Sunset Lake (Lakes Region, New Hampshire)

Sunset Lake is a 253 acre water body located in Belknap County in the Lakes Region of New Hampshire, United States, in the towns of Gilmanton and Alton. Water from Sunset Lake flows south to Crystal Lake, the head of the Suncook River, which flows to the Merrimack River and ultimately the Gulf of Maine.

The lake is classified as a warmwater fishery, with observed species including smallmouth and largemouth bass, rainbow smelt, chain pickerel, brown bullhead, sunfish, and yellow perch.