Melba
- County:
- Canyon County
- County Seat:
- No
- Area (mi²):
- 0.457
- State:
- Idaho
Melba is a city located in Canyon County, Idaho. Melba has a 2026 population of 625. Melba is currently growing at a rate of 6.84% annually and its population has increased by 9.65% since the most recent census, which recorded a population of 570 in 2020.