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

Explore 66 historic maps of Rockland County 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 Rockland County'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 Rockland County's history through authentic maps from the 1900s. This is your window into the past.

Rockland County, NY maps

(66)
  1. 1900 Map of Harlem
    1900 Map of Harlem
    1900 Harlem
    1900 Print · USGS
    Upper Manhattan and the surrounding boroughs are shown at a pivotal moment of growth before the mid-century building boom. Genealogists can trace family footprints through the streets of Yonkers Park or locate ancestors in the sprawling Woodlawn Cemetery.
    16 unique versions available
  4. 1901 Map of West Point
    1901 Map of West Point
    1901 West Point
    1901 Print · USGS
    The Hudson Highlands and West Point are shown at the turn of the century, when river railroads and mountain mines defined the local economy. Genealogists can trace family landmarks and hamlets like Nelsonville, Mahopac Mines, and Yorktown Heights.
    12 unique versions available
  7. 1902 Map of Tarrytown
    1902 Map of Tarrytown
    1902 Tarrytown
    1902 Print · USGS
    The Hudson River valley at the turn of the century shows a landscape of busy river landings and nascent suburbs. Genealogists and historians can trace old homesteads and landmarks like Waldberg Landing, the State Prison at Ossining, and the Croton Aqueduct.
    11 unique versions available
  10. 1902 Map of Schunemunk
    1902 Map of Schunemunk
    1902 Schunemunk
    1902 Print · USGS
    Orange County at the turn of the century shows a landscape defined by the rise of the railroad and the enduring presence of the Highlands. Genealogists and historians can trace old homesteads and industrial sites like Bull Mine, Oxford Depot, and the riverfront at Cornwall Landing.
    10 unique versions available
  13. 1910 Map of Ramapo
    1910 Map of Ramapo
    1910 Ramapo
    1910 Print · USGS
    The Ramapo Valley at the turn of the century served as a vital transit corridor between New York and New Jersey, dominated by rail lines and river industry. Genealogists and local historians can trace the foundations of Sloatsburg, Suffern, and Pearl River, alongside landmarks like the Ramapo Cem. and the Powder Works.
    6 unique versions available
  16. 1930 Map of Schunemunk
    1930 Map of Schunemunk
    1930 Schunemunk
    1930 Print · USGS
    Orange County's rail and river landscapes come into sharp focus during the late Prohibition era. Researchers can trace historic district schoolhouses like Elmwood No. 6 School and the critical junction points of the ERIE RR near Vails Gate Junction.
    3 unique versions available
  19. 1931 Map of Ramapo
    1931 Map of Ramapo
    1931 Ramapo
    1931 Print · USGS
    Rockland County in the late twenties and early thirties shows a unique mix of expanding suburban rail towns and state park wilderness. Genealogists and historians can trace Letchworth Village, the old Hogan Kamp Mine, and early schools like Bardonia Sch.
    3 unique versions available
  22. 1934 Map of Park Ridge
    1934 Map of Park Ridge
    1934 Park Ridge
    1934 Print · USGS
    Bergen County settlements were evolving into distinct residential hubs during the mid-1930s. Researchers can trace early infrastructure and local landmarks like Villa Maria Clare, the Western Reservoir, and the estates of Saddle River.
  25. 1935 Map of Schunemunk
    1935 Map of Schunemunk
    1935 Schunemunk
    1935 Print · USGS
    Orange County in the mid-1930s is a crossroads of heavy rail and Hudson River commerce. Genealogists and historians can trace defunct rail sidings, old school sites like Quaker Hill Sch, and industrial landmarks from Bull Mine to Firthcliffe.
    4 unique versions available
  28. 1936 Map of West Point
    1936 Map of West Point
    1936 West Point
    1936 Print · USGS
    The Hudson Highlands in the mid-1930s reveal a landscape of strategic military grounds and evolving state parks. Genealogists and historians can trace old family burial grounds like Halstead Cem, the workings of the Mahopac Mines, and the early layout of West Point.
    2 unique versions available
  31. 1936 Map of Ramsey
    1936 Map of Ramsey
    1936 Ramsey
    1936 Print · USGS
    Northern New Jersey during the mid-1930s shows a landscape of highland camps and expanding rail towns along the Erie RR. Trace family roots and local landmarks from Ramsey to Mahwah, including the Don Bosco Institute and Macmillan Reservoir.
  34. 1937 Map of Nyack
    1937 Map of Nyack
    1937 Nyack
    1937 Print · USGS
    Rockland County’s riverfront and wooded interior are shown here in the late 1930s as the rail-and-river economy remained in full swing. Genealogists and historians can trace family locations near the Rockland State Hospital, Piermont, and the St Catharines Cem.
  37. 1937 Map of Tarrytown
    1937 Map of Tarrytown
    1937 Tarrytown
