Town Hall Address 300 Grove Ave Washington Grove, MD 20880 United States- Montgomery County Website https://washingtongrovemd.org/ Zoning 301-926-2256 300 Grove Ave Washington Grove, MD 20880 United States Town Clerk 301-926-2256 300 Grove Ave Washington Grove, MD 20880 United States Water 301-926-2256 300 Grove Ave Washington Grove, MD 20880 United States Sewer 301-926-2256 300 Grove Ave Washington Grove, MD 20880 United States Tax Collector 301-926-2256 300 Grove Ave Washington Grove, MD 20880 United States Code Enforcement 301-926-2256 300 Grove Ave Washington Grove, MD 20880 United States Town Hall Hours M,T,Th,F 9:30am-4:30 pm, W 1-4:30pm County Montgomery