Town Hall Address 11759 Market St. Adelphi, OH 43101 United States- Ross County Website http://adelphiohio.com/ Zoning 740-655-3445 11759 Market St. Adelphi, OH 43101 United States Fire District (740) 332-4691 City Bldg. Laurelville, OH 43135 United States Town Clerk 740-655-3445 11759 Market St. Adelphi, OH 43101 United States Water 740-655-3443 11759 Market St. Adelphi, OH 43101 United States Sewer 740-655-3443 11759 Market St. Adelphi, OH 43101 United States Tax Collector 740-655-3445 11759 Market St. Adelphi, OH 43101 United States Code Enforcement 740-655-3445 11759 Market St. Adelphi, 43101 United States County Ross