Dalton is a town in Coös County, New Hampshire, United States.

[1] The town's highest point is the summit of Dalton Mountain, at 2,150 feet (660 m) above sea level.

The town includes the hamlet of Cushman, located on the Connecticut River opposite Gilman, Vermont.

Dalton lies fully within the Connecticut River watershed.

There were 520 housing units at an average density of 18.9 per square mile (7.3/km2).

24.1% of all households were made up of individuals, and 13.4% had someone living alone who was 65 years of age or older.