
Geyserville
- County:
- Sonoma County
- County Seat:
- No
- Area (mi²):
- 4.514
- State:
- California
Geyserville is a CDP located in Sonoma County, California. Geyserville has a 2025 population of 831. Geyserville is currently declining at a rate of -0.24% annually but its population has increased by 23.85% since the most recent census, which recorded a population of 671 in 2020.
The average household income in Geyserville is $110,041 with a poverty rate of 7.83%. The median age in Geyserville is 58.3 years: 58.5 years for males, and 58.1 years for females.