West Marion is a census-designated place (CDP) in McDowell County, North Carolina, United States, adjacent to the city of Marion, the county seat.

According to the United States Census Bureau, the CDP has a total area of 1.9 square miles (4.9 km2), all land.

As of the census[3] of 2000, there were 1,556 people, 677 households, and 459 families residing in the CDP.

There were 731 housing units at an average density of 390.5 per square mile (150.8/km2).

27.3% of all households were made up of individuals, and 12.1% had someone living alone who was 65 years of age or older.