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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.


  • Town Clerk Office will be closed on Wednesday, May 20th
  • Hydrant Flushing - Tuesday, May 2 from 8am to 4pm.  Water may be brown during this period of time.
  • All dogs must be licensed by May 1, 2015 for the current year
  • Resident stickers will be available starting on March 1st.  Please bring in your vehicle registration. Limited to three stickers per property.
  • Results of the Town Meeting on Tuesday, May 12:
  • Select Board Member                                     LibraryTrustee
  • Bill Sewart - 278                                               Jenny R. Rosenson - 387
  • Bill Cronin  -145
  •                                                                 Trustess of the Trust Fund
  • Treasurer                                                       Kathy Richards - 361
  • Thomas F. Smith - 294
  • Dennis G Dinsmore - 95                                  Tristee pf tje Trust Fund
  •                                                                 David McArdle - 358
  • Budget Committee
  • Thomas F. Smith - 268                                   Supervisor of the Checklist
  • Dennis G. Dinsmore - 122                                Claudia Wilbur
  • Cemetery Trustee                                                School Board Member
  • Terry Golter - 376                                              Ann Pinciaro - 366

  • RYE Recreation Spring and Summer Programs are available at the Town Hall

Need to contact the town office?
  • Phone 603-431-6710
  • Fax 603-433-6198
  • Email Us

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