Trinity County, California Cities (2025)

13 cities

City
Rank
2025 Pop.
2020 Pop.
Annual Change
Density
Area (mi²)
Type
Weaverville13,5783,308-0.03%27813 CDP
Hayfork23,4422,5862.14%4872 CDP
Lewiston32,4741,4813.56%12420 CDP
Junction City41,3247543.36%5027 CDP
Douglas City51,2006782.74%3930 CDP
Trinity Village66512483.83%1624 CDP
Salyer76194337.09%1175 CDP
Hyampom83501242.34%1720 CDP
Mad River9297341-2.94%835 CDP
Coffee Creek102931871.74%2512 CDP
Trinity Center11246265-0.4%475 CDP
Burnt Ranch12215185-1.83%1613 CDP
Post Mountain13126826.78%1012 CDP

Trinity County Cities Summary

Largest City

Weaverville is the largest city in Trinity County, with a population of 3,578.

Smallest City

Post Mountain is the smallest city in Trinity County, with a population of 126.

10 Largest Cities

There are 13 cities in Trinity County, California.

Location of Trinity County