Suncook, New Hampshire

Suncook, New Hampshire
Census-designated place
Center of Suncook village
Location in Merrimack County and the state of New Hampshire.
Coordinates: 43°7′51″N 71°27′10″W / 43.13083°N 71.45278°W / 43.13083; -71.45278
Country	United States
State	New Hampshire
County	Merrimack
Towns	Pembroke, Allenstown
Area [1]
• Total	3.91 sq mi (10.12 km2)
• Land	3.72 sq mi (9.64 km2)
• Water	0.19 sq mi (0.48 km2)
Elevation	269 ft (82 m)
Population  (2020)
• Total	5,501
• Density	1,477.97/sq mi (570.66/km2)
Time zone	UTC-5 (Eastern (EST))
• Summer (DST)	UTC-4 (EDT)
ZIP code	03275
Area code	603
FIPS code	33-75140
GNIS feature ID	0870274

Suncook is a census-designated place (CDP) in Merrimack County, New Hampshire, United States. The population was 5,501 at the 2020 census.^[2] Approximately two-thirds of Suncook is located in the town of Pembroke, with the remainder in Allenstown.^[3]

The village of Suncook formed along the falls of the Suncook River, which drops 70 feet (21 m) in one-half mile (1 km) just before joining the Merrimack River. Much of the center of the village is occupied by 19th-century factory buildings which once used the river's energy for hydropower. The buildings have now largely been converted to other uses.^{[citation needed]} Much of Suncook's late 19th-century commercial village center has been listed on the National Register of Historic Places.

Suncook was once home to the Suncook Valley Railroad, a shortline railroad company that operated northwest to Concord and northeast to Barnstead. The railroad operated on former Boston and Maine track that was sold to the company. The Suncook Valley Railroad went bankrupt in 1952 and all its track was torn up.