|County||El Dorado County|
|Elevation||1,923 ft (586 m)|
A post office operated at Kelsey from 1856 to 1872, from 1875 to 1903, with several moves, and from 1920. The name honors Benjamin Kelsey, who came to California in 1841 and discovered gold at the site in 1848. The town was first known as Kelsey's Diggings because of the mining there.
- U.S. Geological Survey Geographic Names Information System: Kelsey, California
- Durham, David L. (1998). California's Geographic Names: A Gazetteer of Historic and Modern Names of the State. Clovis, Calif.: Word Dancer Press. p. 507. ISBN 1-884995-14-4.
- Home page. Black Oak Mine Unified School District. July 20, 2002. Retrieved on October 27, 2010.
- Climate Summary for Kelsey, California