Calpella is a census-designated place in Mendocino County, California. It is located on the Russian River  north of Ukiah, at an elevation of 682 feet (208 m). It is within the Ukiah Valley where U.S. Route 101 and State Route 20 intersect. The population was 679 at the 2010 census. 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.