Rio Vista
- County:
- Solano County
- County Seat:
- No
- Area (mi²):
- 6.6
- State:
- California
Rio Vista is a city located in Solano County, California. Rio Vista has a 2026 population of 10,248. Rio Vista is currently growing at a rate of 1.09% annually and its population has increased by 2.4% since the most recent census, which recorded a population of 10,008 in 2020.