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1900s (20th Century) Maps of Brookhaven, New York

Explore 65 historic maps of Brookhaven from the 1900s (20th Century). These maps offer a rare glimpse into what life looked like during the 1900s — 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 Brookhaven's landscape evolved across the 1900s, 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 1900s, 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 Brookhaven's history through authentic maps from the 1900s. This is your window into the past.

Brookhaven, NY maps

(65)
  1. 1902 Map of Setauket, 1959 Print
    1902 Map of Setauket, 1959 Print
    1902 Setauket
    1959 Print · USGS
    Suffolk County’s north and south shores are captured here at the start of the twentieth century. Researchers can trace the Port Jefferson Branch rail lines, the grounds of the State Hospital, and the early layout of Setauket and Bohemia.
  4. 1902 Map of Fire Island, 1962 Print
    1902 Map of Fire Island, 1962 Print
    1902 Fire Island
    1962 Print · USGS
    The South Shore of Long Island is captured here at the dawn of the twentieth century, anchored by the Montauk Division rail line. Genealogists and maritime historians can locate early settlements like Oakdale and trace the vital network of Life-Saving Stations including Point O'Woods L.S.S. and Blue Point L.S.S. along the barrier beach.
  7. 1903 Map of Fire Island
    1903 Map of Fire Island
    1903 Fire Island
    1903 Print · USGS
    Long Island's southern shore and the outer barrier beach are captured here at the turn of the century. You can trace early coastal infrastructure through the Fire Island Lighthouse and life-saving stations like Lone Hill L.S.S. and Blue Point L.S.S..
    6 unique versions available
  10. 1903 Map of Riverhead, 1963 Print
    1903 Map of Riverhead, 1963 Print
    1903 Riverhead
    1963 Print · USGS
    The forks of Long Island come alive in this early 1900s survey of the bustling rail and maritime corridor. Researchers can trace the Long Island Railroad through historic hamlets like Good Ground, Aquebogue, and the early shoreline of Shinnecock Bay.
  13. 1904 Map of Setauket
    1904 Map of Setauket
    1904 Setauket
    1904 Print · USGS
    Suffolk County at the start of the century shows a North Shore landscape of maritime villages and inland rail depots. Genealogists can trace family names and institutions from Stony Brook to the State Hospital For The Insane and Patchogue.
    7 unique versions available
  16. 1904 Map of Islip
    1904 Map of Islip
    1904 Islip
    1904 Print · USGS
    Suffolk County at the start of the century reveals a landscape defined by deep north-shore harbors and the expansive Great South Bay. Genealogists and local historians can trace early rail lines through Kings Park and Stony Brook, or locate the sprawling State Hospital and St. Dominic Convent.
    5 unique versions available
  19. 1904 Map of Riverhead
    1904 Map of Riverhead
    1904 Riverhead
    1904 Print · USGS
    Eastern Long Island at the turn of the century shows a landscape of rail-connected hamlets and coastal vigilance. Researchers can trace the early layout of Riverhead or locate historic life-saving outposts like Tiana L.S.S. and Potunk L.S.S. along the barrier beaches.
    9 unique versions available
  22. 1904 Map of Moriches, 1912 Print
    1904 Map of Moriches, 1912 Print
    1904 Moriches
    1912 Print · USGS
    Coastal Suffolk County at the start of the century shows a landscape of quiet maritime landings and early railroad hamlets. Genealogists can trace the early footprints of Wardenclyffe, Middle Island, and the Life-Saving Stations protecting Fire Island.
    2 unique versions available
  25. 1919 Map of Setauket
    1919 Map of Setauket
    1919 Setauket
    1919 Print · USGS
    Long Island's north and south shores meet in this post-war tactical survey, documenting the transition from maritime villages to rail-linked townships. Genealogists and researchers can trace early century landmarks like the State Hospital for the Insane and the original Setauket Sta.
  28. 1920 Map of Bridgeport
    1920 Map of Bridgeport
    1920 Bridgeport
    1920 Print · USGS
    Coastal Connecticut comes alive in the early twentieth century as a hub of maritime commerce and industrial growth. Researchers can trace the development of Bridgeport and Milford, or locate specific landmarks like Charles Island and Beardsley Park.
  31. 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.
