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New Castle hurricane guide

New Castle is the only town in New Hampshire made up entirely of islands, about 500 acres in Rockingham County, the state's coastal county, so coastal storm surge and flooding are the concern for hurricanes and tropical storms. The town has an Emergency Management department at its Public Safety Building and its own police and public works departments. Follow the Rockingham County page for state alerts.

Checked on October 10, 2026

Every phone number and web address on this page was checked against official sources on that date. Details can change, especially during a storm. Always follow instructions from the Town of New Castle. In a life threatening emergency, call 911.

Official website: newcastle.nh.gov

Emergency and information numbers

Service Number Notes
Town Hall 603-431-6710 Office line. Not for emergencies.
Police Department 603-436-3800 For police matters that are not emergencies.
Police dispatch (Rockingham County Sheriff) 603-436-3113 Dispatch center for all police calls, day and night.
Emergency management 603-436-1132 Public Safety Building office line. Not for emergencies.
Public works 603-766-3613 Roads, water, and sewer. Office line.

Official alerts and information

  • New Castle Emergency Management: The town's emergency management page. Website.

County services that cover New Castle

Rockingham County manages evacuation zones, evacuation centers, and emergency alerts for everyone who lives in New Castle. The Rockingham County guide has the full list of county numbers, radio stations, and recovery help.

  • NH Alerts: The state's emergency alert system. Sign up before a storm. Your town may also run its own alerts, so check your town site. Website.

Sources

Checked on October 10, 2026. If a number or address here is wrong, please tell us at Keith@KMyers.me.