As of the census of 2010, there were 5,366 people, 2,340 households, and 1,477 families living in the city. The population density was. There were 2,632 housing units at an average density of. The racial makeup of the city was 98.2% White, 0.2% African American, 0.1% Native American, 0.6% Asian, 0.3% from other races, and 0.6% from two or more races. Hispanic or Latino of any race were 0.6% of the population. There were 2,340 households of which 25.7% had children under the age of 18 living with them, 46.8% were married couplesliving together, 12.1% had a female householder with no husband present, 4.2% had a male householder with no wife present, and 36.9% were non-families. 32.2% of all households were made up of individuals and 15.1% had someone living alone who was 65 years of age or older. The average household size was 2.24 and the average family size was 2.78. The median age in the city was 46.5 years. 20.5% of residents were under the age of 18; 6.1% were between the ages of 18 and 24; 20.9% were from 25 to 44; 30.6% were from 45 to 64; and 21.7% were 65 years of age or older. The gender makeup of the city was 47.2% male and 52.8% female.
2000 census
As of the census of 2000, there were 5,984 people, 2,484 households, and 1,684 families living in the city. The population density was 2,157.4 people per square mile. There were 2,737 housing units at an average density of 986.8 per square mile. The racial makeup of the city was 98.55% White, 0.05% African American, 0.10% Native American, 0.75% Asian, 0.03% Pacific Islander, 0.02% from other races, and 0.50% from two or more races. Hispanic or Latino of any race were 0.43% of the population. There were 2,484 households out of which 28.9% had children under the age of 18 living with them, 52.6% were married couples living together, 11.7% had a female householder with no husband present, and 32.2% were non-families. 28.9% of all households were made up of individuals and 13.4% had someone living alone who was 65 years of age or older. The average household size was 2.34 and the average family size was 2.86. In the city, the population was spread out with 22.9% under the age of 18, 6.7% from 18 to 24, 25.4% from 25 to 44, 26.8% from 45 to 64, and 18.2% who were 65 years of age or older. The median age was 42 years. For every 100 females, there were 88.2 males. For every 100 females age 18 and over, there were 81.5 males. The median income for a household in the city was $33,750, and the median income for a family was $40,851. Males had a median income of $37,614 versus $21,019 for females. The per capita income for the city was $18,578. About 16.9% of families and 20.6% of the population were below the poverty line, including 29.4% of those under age 18 and 15.1% of those age 65 or over.
Political Officials
Mayor: Sandy Hunt 1st Ward Councilman: Jeff Gieseke 2nd Ward Councilman: Joey Smith
3rd Ward Councilman: Ryan Yost 4th Ward Councilman: Steve Pallisco
The climate in this area is characterized by relatively high temperatures and evenly distributed precipitation throughout the year. According to the Köppen Climate Classification system, New Martinsville has a Humid subtropical climate, abbreviated "Cfa" on climate maps.
