Town Hall Address 121 Glen Road Wilmington, MA 01887 United States- Middlesex County Website http://www.wilmingtonma.gov/ Town Clerk 978-658-2030 https://www.wilmingtonma.gov/town-clerk United States Assessor 978-658-3675 https://www.wilmingtonma.gov/assessors-office Monday - Friday 8:30am - 4:30pm 121 Glen Road Wilmington, United States Tax Collector 978-658-3531 Monday - Friday: 8:30am to 4:30pm 121 Glen Road Wilmington, United States Fire District 978-658-3346 United States Water 978-658-4711 United States Town Hall Hours Monday - Friday 8:30am - 4:30pm County Middlesex