Town Hall Address 740 West Boston Post Road Mamaroneck, NY 10543 United States- Westchester County Website http://www.townofmamaroneck.org/ County Clerk Timothy C. Idoni 914-995-3081 Mon - Fri, 8am - 5pm 110 Dr. Martin Luther King Jr. Blvd White Plains, NY 10601 United States Town Clerk 914-381-7870 Monday - Friday 8:30 a.m. - 4:30 p.m. 740 West Boston Post Road Mamaroneck, NY 10543 United States Tax Collector 914-381-7860 Monday - Friday 8:30 a.m. - 4:30 p.m. 740 West Boston Post Road Mamaroneck, NY 10543 United States Assessor 914-381-7820 740 West Boston Post Road Mamaroneck, NY 10543 United States Code Enforcement 914-381-7830 740 West Boston Post Road Mamaroneck, NY 10543 United States County Westchester