Bethlehem is a hillside town in Grafton County, New Hampshire, United States. The population was 2,526 at the 2010 census. It is home to Cushman and Strawberry Hill state forests. The eastern half of the town is within the White Mountain National Forest. The Appalachian Trail crosses in the south.The main village of the town, where 972 people resided at the 2010 census, is defined as the Bethlehem census-designated place, and is located at the junction of U.S. Route 302 with New Hampshire Route 142. The town also includes the villages of Maplewood and Pierce Bridge.