Williams
- County:
- Colusa County
- County Seat:
- No
- Area (mi²):
- 4.946
- State:
- California
Williams is a city located in Colusa County, California. Williams has a 2026 population of 5,598. Williams is currently declining at a rate of -0.29% annually but its population has increased by 0.94% since the most recent census, which recorded a population of 5,546 in 2020.