Town Hall Address 278 Old Sudbury Road Sudbury, MA 01776 United States- Middlesex County Website http://www.sudbury.ma.us/ Town Clerk 978-639-3351 https://sudbury.ma.us/clerk/ United States Assessor 978-639 - 3393 https://sudbury.ma.us/assessors/ Monday, Wednesday, Thursday: 8:30 am - 4:30 pm Tuesday: 8:30 am - 7:00 pm Friday: 8:30 am - 12:30 pm 278 Old Sudbury Road Sudbury, United States Tax Collector 978-639 - 3376 Monday, Wednesday, Thursday: 8:30 am - 4:00 pm Tuesday: 8:30 am - 7:00 pm Friday: 8:30 am - 12:30 pm 278 Old Sudbury Road Sudbury, United States Fire District 978-440 - 5301 United States Water 978- 440 - 5421 United States Town Hall Hours Monday, Wednesday, Thursday: 8:30 am - 4:00 pm Tuesday: 8:30 am - 7:00 pm Friday: 8:30 am - 12:30 pm County Middlesex