Town Hall Address 20 S. Walnut St. London, OH 43140 United States- Madison County Website https://www.londonohio.gov/ Zoning 740-852-7045 20 S. Walnut St. London, OH 43140 United States Fire District 740-852-4297 103 E High St. London, OH 43140 United States Town Clerk 740-852-3243 20 S. Walnut St. London, OH 43140 United States Water 740-852-1867 20 S. Walnut St. London, OH 43140 United States Sewer 740-852-1867 20 S. Walnut St. London, OH 43140 United States Tax Collector 740-852-0693 20 S. Walnut St. London, OH 43140 United States Code Enforcement 740-852-7045 20 S. Walnut St. London, 43140 United States County Madison