Wilmot is a town in Merrimack County, New Hampshire, United States. The population was 1,407 at the 2020 census. The town includes the communities of Wilmot, Wilmot Flat, and North Wilmot. Incorporated in 1807 from part of New London, the Kearsarge gore, and a small piece of New Chester, the town took its name from Dr. James Wilmot, an Eng…Wilmot is a town in Merrimack County, New Hampshire, United States. The population was 1,407 at the 2020 census. The town includes the communities of Wilmot, Wilmot Flat, and North Wilmot. Incorporated in 1807 from part of New London, the Kearsarge gore, and a small piece of New Chester, the town took its name from Dr. James Wilmot, an English clergyman who had spoken out against England's treatment of the American colonies. Dr. Wilmot was rector at Barton-on-the-Heath in Warwickshire, England.