Stone Harbor Neighborhoods: A Small Borough Built South of Avalon
Stone Harbor is a borough in Cape May County, New Jersey, occupying the southern half of Seven Mile Island (also called Seven Mile Beach), which it shares with Avalon to the north. Per Wikipedia, the borough's total area is just 2.19 square miles — 1.42 square miles of land and 0.78 square miles of water — one of the smallest footprints of any market covered on this site. No confirmed list of officially named residential neighborhoods or subdivisions within Stone Harbor turned up in the research behind this page, so it does not invent one. What can be stated with confidence is the real history that shapes how the borough is organized today: a shared founding with Avalon through the 1887 Seven Mile Beach Company, a specific 1891 starting point near 80th Street, and the Stone Harbor Bird Sanctuary as a distinct, protected area within the borough's small footprint. This page walks through that history rather than naming subdivisions this research did not confirm.
Why This Page Does Not List Named Subdivisions
Some beach towns on this site have long-established, distinctly named neighborhoods, and those pages name them directly. The research behind this page did not turn up a confirmed list of official named residential subdivisions within Stone Harbor, and inventing one to make this page look more specific would be guessing dressed up as research — that is not how this page works.
What follows instead is the real organizing history that can be stated with confidence: Stone Harbor's shared origin with Avalon under the Seven Mile Beach Company, its own 1891 starting point, its compact 2.19-square-mile footprint, and the Bird Sanctuary as a genuinely distinct area within the borough. For parcel-specific questions, including which streets or blocks carry which informal local name, a local Stone Harbor real estate agent working the market regularly is the right source, and this page says so directly rather than pretending otherwise.
One Island, Two Towns: Stone Harbor and Avalon
Stone Harbor's founding cannot be separated from Avalon's. In 1887, the Seven Mile Beach Company purchased Seven Mile Island — after Aaron Leaming had acquired it back in 1772 for roughly $300, and the Tatham family had built the island's first beach houses in the 1800s — and the company founded both towns from that single corporate entity: Avalon on the island's northern half, Stone Harbor on its southern half.
That shared corporate founding means Stone Harbor and Avalon began as siblings, not strangers, even though each has developed its own separate identity, government, and character since. Avalon is covered in its own dedicated section of this site. A property described as being "in Stone Harbor" should specifically mean within the borough of Stone Harbor itself, on the island's southern half — a distinction worth confirming directly, since both towns sit on the same barrier island and share a founding company, which can blur the line from the outside.
Stone Harbor's Own Start: 1891 Near 80th Street
Stone Harbor's own development began in 1891 with an inn and seven cottages built near 80th Street, per visitnjshore.com's history of the borough. Major infrastructure work followed between 1907 and 1909 — leveling dunes, filling marshes, paving streets, building seawalls and jetties, and installing a sewage system — and 1910 to 1912 brought the borough's first school, lifeguard service, police force, and volunteer fire department.
Stone Harbor was officially incorporated as its own borough on April 3, 1914, formed from portions of Middle Township following a public referendum. The borough's own name is credited to an English sea captain named Stone, who reportedly took refuge behind Seven Mile Island during a severe storm — a namesake legend distinct from anything tied to Avalon's own name.
A Small Footprint With the Bird Sanctuary as Its Own Area
At 2.19 square miles total, Stone Harbor is a genuinely small borough, and its most distinct internal area is not a residential subdivision but the Stone Harbor Bird Sanctuary — a 21.5-acre protected site established by local ordinance in 1947 and designated New Jersey's first National Natural Landmark in October 1965, per Wikipedia. Herons began nesting there naturally around 1938, and by 1964 more than 5,000 birds arrived annually during nesting season. The sanctuary sits apart from the borough's residential blocks as its own protected area, near Nummy Island's salt-marsh feeding grounds, and includes dense vegetation, a freshwater pond and meadow, and maritime forest.
That combination — a compact 2.19-square-mile footprint with a dedicated, protected natural area inside it — is a real structural fact about how Stone Harbor is laid out, distinct from any claim about named residential neighborhoods this research did not confirm.
What to Confirm With a Local Agent
Because this page intentionally does not assert a list of named subdivisions, the practical questions that matter for a specific property — what a given street or block is actually called locally, how close a given address sits to the Bird Sanctuary versus the open beach, current zoning, and how a parcel relates to the borough's flood zones given its small size and water frontage — are exactly the kind of parcel-level detail a local Stone Harbor real estate agent working the market regularly can confirm, and that this research pass does not invent.
Also confirm current median home prices, active listing counts, current Cape May County or Borough of Stone Harbor property tax figures, New Jersey state sales tax rules, and current flood zone designations directly with a local agent, Cape May County government, the Borough of Stone Harbor's own finance office, and FEMA's Flood Map Service Center before relying on any of it for a purchase decision. New Jersey's tax structure, including its state sales tax, is genuinely different from the no-sales-tax framework used in other markets this site covers, and this page does not assume otherwise. Nothing on this page is legal, tax, or financial advice.
Ready to talk to a local Stone Harbor agent?
Get a Free Agent Referral →Independent research. No ads. No sponsored listings. Stone Harbor's location on the southern half of Seven Mile Island in Cape May County, New Jersey, its total area of 2.19 square miles (1.42 sq mi land, 0.78 sq mi water), and details of the Stone Harbor Bird Sanctuary — including its 1947 establishment by local ordinance, its 21.5-acre size, its October 1965 designation as New Jersey's first National Natural Landmark, herons nesting there naturally beginning around 1938, and more than 5,000 birds arriving annually by 1964 — are sourced from Wikipedia's Stone Harbor, New Jersey and Stone Harbor Bird Sanctuary entries. The 1887 founding of both Stone Harbor and Avalon by the Seven Mile Beach Company, Aaron Leaming's 1772 acquisition of Seven Mile Island, the Tatham family's 1800s purchase and first beach houses, Stone Harbor's own 1891 development near 80th Street, its 1907-1909 infrastructure work, its 1910-1912 civic institutions, its April 3, 1914 incorporation, and its namesake legend of an English sea captain named Stone are sourced from visitnjshore.com's history of Stone Harbor. Avalon is a separate incorporated borough covered in its own dedicated section of this site. No confirmed list of official named residential subdivisions for Stone Harbor, current median home price, current active listing count, or current property tax figure was found this research pass, and none is invented here. Confirm parcel-specific location details, informal area names, zoning, current listing activity, and current tax figures directly with a local Stone Harbor real estate agent, Cape May County government, the Borough of Stone Harbor, and FEMA's Flood Map Service Center. Nothing on this page is legal, tax, or financial advice.