McClellan Park is a census-designated place (CDP) in Sacramento County, California.

[3] The 2010 United States Census reported that McClellan Park's population was 743.

It is the site of the former McClellan Air Force Base, closed by the federal government in 2003.

[5] According to the United States Census Bureau, the CDP covers an area of 4.1 square miles (10.5 km2), all of it land.

There were 226 housing units at an average density of 55.8 per square mile (21.5/km2), of which 1 (0.5%) were owner-occupied, and 193 (99.5%) were occupied by renters.