Blenheim, SC is a city located in Marlboro County, South Carolina and has a land area of 102.95 square miles (266.64 km2). The water area for the city is 1.01 square miles or 2.62 km2. There is one unique zip code in Blenheim, South Carolina and it is 29516. The area code(s) for Blenheim is 843.
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