Chester is a census-designated place (CDP) in Plumas County, California, United States. Chester is located on Lake Almanor, 30 miles (48.3 km) north-northwest of Quincy. The town is located along State Route 36. The US Postal Service ZIP code for the community is 96020. The population was 2,187 at the 2020 census, up from 2,144 at the 2010 census.