
Vacaville
- County:
- Solano County
- County Seat:
- No
- Area (mi²):
- 29.87
- State:
- California
Vacaville is a city located in Solano County, California. Vacaville has a 2025 population of 102,815. Vacaville is currently growing at a rate of 0.14% annually and its population has increased by 0.71% since the most recent census, which recorded a population of 102,092 in 2020.
The average household income in Vacaville is $132,238 with a poverty rate of 7.47%. The median age in Vacaville is 38.1 years: 38.1 years for males, and 38.1 years for females.