Bluefield is a city in Mercer County, West Virginia, United States. The population was 10,447 at the 2010 census. It is the core city of the Bluefield WV-VA micropolitan area, which has a population of 107,342.
Bluefield is located at 37°15′44″N 81°13′7″W (37.262219, -81.218674) in the Appalachian Mountains of West Virginia across the state border from Bluefield, Virginia.
According to the United States Census Bureau, the city has a total area of 8.86 square miles (22.95 km2), all land.
As of the census of 2010, there were 10,447 people, 4,643 households, and 2,772 families living in the city. The population density was 1,179.1 inhabitants per square mile (455.3/km2). There were 5,457 housing units at an average density of 615.9 per square mile (237.8/km2). The racial makeup of the city was 73.7% White, 23.0% African American, 0.3% Native American, 0.5% Asian, 0.2% from other races, and 2.3% from two or more races. Hispanic or Latino of any race were 0.9% of the population.
There were 4,643 households, of which 26.1% had children under the age of 18 living with them, 38.6% were married couples living together, 16.5% had a female householder with no husband present, 4.6% had a male householder with no wife present, and 40.3% were non-families.