Star
- County:
- Ada County
- County Seat:
- No
- Area (mi²):
- 11.802
- State:
- Idaho
Star is a city located in Ada County, Idaho. Star has a 2026 population of 18,208. Star is currently growing at a rate of 11.11% annually and its population has increased by 58.8% since the most recent census, which recorded a population of 11,466 in 2020.