Johnstown, Maryland
Johnstown, Maryland | |
|---|---|
![]() Preston-on-the-Patuxent house | |
![]() Johnstown ![]() Johnstown | |
| Coordinates: 38°19′44″N 76°27′49″W / 38.32889°N 76.46361°W | |
| Country | United States |
| State | Maryland |
| County | Calvert |
| Time zone | UTC-5 (Eastern (EST)) |
| • Summer (DST) | UTC-4 (EDT) |
Johnstown is an unincorporated community in Calvert County, Maryland, United States.[1] The historic Preston-on-the-Patuxent house was listed on the National Register of Historic Places in 1974.[2]
References
- ^ "Geographic Names Information System". Johnstown (Populated Place). U.S. Geological Survey. January 29, 2009.
- ^ "National Register Information System". National Register of Historic Places. National Park Service. April 15, 2008.



