Town Hall Address 126 N. Market St. Martinsburg, OH 43037 United States- Knox County Zoning (740) 668-7325 126 N. Market St. Martinsburg, OH 43037 United States Fire District (740) 668-6461 187 N Market Street Martinsburg, OH 43037 United States Town Clerk (740) 668-7325 126 N. Market St. Martinsburg, OH 43037 United States Water 740-397-7041 17602 Coshocton Road Mount Vernon, OH 43050 United States Sewer 740-397-7041 17602 Coshocton Road Mount Vernon, OH 43050 United States Tax Collector (740) 668-7325 126 N. Market St. Martinsburg, OH 43037 United States Code Enforcement (740) 668-7325 126 N. Market St. Martinsburg, 43037 United States County Knox