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1940s Maps of Monroe County, Florida

Explore 15 historic maps of Monroe County 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 Monroe County'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 Monroe County's history through authentic maps from the 1940s. This is your window into the past.

Monroe County, FL maps

(15)
  1. 1943 Map of Bay Keys
    1943 Map of Bay Keys
    1943 Bay Keys
    1943 Print · USGS
    The shallow waters north of Key West are captured in the 1940s as a series of navigational channels and mangroves. Maritime researchers can trace early survey markers like Tidal Bm 2 and passages through Bay Keys and Bluefish Channel.
  4. 1943 Map of Saddlebunch Keys
    1943 Map of Saddlebunch Keys
    1943 Saddlebunch Keys
    1943 Print · USGS
    Monroe County’s island chain is captured during the war years as the modern overseas route was still taking shape. Maritime researchers can trace essential coastal markers like American Shoal Lighthouse and the early layout of Sugaloa Beach.
    2 unique versions available
  7. 1943 Map of Boca Chica
    1943 Map of Boca Chica
    1943 Boca Chica
    1943 Print · USGS
    The Lower Keys are captured here during the Second World War as modern infrastructure begins to reshape the archipelago. Researchers can trace the development of Boca Chica Airport and early roads connecting Stock Island, Big Coppitt Key, and the Sugar Loaf Club.
  10. 1943 Map of Key West
    1943 Map of Key West
    1943 Key West
    1943 Print · USGS
    Key West was a fortified maritime center during the war years, serving as a vital strategic link between the Gulf and the Atlantic. Researchers can locate military landmarks like Fort Taylor and Meacham Field, alongside old harbor features such as Key West Bight and Trumbo Island.
    3 unique versions available
  13. 1943 Map of Snipe Keys
    1943 Map of Snipe Keys
    1943 Snipe Keys
    1943 Print · USGS
    Monroe County's maritime landscape appears in high detail during the early 1940s, documenting the intricate network of islands and channels before modern development. Maritime researchers can trace historic landmarks like Old Dan Mangrove, Coon Key, and the navigational reaches of Turkey Basin.
    2 unique versions available
  16. 1943 Map of Sugarloaf Key
    1943 Map of Sugarloaf Key
    1943 Sugarloaf Key
    1943 Print · USGS
    The Florida Keys during the early 1940s are seen here as infrastructure begins to reshape the maritime landscape. Researchers can locate the settlement at Perky, trace the highway route under construction, and find landmarks at Pirates Cove.
    3 unique versions available
  19. 1943 Map of Cottrell Key, 1952 Print
    1943 Map of Cottrell Key, 1952 Print
    1943 Cottrell Key
    1952 Print · USGS
    Monroe County's lower islands are captured here during the 1940s, showing the remote coastal landscape as it existed before significant modern development. Maritime researchers can locate early navigational marks like the NW Passage Bn (Old Tower) and trace the natural shorelines of Boca Grande Key and Woman Key.
  22. 1947 Map of Garden Cove, 1964 Print
    1947 Map of Garden Cove, 1964 Print
    1947 Garden Cove
    1964 Print · USGS
    The upper Florida Keys are captured here in the late 1940s, showing a sparsely populated shoreline before the era of major resort development. Researchers can trace coastal landmarks like Garden Cove, the small settlement at Knowlson, and isolated inland waters such as Lake Surprise.
    3 unique versions available
  25. 1947 Map of Rock Harbor, 1965 Print
    1947 Map of Rock Harbor, 1965 Print
    1947 Rock Harbor
    1965 Print · USGS
    Upper Key Largo in the late 1940s reveals a string of small island settlements and coastal outposts before the era of major resort expansion. Genealogists and historians can trace the foundations of Rock Harbor, find local landmarks like St Margarets Ch, or locate the specific shorelines of Tarpon Basin and Largo Sound.
    4 unique versions available
  28. 1947 Map of Blackwater Sound, 1967 Print
    1947 Map of Blackwater Sound, 1967 Print
    1947 Blackwater Sound
    1967 Print · USGS
    The upper Florida Keys and the southeastern reaches of the Everglades are mapped here just after the war. Researchers can trace the early path of the Overseas Highway across Cross Key and locate early coastal landmarks like Jewfish Creek and Largo Point.
    3 unique versions available
  31. 1949 Map of Blackwater Sound
    1949 Map of Blackwater Sound
    1949 Blackwater Sound
    1949 Print · USGS
    The Upper Florida Keys appear here in the late 1940s, showing the early infrastructure of the Overseas Highway. Researchers can trace the original route through Cross Key and locate early coastal sites like Anglers Park and Jewfish Creek.
  34. 1949 Map of Rock Harbor
    1949 Map of Rock Harbor
    1949 Rock Harbor
    1949 Print · USGS
    Upper Key Largo in the late 1940s shows a landscape of small coastal settlements and crucial navigational markers. Trace the early footprints of Newport, Rock Harbor, and Sawyer alongside local landmarks like St Margarets Ch and the Intracoastal Waterway.
    2 unique versions available
  37. 1949 Map of Garden Cove
    1949 Map of Garden Cove
    1949 Garden Cove
    1949 Print · USGS
    The northern reaches of the Florida Keys are documented in the late 1940s, showing a landscape defined by small settlements and vital maritime markers. Researchers can trace early property sites like Knowlson and White, or locate coastal features such as Garden Cove and Rattlesnake Key.
    2 unique versions available
  40. 1949 Map of Card Sound
    1949 Map of Card Sound
    1949 Card Sound
    1949 Print · USGS
    Upper Key Largo and the sounds of Monroe County are shown here in the late 1940s before major modern expansion. Trace the early layout of the Key Largo Club, the settlement of Grayvik, and the natural labyrinth of Crocodile Lake and Angelfish Creek.
  43. 1949 Map of Pacific Reef
    1949 Map of Pacific Reef
    1949 Pacific Reef
    1949 Print · USGS
    The Florida Keys and the reef line appear just after the war as a network of critical maritime passages and navigational aids. Maritime historians can trace the deep-water Turtle Harbor Channel and locate the iconic Pacific Reef Lighthouse near Old Rhodes Key.
    2 unique versions available
End of results
Showing maps 1-15 of 15

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Frequently asked questions

  • What are the different types of historical maps available for Monroe County?
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