Town Hall Address 1 First Street Seymour, CT 06483 United States- New Haven County Website http://www.seymourct.org Town Clerk 203-888-0519 https://www.uslandrecords.com/ctlr/ United States Tax Collector 203-888-0517 United States Assessor 203-881-5013 http://www.seymourgis.com/ United States Building 203-888-3545 United States Zoning 203-881-5007 United States Water 203-735-8087 United States Probate Court Derby (PD-41) Tax Adjustment Uniform Fiscal Year- July, January Indices General Index > real property > town taxes > sewer assessment Town Hall Hours Monday to Thursday – 8:00 to 4:30, Friday – 8:00 to 12:00 Water Source WPCA County New Haven