Question: The town in which Birch Point State Park is located in had what population in the 2010 census?

Context paragraphs:
Owls Head, Maine: Owls Head is a town in Knox County, Maine, United States.  The population was 1,580 at the 2010 census.  A resort and fishing area, the community is home to the Knox County Regional Airport.  It includes the village of Ash Point.

Kring Point State Park: Kring Point State Park is a 61 acre state park located on the St. Lawrence River in the Town of Alexandria in Jefferson County, New York.  The park is north of Alexandria Bay near the St. Lawrence County line and is connected to NY 12 by Kring Point Road.

Dash Point, Washington: Dash Point is an unincorporated community in Pierce County, Washington, United States.  Because it is not incorporated, no census population figures are available.  Dash Point is a residential area surrounded by Puget Sound to the north, Dash Point State Park to the east, and the city of Tacoma to the south and west.  Dash Point relies entirely on Tacoma for city services, and lacks a town center of its own.  Although Dash Point is located in Pierce County, Dash Point State Park is located in neighboring King County.

Long Point State Park – Thousand Islands: Long Point State Park – Thousand Islands is a 23 acre state park located at the northeast tip of Point Peninsula on Lake Ontario's Chaumont Bay.  The park is located in the Town of Lyme in Jefferson County, New York.

Birch Point State Park: Birch Point State Park is a public recreation area occupying 62 acre on Penobscot Bay in the town of Owls Head, Knox County, Maine.  The state park features a sandy, crescent-shaped "pocket beach" with scenic views of the Muscle Ridge Islands dotting Muscle Ridge Channel.  The park is managed by the Maine Department of Agriculture, Conservation and Forestry.

Stockton Springs, Maine: Stockton Springs is a town in Waldo County, Maine, United States.  The population was 1,591 at the 2010 census.  Stockton Springs is home to Fort Point State Park and Fort Point Light, both located on Fort Point, a peninsula on Cape Jellison.

Waterson Point State Park: Waterson Point State Park is a 6 acre state park located on Wellesley Island in the St. Lawrence River in the Town of Orleans in Jefferson County, New York.  It is near Wellesley Island State Park.

Cedar Point State Park: Cedar Point State Park is a 48 acre state park located on Cedar Point in the Town of Cape Vincent in Jefferson County, New York.  The park is located on Route 12E on the St. Lawrence River.

Montauk Point State Park: Montauk Point State Park is a 862 acre state park located in the hamlet of Montauk, at the eastern tip of Long Island in the Town of East Hampton, Suffolk County, New York.  Montauk Point is the easternmost extremity of the South Fork of Long Island, and thus also of New York State.

Stretch Island: Stretch Island is an island in Case Inlet in the southern part of Puget Sound in the U.S. state of Washington.  It forms part of the unincorporated Mason County community of Allyn-Grapeview.  The island has a land area of 1.2179 km² (300.95 acres) and a population of 119 persons as of the 2000 census.  On the island's north side, it has buoys for overnight mooring, and Stretch Point State Park, a small state park only accessible by boat.

Supporting paragraphs: Birch Point State Park Owls Head, Maine
Answer: 1,580