Clearlake is a city in Lake County, California. Take a look below for 8 interesting and fun facts about Clearlake, California, United States. 1. Clearlake is 4.5 miles (7.2 km) north-northwest of Lower Lake, at an elevation of 1,417 feet (432 m). 2. As of the 2020 census, the city had a total population of…