  34. 1943 Map of Riverhead
    1943 Map of Riverhead
    1943 Riverhead
    1943 Print · USGS
    Long Island's eastern forks appear here in the early twentieth century as a landscape of coastal hamlets and maritime commerce. Trace the path of the Montauk Division railroad through RIVERHEAD or locate family roots in Mattituck, Speonk, and Good Ground.
  37. 1944 Map of Bay Shore East
    1944 Map of Bay Shore East
    1944 Bay Shore East
    1944 Print · USGS
    The Long Island shoreline near Bay Shore and Islip is captured here during the 1940s. Researchers can trace the development of barrier island communities like Ocean Beach and Point O' Woods or locate the historic Fire Island Coast Guard station.
  40. 1947 Map of St James
    1947 Map of St James
    1947 St James
    1947 Print · USGS
    The North Shore of Long Island is captured here in the years following the war, featuring the intricate tidal marshlands of Smithtown Bay. Genealogists and historians can trace the grounds of the Kings Park State Hospital for the Insane and the residential clusters at St. James and Stony Brook.
    2 unique versions available
  43. 1947 Map of Bellport
    1947 Map of Bellport
    1947 Bellport
    1947 Print · USGS
    The South Shore of Long Island in the late 1940s is shown here at the cusp of significant change. Genealogists and historians can trace rail-era landmarks like Yaphank Sta, the Suffolk County Alms House & Childrens Home, and the Camp Upton Military Reservation.
  46. 1947 Map of Howells Point
    1947 Map of Howells Point
    1947 Howells Point
    1947 Print · USGS
    The South Shore of Long Island is documented here in the late forties, showing the vulnerable barrier beach system before modern development. Researchers can trace the early residential layout of Brookhaven and the natural state of Great South Beach and Ridge Island.
  49. 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.
  52. 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.
  55. 1947 Map of Sayville
    1947 Map of Sayville
    1947 Sayville
    1947 Print · USGS
    The South Shore of Long Island is captured here in the late 1940s, showing a landscape of maritime villages and coastal retreats. Researchers can trace the development of Sayville and Bayport or locate remote landmarks like Cherry Grove and the Blue Point CG on the barrier beach.
  58. 1947 Map of Riverhead
    1947 Map of Riverhead
    1947 Riverhead
    1947 Print · USGS
    Riverhead and the Peconic River valley are captured here just after the war, showing the area's transition from agricultural heartland to a regional hub. Researchers can trace the Long Island Railroad route, family-named roads like Osborn Ave, and local sites like the LI Research Veg Farm.
  61. 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.
  64. 1947 Map of Eastport
    1947 Map of Eastport
    1947 Eastport
    1947 Print · USGS
    Coastal Suffolk County thrives along the Atlantic shore in the years following World War II, when rail and road first began to transform these fishing and farming hamlets. Genealogists and historians can trace the early layouts of Eastport, Speonk, and Westhampton Beach alongside the Long Island Railroad.
  67. 1947 Map of Middle Island
    1947 Map of Middle Island
    1947 Middle Island
    1947 Print · USGS
    Mid-century Brookhaven comes to life as residential communities began to expand along the northern bluffs and the Port Jefferson railroad line. Researchers can trace the massive circular footprint of the RCA Radio Station and the boundary of the Camp Upton Military Reservation near Artist Lake.
    2 unique versions available
  70. 1947 Map of Hartford, 1955 Print
    1947 Map of Hartford, 1955 Print
    1947 Hartford
    1955 Print · USGS
    Southern New England and the Hudson Valley are shown in detail during the post-war expansion era. Genealogists and researchers can trace local landmarks from the State Capitol and Yale University to the Stratford Lighthouse and Woodlawn Cem.
    2 unique versions available
  73. 1948 Map of Hartford
    1948 Map of Hartford
    1948 Hartford
    1948 Print · USGS
    Southern New England is captured here in the late 1940s, showcasing a landscape of thriving industrial cities and developing parkways. Genealogists and historians can trace the rail networks of the New York New Haven and Hartford RR or locate coastal defense sites like Fort Terry and Camp Shanks.
    2 unique versions available
Showing maps 1-25 of 65

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