Town Hall Address 1 Junkins Ave Portsmouth, NH 03801 United States- Rockingham County Website http://www.cityofportsmouth.com/ Town Clerk (603) 610-7245 https://www.cityofportsmouth.com/cityclerk Mon 8 A.M. - 6 P.M.; Tue - Thu 8 A.M. - 4:30 P.M.; Fri 8 A.M. - 1 P.M.) 1 Junkins Ave Portsmouth, NH 03801 United States Tax Collector (603) 610-7244 Monday 8:00 AM - 6:00 PM Tuesday - Thursday 8:00 AM - 4:30 PM Friday 8:00 AM - 1:00 P 1 Junkins Ave Portsmouth, NH 03801 United States Assessor (603) 610-7249 http://gis.vgsi.com/portsmouthnh/ Monday 8 AM – 6 PM Tuesday – Thursday 8 AM – 4:30 PM Friday 8 AM – 1 PM 1 Junkins Ave, 2nd Floor Portsmouth, NH 03801 United States Building (603) 610-7261 1 Junkins Ave Portsmouth, 03801 United States Zoning (603) 319-8039 18 McDongough St Portsmouth, NH 03801 United States Fire District (603) 427-1515 170 Court St Portsmouth, NH 03801 United States Water (603) 766-1420 680 Peverly Hill Rd Portsmouth, NH 03801 United States Town Hall Hours Mon 8 A.M. - 6 P.M.; Tue - Thu 8 A.M. - 4:30 P.M.; Fri 8 A.M. - 1 P.M.) County Rockingham