There's more than one place called '''Jamestown''':
Jamestown (Saint Helena) - the capital of Saint Helena (island)
Jamestown (California) - a city in California
Jamestown (New York) - a city in Chautauqua County, in the Southern Tier of New York
Jamestown (North Dakota) - county seat of Stutsman County, North Dakota
Jamestown (Rhode Island) - a city in Rhode Island
Jamestown (Virginia) - a city in Virginia