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City Registrar Announces Voter Re-Registration Requirements for Those Who Have Not Voted Since 2021

May 22, 2026

The City of Portsmouth Board of Registrar of Voters has announced that Portsmouth voters who have not voted in the past five years and who have not registered since the 2024 State General Election must re-register to remain on the voter rolls. Per New Hampshire law, all municipalities in the State must verify voter checklists annually. The Board of Registrars will mail letters to those voters eligible for removal.

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Memorial Day Holiday Hours 2026

May 13, 2026
  • City Hall will be closed on Monday, May 25, reopening on Tuesday, May 26, from 8 am to 6 pm
  • The Portsmouth Public Library will be closed on Saturday, May 23 through Monday, May 25
  • The Department of Public Works trash and recycling collection o
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2026 Memorial Day Holiday Closures and Service Impacts

May 13, 2026

City facilities and services will be affected for the Memorial Day holiday which is observed Monday, May 25, 2026. 

Solid Waste Collection
There will be no trash and recycling pickup on Monday, May 25. Monday collection will be combined with Tuesday, May 26. 

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City Mosquito Control Program Monitoring Underway

April 14, 2026

The City of Portsmouth’s Mosquito Control Program began monitoring on April 8, 2026. The City has contracted with Dragon Mosquito Control, Inc. to check swamps, salt marshes, woodland pools, ditches, catch basins and other shallow, stagnant water for mosquito larvae. 

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DPW Hosts Household Hazardous Waste Collection Day on May 9, 2026

April 10, 2026

Department of Public Works will hold its semiannual Household Hazardous Waste Collection Day on Saturday, May 9, 2026 at the Public Works facility at 680 Peverly Hill Road. Residents of Portsmouth, Greenland, and Newington are encouraged to bring household chemicals for safe disposal between 8 am and 12 noon.