Town Hall Address 472 Main Street Acton, MA 01720 United States- Middlesex County Website https://www.acton-ma.gov/ Town Clerk 978-929-6620 https://www.acton-ma.gov/381/Town-Clerk United States Assessor 978-929-6621 https://www.acton-ma.gov/134/Assessor Monday - Friday: 8:00 AM - 5:00 PM 472 Main Street Acton, United States Tax Collector 978-929-6623 Mon-Fri: 8:00 to 5:00 472 Main Street Acton, United States Fire District 978-929-7722 United States Water 978-263-9107 United States Town Hall Hours Mon-Fri: 8:00 to 5:00 County Middlesex