Smithville is an unincorporated community in southern Ritchie County, West Virginia, United States. It lies along West Virginia Route 47 south of the town of Harrisville, the county seat of Ritchie County.Rand McNally. The Road Atlas '08. Chicago: Rand McNally, 2008, p. 112. Its elevation is 686 feet (209 m)., Geographic Names Information System, 1980-06-27. Accessed 2008-04-23. It has a post office with the ZIP code 26178.USPS – Cities by ZIP Code
The community was named after Barnes Smith, Sr., the original owner of the town site.
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