Johnstown is a populated place located in San Diego County, California. It appears on the El Cajon USGS 7.5-minute topographic quadrangle. The elevation at this location is approximately 597.65 feet (182.16 m) above sea level.
San Diego County · California
Johnstown is a populated place located in San Diego County, California. It appears on the El Cajon USGS 7.5-minute topographic quadrangle. The elevation at this location is approximately 597.65 feet (182.16 m) above sea level.