Idanha
- County:
- Marion County
- County Seat:
- No
- Area (mi²):
- 0.74
- State:
- Oregon
Idanha is a city located in Marion County, Oregon. Idanha has a 2026 population of 157. Idanha is currently growing at a rate of 1.95% annually and its population has increased by 1.29% since the most recent census, which recorded a population of 155 in 2020.