Charlestown, New Jersey
Charlestown is an unincorporated community located within Bethlehem Township, in Hunterdon County, in the U.S. state of New Jersey, off County Route 635,  southwest of Hampton.

History
By 1881, Charlestown had a school, wheelwright shop, blacksmith and about twelve dwellings.

References

Bethlehem Township, New Jersey
Unincorporated communities in Hunterdon County, New Jersey
Unincorporated communities in New Jersey