    1937 Print · USGS
    The Hudson River valley during the 1930s serves as a busy corridor of rail, water, and infrastructure. Genealogists and local historians can trace the old landings at Waldberg Landing, the grounds of the State Prison in Ossining, and the rail lines through Nyack.
  40. 1938 Map of Haverstraw
    1938 Map of Haverstraw
    1938 Haverstraw
    1938 Print · USGS
    The lower Hudson River corridor comes alive in this late 1930s survey of the bustling industrial and commuter towns along the riverbanks. Researchers can trace the path of the West Shore RR, find family roots at St Peters Cem, or locate the New York Reconstruction Home.
  43. 1938 Map of Ramapo
    1938 Map of Ramapo
    1938 Ramapo
    1938 Print · USGS
    Rockland County in the late 1930s is revealed here as a landscape of institutional campuses, rail-side villages, and emerging parklands. Genealogists can trace family connections at Letchworth Village, St Agatha Home, and vanished hamlets like Sandyfield or Johnsontown.
    3 unique versions available
  46. 1939 Map of Park Ridge
    1939 Map of Park Ridge
    1939 Park Ridge
    1939 Print · USGS
    Northwestern Bergen County and the New York state line are captured here during a period of steady suburban development along the rail lines. Trace the early layout of Montvale and Park Ridge or locate landmarks like Zion Tabernacle and Woodcliff Lake.
    2 unique versions available
  49. 1940 Map of Ramsey
    1940 Map of Ramsey
    1940 Ramsey
    1940 Print · USGS
    Northern Bergen County in the late thirties is caught between its mountain wilderness and the rail-driven growth of the valley. Researchers can trace the Erie railroad line through Ramsey or locate historic estates and camps like Skylands and Camp Yaw-Paw.
    2 unique versions available
  52. 1940 Map of Nyack, 1952 Print
    1940 Map of Nyack, 1952 Print
    1940 Nyack
    1952 Print · USGS
    The Hudson River shoreline and Rockland County interior are captured here just before mid-century suburban expansion. Researchers can trace the extensive grounds of the Rockland State Hospital, the paths of the West Shore RR, and historic sites like Sneden Landing.
  55. 1941 Map of West Point
    1941 Map of West Point
    1941 West Point
    1941 Print · USGS
    The Hudson Highlands were undergoing significant change in the years leading up to the war, blending heavy industry with expanding military installations. Genealogists can trace family lines through Continental Village, Hillside Cem, and the various schools like Manitou Sch.
    3 unique versions available
  58. 1942 Map of Nyack
    1942 Map of Nyack
    1942 Nyack
    1942 Print · USGS
    The Hudson River riverfront and the high ridges of the Palisades define this area in the early years of the war. Researchers can trace the legacy of rail and river travel through the Tarrytown Ferry and the Erie RR, or locate family sites near Sneden Landing and Rockland State Hospital.
  61. 1943 Map of Haverstraw
    1943 Map of Haverstraw
    1943 Haverstraw
    1943 Print · USGS
    The Hudson River's wide reach at the Tappan Zee is documented here during the early years of the war. Researchers can trace local heritage through the Rockland Lighthouse, family-named landings like Snedeker Landing, and early aviation at Christie Airport.
    2 unique versions available
  64. 1943 Map of Nyack
    1943 Map of Nyack
    1943 Nyack
    1943 Print · USGS
    Southeastern Rockland County and the Bergen County border are shown in the early 1940s as riverfront villages and rail-dependent towns. Trace the sprawling grounds of the Rockland State Hospital or locate ancestors in Oak Hill Cemetery and Rockland Cemetery.
    2 unique versions available
  67. 1943 Map of Ramsey
    1943 Map of Ramsey
    1943 Ramsey
    1943 Print · USGS
    The Ramapo Valley comes into sharp focus during the 1940s as rail-side communities like Ramsey and Allendale expand along the Erie RR. Researchers can locate specialized sites from the Don Bosco Institute to high-altitude landmarks like Hawk Rock and Houvenkopf Mtn Sch.
    2 unique versions available
  70. 1945 Map of Park Ridge
    1945 Map of Park Ridge
    1945 Park Ridge
    1945 Print · USGS
    The New York and New Jersey borderlands at the end of the war show a maturing landscape of suburban towns and industrial centers. Researchers can trace local heritage through landmarks like Lederle Laboratories, St Anthonys Cem, and the Erie railroad stops.
    2 unique versions available
  73. 1945 Map of Ramsey
    1945 Map of Ramsey
    1945 Ramsey
    1945 Print · USGS
    The New York and New Jersey borderlands come alive in the mid-1940s, showing a region defined by the Ramapo Mountains and the busy Erie railroad. Trace family roots and local history through the streets of Ramsey, Suffern, and the Don Bosco Institute.
    2 unique versions available
Showing maps 1-25 of 66

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