Jamaica is a town in Windham County, Vermont, United States. The population was 1,005 at the 2020 census. The town includes the villages of Jamaica, East Jamaica and Rawsonville. Its ZIP code is 05343. The town is home to Jamaica State Park, noted for scenic camping spots and various swimming holes, including Hamilton Falls. The nearest large t…Jamaica is a town in Windham County, Vermont, United States. The population was 1,005 at the 2020 census. The town includes the villages of Jamaica, East Jamaica and Rawsonville. Its ZIP code is 05343. The town is home to Jamaica State Park, noted for scenic camping spots and various swimming holes, including Hamilton Falls. The nearest large town is Brattleboro.