Town Hall Address 795 Massachusetts Avenue Cambridge, MA 02139 United States- Middlesex County Website http://www.cambridgema.gov/ Town Clerk 617-349-4000 http://www.cambridgema.gov/Departments/cityclerksoffice United States Assessor 617-349-4343 http://www.cambridgema.gov/Departments/Assessing Mon: 8:30 to 8:00 Tues, Wed, Thurs: 8:30 to 5:00 Fri: 8:30 to 12:00 795 Mass. Ave. Cambridge, United States Tax Collector Mon: 8:30 to 8:00 Tues, Wed, Thurs: 8:30 to 5:00 Fri: 8:30 to 12:00 795 Mass Ave Cambridge, United States Fire District 617-349-4900 United States Water 617-349-4770 United States Town Hall Hours Mon: 8:30 to 8:00 Tues, Wed, Thurs: 8:30 to 5:00 Fri: 8:30 to 12:00 County Middlesex