1940s Maps of Port Jefferson, Brookhaven
Explore 3 historic maps of Port Jefferson from the 1940s. These maps offer a rare glimpse into what life looked like during the 1940s — showing old roads, neighborhoods, homes, and landmarks that have changed or disappeared over time.
Whether you're researching your family's past, planning a metal detecting trip, or studying how Port Jefferson's landscape evolved across the 1940s, these high-resolution maps are a powerful tool for exploring the history of this region.
- Focus on a specific era: All maps on this page are from the 1940s, giving you a focused view of this time period.
- See what’s changed: Compare century-old streets, trails, and buildings to today's modern landscape using overlays and satellite layers.
- Research with precision: Use these maps for genealogy, historical research, land use analysis, or educational projects.
- View, download, or print: Maps are fully viewable online in high resolution, and can be downloaded or printed for your own records.
Start exploring Port Jefferson's history through authentic maps from the 1940s. This is your window into the past.
Port Jefferson, Brookhaven maps
(3)- 1942 Map of Islip, 1943 Print
1942 Islip1943 Print · USGSCentral Suffolk County is shown during the early years of the war, as the automobile began to reshape the distance between historic North Shore harbors and the South Shore bays. Researchers can trace the path of the Long Island Motor Parkway, locate family plots at Pinelawn Cem, and identify coastal landmarks like Eaton Neck L H. - 1947 Map of Port Jefferson
1947 Port Jefferson1947 Print · USGSMid-century coastal Long Island comes into focus in this study of the North Shore harbors just after the war. Researchers can trace the waterfront development of Port Jefferson and identify early land use in Setauket, Mount Sinai, and Belle Terre. - 1949 Map of New York, 1951 Print
1949 New York1951 Print · USGSLong Island and its surrounding waters are documented here in the late 1940s, just as the postwar suburban boom began to transform the region. Genealogists and historians can trace the early layouts of Idlewild Airport, Mitchell Field, and the established routes of the Long Island RR.
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