Town Hall Address 2750 Dixwell Avenue Hamden, CT 06518 United States- New Haven County Website http://www.hamden.com Town Clerk 203-287-7028 United States Tax Collector 203-287-7140 United States Assessor 203-287-7128 http://gis.vgsi.com/hamdenct/ United States Building 203-287-7160 United States Zoning 203-287-7072 United States Water 203-776-3570 129 Church Street, 2nd Floor New Haven, CT 06510 United States Probate Court Hamden-Bethany (PD-37) Tax Adjustment Uniform Fiscal Year- July, January Indices Real property in General Index > Town taxes in Tax Lien Index > Sewer assessment in Sewer Lien Index Town Hall Hours Monday to Friday – 8:45 to 4:15 Water Source Greater New Haven Water Pollution Control Authority County New Haven