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 / 37.74083°N 81.22944°W / 37.74083; -81.22944 (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.