
Keystone
- County:
- McDowell County
- County Seat:
- No
- Area (mi²):
- 0.324
- State:
- West Virginia
Keystone is a city located in McDowell County, West Virginia. Keystone has a 2025 population of 145. Keystone is currently declining at a rate of -3.97% annually and its population has decreased by -16.67% since the most recent census, which recorded a population of 174 in 2020.
The average household income in Keystone is $23,100 with a poverty rate of 57.69%. The median age in Keystone is 30.9 years: 62.5 years for males, and 30.7 years for females.