Calpella (Pomo: Kalpela, meaning "Mussel bearer")[5][6] is an unincorporated community and census-designated place (CDP) in Mendocino County, California, United States.

The small town is the site of the Mendocino Redwood Company mill and offices, which controls ten percent of the private land in the county.

[7] The Calpella post office opened in 1860, closed in 1868, reopened in 1872, was discontinued for a time, and moved in 1920.

According to the United States Census Bureau, the Calpella CDP covers an area of 2.6 square miles (6.7 km2), 99.07% of it land and 0.93% of it water.

This region experiences warm (but not hot) and dry summers, with no average monthly temperatures above 71.6 °F (22.0 °C).

There were 272 housing units at an average density of 106.2 per square mile (41.0/km2), of which 124 (49.0%) were owner-occupied, and 129 (51.0%) were occupied by renters.

[30] Federally, Calpella is in California's 2nd congressional district, represented by Democrat Jared Huffman.