The town was first settled around 1763 by Jean Laframboise, who is also credited with introducing apple growing to the area.

Chazy is named after French Lieutenant de Chézy of the Carignan-Salières Regiment, who was killed by the Iroquois in 1666.

[6] The eastern boundary of the town, in the center of the western channel of Lake Champlain, is the state border with Vermont.

The town gave its name to the mid-Ordovician Chazy Formation, the first true reef system, which was originally identified from limestone outcroppings in the township.

William H. Miner, a wealthy railroad industrialist, and philanthropist, donated $2,000,000 to build the school.

The old school was five stories high surrounding a bell tower of 71 feet (22 m) and contained two gymnasiums and two swimming pools, as well as an auditorium capable of seating 1,100 people.

Chazy Central Rural School has four soccer fields which host youth, men's and women's leagues.

In 2011, the boys' varsity baseball team won its first sectional championship in school history.

This hockey rink was completed using a $75,000 grant funded by the NHLPA Goals and Dreams program.

The Beekmantown Eagles girls' varsity high school ice hockey team also practices and hosts games at this venue.

The Lake Alice wildlife management area consists of 1,468 acres (594 ha) along Duprey Road in the town.

The area is used for hiking, snowshoeing, cross country skiing, fishing and bird watching.