Town Hall Address 19 W. Green St. Middletown, DE 19709 United States- New Castle County Website https://middletown.delaware.gov/ Zoning 302-378-2711 19 W. Green St. Middletown, DE 19709 United States Fire District (302) 378-7799 27 W Green ST Middletown, DE 19709 United States Town Clerk 302-378-2711 19 W. Green St. Middletown, DE 19709 United States Water 302-378-2211 431 Haveg Road Middletown, DE 19709 United States Sewer 302-378-2211 431 Haveg Road Middletown, DE 19709 United States Tax Collector 302-378-2711 19 W. Green St. Middletown, DE 19709 United States Code Enforcement 302-395-5555 87 Read's Way New Castle, DE 19720 United States County New Castle