About Hartley CDP, California
Hartley CDP, California is a census-designated place (CDP) in Plumas County, California, United States. The population was 1,207 at the 2010 census, up from 1,190 at the 2000 census.
Hartley is located at 39°56′3″N 120°22′19″W / 39.93444°N 120.37194°W / 39.93444; -120.37194 (39.934447, -120.372026).
According to the United States Census Bureau, the CDP has a total area of 19.2 square miles (49 km2), all of it land.