Trinity County, California

county in northwestern California, United States

Trinity County is a county in the northwestern part of the U.S. state of California. As of the 2020 census, the population was 16,112,[1] making it the fifth least-populous county in California. The county seat and largest community is Weaverville.[2] Trinity County was founded in 1850. The county takes its name from the Trinity River.


  1. "QuickFacts: Trinity County, California". U.S. Census Bureau. Retrieved August 1, 2023.
  2. "Find a County". National Association of Counties. Retrieved 2011-06-07.