| Charlestown, New Jersey | |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | USA New Jersey Hunterdon County#USA New Jersey#USA |
| Pushpin Map Caption: | Charlestown's location in Hunterdon County (Inset: Hunterdon County in New Jersey) |
| Subdivision Type: | Country |
| Subdivision Name: |  United States |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Name2: | Hunterdon |
| Subdivision Type3: | Township |
| Subdivision Name3: | Bethlehem |
| Timezone: | Eastern (EST) |
| Utc Offset: | −05:00 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | −04:00 |
| Elevation Ft: | 718 |
| Coordinates: | 40.6892°N -74.9725°W |
| Blank Name: | GNIS feature ID |
| Blank Info: | 875373[1] |
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.[2] [1] [3]
By 1881, Charlestown had a school, wheelwright shop, blacksmith and about twelve dwellings.[4]