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New Castle, the only town in NH composed entirely of islands, covers approximately 500 acres (.8 square miles) and serves as a scenic residential and recreational community.  New Castle was founded in 1623, chartered in 1679, and incorporated in 1693 during the reign of William and Mary.  Today, in addition to a residential population of slightly more than 1,000, it is home to the Great Island Common recreational park, Wentworth-by-the-Sea Hotel and Spa, a UNH marine research laboratory, a Coast Guard station, and Fort Constitution and Fort Stark state parks.

Photos courtesy of Jim Cerny.

        NOTICES: :

  • Select Board Meeting at the Recreation Building (301 Wentworth Road)   Monday,  April 30, 2018 @ 7pm to discuss Warrant Articles on Water
  • Street Light Survey work being performed throughout New Castle on Thursday April 26th and Friday April 27th.
  • Click here for the most recent Water Study Report (March 01, 2018) and read about "Steps We Are Taking".
  • Maude H. Trefethen Elementary School update by David W. Latchaw, Principal
  •  Conservation Tree & Shrub Cutting Guidelines
  • May 1, 2018 - Non-resident passes go on sale at 8am at the Town Hall
  • May 1, 2018 - first day to accept Pavilion reservations for the Great Island Common
  • May 8, 2018 - Town meeting, voting from 9am to 7pm.  Business portion of the meeting at 7PM
  • May 8, 2018 - Bake sale to benefit the New Castle Library at polling - Recreation Building
  • May 12, 2018 - First Green Waste Day
  • May 16, 2018 - The Town Clerk's office will be closed that day for the saff to attend an all-day work shop

Need to contact the town office?
  • Phone 603-431-6710
  • Fax 603-433-6198
  • Great Island Common 603-436-1992 (Seasonal)
  • Email Us

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