Lonerock
- County:
- Gilliam County
- County Seat:
- No
- Area (mi²):
- 1.011
- State:
- Oregon
Lonerock is a city located in Gilliam County, Oregon. Lonerock has a 2025 population of 21 . Lonerock is currently declining at a rate of -4.55% annually and its population has decreased by -4.55% since the most recent census, which recorded a population of 22 in 2020.
The median age in Lonerock is 69.8 years: 76.5 years for males, and 68.8 years for females. For every 100 females there are 53.3 males.