
Greenbrier County
- State:
- West Virginia
Greenbrier County's estimated 2025 population is 31,697 with a growth rate of -0.71% in the past year according to the most recent United States census data. Greenbrier County is the 16th largest county in West Virginia. The 2010 population was 35,554 and has seen a growth of -10.85% since that time.