Kelseyville is a census-designated place (CDP) in Lake County, California, United States. Kelseyville is located six miles (9.7 kilometers) southeast of Lakeport, at an elevation of 1,384 feet (422 meters). The population was 3,353 at the 2010 census, up from 2,928 at the 2000 census.
Zip Codes in Kelseyville, CA that we also serve: 95451