
Donnelly
- County:
- Valley County
- County Seat:
- No
- Area (mi²):
- 0.714
- State:
- Idaho
Donnelly is a city located in Valley County, Idaho. Donnelly has a 2025 population of 259. Donnelly is currently growing at a rate of 0.78% annually and its population has increased by 3.19% since the most recent census, which recorded a population of 251 in 2020.
The average household income in Donnelly is $73,985 with a poverty rate of 46.06%. The median age in Donnelly is 53.5 years: 53.3 years for males, and 60.3 years for females.