dennis
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