Suisun City
- County:
- Solano County
- County Seat:
- No
- Area (mi²):
- 4.005
- State:
- California
Suisun City is a city located in Solano County, California. Suisun City has a 2026 population of 29,614. Suisun City is currently growing at a rate of 1.78% annually and its population has increased by 0.46% since the most recent census, which recorded a population of 29,478 in 2020.