1947 Map of Port Jefferson

Transportation networks are firmly established by the Long Island Railroad (Port Jefferson Branch) terminating near the harbor and the Port Jefferson-Patchogue Road stretching south. The map documents the residential patterns of established communities such as Setauket, East Setauket, and Mount Sinai before the more intensive suburban expansion of later decades. Educational and social infrastructure is evident through the inclusion of the Hospital and local schools scattered across the rolling North Shore terrain.