Alton, New Hampshire

Alton, New Hampshire
Monument Square in the center of Alton
Coordinates: 43°27′15″N 71°13′11″W / 43.45417°N 71.21972°W / 43.45417; -71.21972
CountryUnited States
StateNew Hampshire
CountyBelknap
Incorporated1796
Villages
Government
  Board of Selectmen
  • Paul E. LaRochelle, Chair
  • Drew Carter
  • Andrew Morse
  • Richard Shea
  • Nicholas Buonopane III
  Town AdministratorRyan Heath
Area
  Total
83.2 sq mi (215.4 km2)
  Land63.7 sq mi (165.0 km2)
  Water19.5 sq mi (50.5 km2)  23.42%
Elevation
560 ft (171 m)
Population
 (2020)
  Total
5,894
  Density92/sq mi (35.7/km2)
Time zoneUTC−5 (Eastern)
  Summer (DST)UTC−4 (Eastern)
ZIP codes
03809 (Alton)
03810 (Alton Bay)
Area code603
FIPS code33-01060
GNIS feature ID0873530
Websitewww.alton.nh.gov

Alton is a town in Belknap County, New Hampshire, United States. The population was 5,894 at the 2020 census, up from 5,250 at the 2010 census. It is home to Alton Bay State Forest and Mount Major State Forest.

The primary settlement in town, where 499 people resided at the 2020 census, is defined by the U.S. Census Bureau as the Alton census-designated place (CDP) and is centered on the intersection of New Hampshire Route 11 and New Hampshire Route 140. The town also includes the village of Alton Bay, a long-time resort located beside Lake Winnipesaukee.