[3] It is situated on the Little Ausable River, which flows east 6 miles (10 km) to Lake Champlain.

Interstate 87, the Adirondack Northway, passes 1 mile (1.6 km) east of the hamlet, with access from exit 35.

According to the United States Census Bureau, the Peru CDP has a total area of 1.6 square miles (4.1 km2), all land.

[2] The CDP describes the more densely populated central area within the town.

19.5% of all households were made up of individuals, and 9.6% had someone living alone who was 65 years of age or older.

[6] The two-day festival includes a parade, carnival-style games, a bake sale, and live music.