Haverhill is a town in Grafton County, New Hampshire, United States.
 The population was 4,697 at the 2010 census.
 Haverhill includes the villages of Woodsville, Pike, and North Haverhill, the historic town center at Haverhill Corner, and the district of Mountain Lakes.
 Located here are Bedell Bridge State Park, Black Mountain State Forest, Kinder Memorial Forest, and Oliverian Valley Wildlife Preserve.
 It is home to the annual North Haverhill Fair, and to a branch of the New Hampshire Community Technical Colleges.
 The village of North Haverhill is the county seat of Grafton County.
Woodsville is a census-designated place (CDP) in the town of Haverhill in Grafton County, New Hampshire, U.S., along the Connecticut River at the mouth of the Ammonoosuc River.
 The population was 1,126 at the 2010 census.
 Although North Haverhill is now the county seat of Grafton County, the village of Woodsville has traditionally been considered the county seat, as the county courthouse was originally located there.
 The county buildings are now located halfway between Woodsville and the village of North Haverhill to the south.
Grafton Lakes State Park is a 2545 acre state park located in Rensselaer County, New York, United States.
 The park is in the central part of the Town of Grafton and north of the hamlet of Grafton on NY Route 2, northeast of Albany.
 The park contains the Shaver Pond Nature Center.
Lincoln is a town in Grafton County, New Hampshire, United States.
 It is the second-largest town by area in New Hampshire.
 The population was 1,662 at the 2010 census.
 The town is home to the New Hampshire Highland Games and to a portion of Franconia Notch State Park.
 Set in the White Mountains, large portions of the town are within the White Mountain National Forest.
 The Appalachian Trail crosses in the northeast.
 Lincoln is the location of the Loon Mountain ski resort and associated recreation-centered development.
The Claremont–Lebanon Micropolitan Statistical Area, as defined by the United States Census Bureau, is an area consisting of four counties – two in New Hampshire and two in Vermont, anchored by the cities of Lebanon, New Hampshire and Claremont, New Hampshire.
 At the 2010 census, the area was defined as two separate Micropolitan Statistical Areas (μSAs), Claremont and Lebanon.
 The Claremont μSA, consisting of Sullivan County, New Hampshire, had a population of 43,742, while the Lebanon μSA, comprising Grafton County, New Hampshire, and Orange and Windsor counties in Vermont, had a population of 174,724.
 In 2013, the two areas were combined to form the Claremont-Lebanon μSA, and in 2015 the estimated population was 216,923.
 The Claremont–Lebanon μSA is the most populous micropolitan area in the United States.
Orange is a town in Grafton County, New Hampshire, United States.
 The population was 331 at the 2010 census.
The Twin State Mutual Aid Fire Association ("Twin State") is the dispatch center and coordinating agency for fire and emergency medical services operations in 23 towns in Grafton County, New Hampshire, and Orange County and Caledonia County in Vermont.
 Dispatching duties are handled by the Grafton County Sheriff's Department stationed in North Haverhill, New Hampshire.
Alexandria is a town in Grafton County, New Hampshire, United States.
 The population was 1,613 at the 2010 census.
 Newfound Lake is in the northeast corner, with Wellington State Park on the western shore.
 The town is home to Welton Falls State Forest.
 Cardigan Mountain State Park, with Mount Cardigan, is in the west.
 Another attraction is Mowglis Mountain, named for Rudyard Kipling's "Jungle Book" hero.
Cardigan Mountain State Park is a 5655 acre state park in Orange, New Hampshire.
 The park is free to use, open year-round, and offers a hiking trail up to the 3,121-foot treeless granite summit of Mount Cardigan.
 There are picnic facilities.
The Old Grafton County Courthouse is a historic courthouse building at 1 Court Street in Plymouth, New Hampshire.
 This modest wood frame building was built in 1774 to serve as one of two courthouses for Grafton County, which had just been established; it is one of the oldest surviving civic structures in the state.
 It was described at the time of its construction as having "a stately cupola out of proportion to the diminutive size of the structure".
 After a new courthouse was built in 1823, the building was sold and moved to the outskirts of Plymouth, and used as a wheelwright's shop, undergoing significant alteration to accommodate that function.
 In 1876 the building was acquired by the Young Ladies' Library Association, which moved it to its present location and restored it (except the cupola, of which a replica was added sometime before 1906).
 It is now the museum of the Plymouth Historical Society.

Question: How big is the state park located in Grafton County, New Hampshire?
Answer: 5655 acre