Yreka
- County:
- Siskiyou County
- County Seat:
- Yes
- Area (mi²):
- 9.983
- State:
- California
Yreka is a city located in Siskiyou County, California. Yreka has a 2026 population of 7,686. It is also the county seat of Siskiyou County. Yreka is currently declining at a rate of -1.07% annually and its population has decreased by -1.52% since the most recent census, which recorded a population of 7,805 in 2020.