
New Martinsville
- County:
- Wetzel County
- County Seat:
- No
- Area (mi²):
- 2.673
- State:
- West Virginia
New Martinsville is a city located in Wetzel County, West Virginia. New Martinsville has a 2025 population of 5,009. New Martinsville is currently declining at a rate of -0.77% annually and its population has decreased by -3.73% since the most recent census, which recorded a population of 5,203 in 2020.
The average household income in New Martinsville is $63,983 with a poverty rate of 18.81%. The median age in New Martinsville is 44.2 years: 43 years for males, and 45.1 years for females.