New martinsville is located in Wetzel county West virginia with a geographic area of 2.7 square miles. The total population in New martinsville is 5,123 with 46.6% male and 53.4% female. Children under age 5 represent 3.3% of the population, under age 18 equal 18.5% of the population and over age 65 is 22.1% of the population. The median household income is $45,303, per capita income is $22,735. There are a total of 1,974 housing units with 76.9% owner occupied. Education includes 33.5% of residents that are high school graduates and 18.3% with a bachelor's degree or higher. The average temperature in New martinsville in the summer is 71 degrees, and in the winter 32 degrees.
