Town Hall Address 31 W Main St Middletown, MD 21769 United States- Frederick County Website https://www.middletown.md.us/ Zoning 301-371-6171 Ext. 112 31 W Main St Middletown, MD 21769 United States Fire District (301) 371-6907 1 Firemans Lane Middletown, MD 21769 United States Town Clerk 301-371-6171 31 W Main St Middletown, MD 21769 United States Water 301-371-6171 31 W Main St Middletown, MD 21769 United States Sewer 301-371-6171 31 W Main St Middletown, MD 21769 United States Tax Collector 301-371-6171 31 W Main St Middletown, MD 21769 United States Code Enforcement 301-371-6171 31 W Main St Middletown, MD 21769 United States County Frederick