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1940s Maps of Lake Grove, Brookhaven

Explore 5 historic maps of Lake Grove 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 Lake Grove'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 Lake Grove's history through authentic maps from the 1940s. This is your window into the past.

Lake Grove, Brookhaven maps

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  1. 1942 Map of Islip, 1943 Print
    1942 Map of Islip, 1943 Print
    1942 Islip
    1943 Print · USGS
    Central 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.
  4. 1947 Map of Port Jefferson
    1947 Map of Port Jefferson
    1947 Port Jefferson
    1947 Print · USGS
    Mid-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.
  7. 1947 Map of Central Islip
    1947 Map of Central Islip
    1947 Central Islip
    1947 Print · USGS
    Suffolk County is captured in the mid-1940s as institutional grounds and early aviation hubs began to reshape the Long Island interior. Researchers can trace the sprawling grounds of the Central Islip State Hospital and the early layout of Islip Airport.
  10. 1947 Map of Patchogue
    1947 Map of Patchogue
    1947 Patchogue
    1947 Print · USGS
    Central Suffolk County is documented just after the war, showing the distinct village identities of the south shore and the rural interior. Trace local genealogy and property development through the street grids of Patchogue, Bohemia, and the rail-oriented Ronkonkoma.
  13. 1949 Map of New York, 1951 Print
    1949 Map of New York, 1951 Print
    1949 New York
    1951 Print · USGS
    Long 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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Frequently asked questions

  • What are the different types of historical maps available for Lake Grove?
  • What is the oldest map of Lake Grove?
  • Where can I purchase historical maps of Lake Grove for my home or office?
  • Where can I download high-res historical maps of Lake Grove?
  • Are there historical topographic maps available for Lake Grove?
  • Is there historical aerial imagery available for Lake Grove?
  • Where are historical maps of Lake Grove sourced from?