
Williamson
- County:
- Mingo County
- County Seat:
- No
- Area (mi²):
- 3.275
- State:
- West Virginia
Williamson is a city located in Mingo County, West Virginia. Williamson has a 2025 population of 2,675. Williamson is currently declining at a rate of -2.83% annually and its population has decreased by -12.7% since the most recent census, which recorded a population of 3,064 in 2020.
The average household income in Williamson is $56,614 with a poverty rate of 32.31%. The median age in Williamson is 38.9 years: 32.5 years for males, and 44.7 years for females.