Initially incorporated in 1727 as a part of the nearby Town of Gilmanton, Belmont was separated by an act of the Legislature in 1859 and adopted the name, Belmont, in 1869. It was home to William Badger who served as NH Governor for two consecutive terms beginning in 1834.

There are thirty square miles of land area, and over one and one-half square miles of lake area in Belmont. The current population is 6,228, although the seasonal influx of temporary residents in both the summer and winter recreational seasons greatly increases that number.

Nineteen miles of State highways and sixty-five miles of Town highways provide excellent transportation routes throughout the Town. Three Town highways have also been designated as Scenic Byways.

Like much of New Hampshire, Belmont's history centers around the flowage of the Tioga River and the mills that clustered along its banks. The Town Seal indicates the importance that this industry played in Belmont's past.