Crab Orchard is a census-designated place (CDP) in Raleigh County, West Virginia, USA. The population was 2,678 at the 2010 census.
Crab Orchard is located at 37°44′27″N 81°13′46″W (37.740792, -81.229307).
According to the United States Census Bureau, the CDP has a total area of 2.2 square miles (5.8 km2), all of it land.
As of the census of 2000, there were 2,761 people, 1,120 households, and 807 families living in the CDP. The population density was 1,217.2 people per square mile (469.6/km2). There were 1,219 housing units at an average density of 537.4/sq mi (207.3/km2). The racial makeup of the CDP was 98.19% White, 0.91% African American, 0.07% Native American, 0.11% Asian, 0.04% Pacific Islander, 0.18% from other races, and 0.51% from two or more races. Hispanic or Latino of any race were 0.62% of the population.
There were 1,120 households, out of which 31.7% had children under the age of 18 living with them, 57.1% were married couples living together, 11.2% had a female householder with no husband present, and 27.9% were non-families. 24.5% of all households were made up of individuals, and 11.3% had someone living alone who was 65 years of age or older. The average household size was 2.47 and the average family size was 2.92.
In the CDP, the population was spread out, with 23.1% under the age of 18, 9.4% from 18 to 24, 29.0% from 25 to 44, 24.6% from 45 to 64, and 13.9% who were 65 years of age or older. The median age was 37 years.