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One of the Most Historic Communities in New Hampshire 

As you’ll see from the sign that greets you when you drive into New Castle, New Hampshire, this very quaint and charming island community dates back to the early 1600s. In fact, staying true to its roots, there are a number of original homes in this coastal community that are still inhabited to this day.

The winding historic streets of New Castle are lined with stunning antique homes and gorgeous waterfront views of the Piscataqua River, giving a modern day peek of what life back then might have been like.


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Looking for homes in New Hampshire's coastal communities? Take a peek at all properties available in New Castle below. If you see a listing you like, contact us and we'll take you on a tour!


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A view of the Great Bay National Estuarine Research Reserve between tall pine trees as the sun sets.

Originally founded in 1623, this cozy community now serves as recreational and tranquil residential community. Known originally as "The Great Island", New Castle was the largest of several islands in the mouth of the Piscataqua River. New Castle is connected to the 'mainland' of New Hampshire via the causeway to Portsmouth and a drawbridge to Rye.

The current population of New Castle is about 1,100 residents, giving it a population density of about 1,276 people per square mile. Island residents love seaside living, and many activities and events are centered around being outdoors.  Great Island Common, a beloved local park, often serves as the epicenter of activity for visitors and residents alike.

Why You'll Love to Call New Castle Home:

New Castle has excellent local schools

New Castle residents have their own elementary school, Maude H. Trefethen Elementary School, which is currently ranked the best public elementary school within the state of New Hampshire. Serving students from kindergarten to sixth grade, students then move off the island to Portsmouth or Rye for middle school and high school.

A Tight-Knit Community

This coastal community is not only known for its wonderful amenities and scenic views, but the friendly residents that create a vibrant local culture. With many events hosted throughout the year, the town of New Castle and surrounding communities encourage natives and residents alike to celebrate life with food, fun, and entertainment.

Get to know your neighbors at local traditions such as the 7th Annual Evening by the Sea Event and 5th Annual Freecoast Festival.

Adventures for Every Age

With such a unique location, it comes as no surprise that the residents of the community spend most of their days outdoors! Enjoy a wide array of recreational activities including hiking, biking, and kayaking during the summer and sledding and tubing in the winter.


Looking to delve deeper in to New Castle’s past? Take a day trip to one of the historic landmarks of New Castle! Dating back to the 1600s, this area offers plenty of unique attractions to explore from the Portsmouth Harbor Lighthouse to the living history museum of Strawberry Banke.

Perfectly Located

Although it is an island, modern conveniences have made it easy to travel to the surrounding areas and communities of New Castle. Take a quick drive across the bridge to be transported to the picturesque community of Portsmouth, which offers unique attractions of its own. Only an hour away, travel to Concord, New Hampshire to see the planetarium at the famous McAuliffe-Shepard Discovery Center.

Talk To The Local Experts

Once you're here, you can't help but fall in love with everything this community has to offer. We are so grateful to live and work in this amazing area, so we can't wait to introduce you to New Castle and the entire New Hampshire Seacoast.

If you're considering buying or selling a home in New Castle, contact us. As longtime Portsmouth residents and experienced local Realtors, we have a wealth of resources about everything from moving tips to ways to increase your home's value. Let's talk.

Call or text us at 603-436-1221.

NERENCopyright ©2018 The New England Real Estate Network, Inc. All rights reserved. This information is deemed reliable, but not guaranteed. The data relating to real estate displayed on this Site comes in part from the IDX Program of NEREN. The information being provided is for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Data last updated 08/20/18 12:15 AM

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