Ione
- County:
- Amador County
- County Seat:
- No
- Area (mi²):
- 4.58
- State:
- California
Ione is a city located in Amador County, California. Ione has a 2026 population of 9,411. Ione is currently growing at a rate of 1.69% annually and its population has increased by 5.43% since the most recent census, which recorded a population of 8,926 in 2020.