How a Long Island village transformed from a swampy hamlet into a maritime hub

Countries & Cities · Published 15 October 2026 · Updated 25 October 2026 Swipe more like this →

In short: Once known as Drowned Meadow, this North Shore village evolved from a quiet 17th-century settlement into a bustling shipbuilding powerhouse. Today, the town balances its industrial heritage with a thriving tourism economy, serving as a vital transportation link between Long Island and Connecticut across the waters of the Sound.

The area now known as Port Jefferson was originally settled in the 17th century, with the first home in the current downtown area built by John Roe in 1682. For much of its early history, the community remained small and rural, bearing the name Drowned Meadow until 1836. That year, local leaders initiated a major infrastructure project to stabilize the swampy harborfront by constructing a causeway, allowing the village to expand and adopt its current name in honor of Thomas Jefferson.

By the mid-19th century, the village had become the largest shipbuilding center in Suffolk County. The industry supported coastal freighting and even whaling, with shipyards lining the harbor. This era of prosperity was marked by the presence of grand hotels and the influence of figures like P.T. Barnum, who owned land in the village and later championed the establishment of the ferry service to Bridgeport in 1883. However, the shipbuilding era effectively ended in 1923 when the Bayles Shipyard was sold to an oil company and its facilities were largely demolished.

Following the decline of its primary industry, the village transitioned through periods of oil and gravel storage before reinventing itself as a tourist destination. Since its incorporation in 1963, the village has focused on revitalizing its waterfront. Projects like the redevelopment of former shipyards into public promenades and the creation of Harborfront Park have replaced industrial lots with recreational spaces. Today, the village is divided into two distinct sections: the tourism-focused Lower Port Jefferson at the waterfront and the historic Upper Port Jefferson near the railroad station, which first received train service in 1873.

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