New Tazewell is a city in Claiborne County, Tennessee, United States. The population was 3,037 at the 2010 census.
New Tazewell is located in central Claiborne County, adjacent to the twin city of Tazewell, at a coordinate of 36°26′16″N 83°36′27″W (36.437838, -83.607613). According to the United States Census Bureau, the city has a total area of 5.3 square miles (14 km2), all land.
As of the census of 2000, there were 2,871 people, 1,200 households, and 753 families residing in the city. The population density was 542.2 people per square mile (209.2/km2). There were 1,414 housing units at an average density of 267.0 per square mile (103.0/km2). The racial makeup of the city was 96.20% White, 1.46% African American, 0.45% Native American, 0.42% Asian, 0.77% from other races, and 0.70% from two or more races. Hispanic or Latino of any race were 1.04% of the population. There were 1,200 households, out of which 29.4% had children under the age of 18 living with them, 43.8% were married couples living together, 14.6% had a female householder with no husband present, and 37.3% were non-families.