Franklin Furnace, OH
Franklin Furnace is a census-designated place (CDP) in Scioto County, Ohio, United States, along the Ohio River. The population was 1,660 at the 2010 census. Franklin Furnace was the name of an early iron ore furnace built in eastern Scioto County in 1826. The community that grew in that area is named after the furnace. Franklin Furnace's post office has the ZIP code of 45629.
Franklin Furnace is located at 38°37′24″N 82°50′53″W / 38.62333°N 82.84806°W / 38.62333; -82.84806 (38.623342, -82.847997).
According to the United States Census Bureau, the CDP has a total area of 2.7 square miles (7.1 km²), of which, 2.4 square miles (6.2 km²) of it is land and 0.4 square miles (0.9 km²) of it (13.14%) is water.