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1900s (20th Century) Maps of Saint Mary's County, Maryland

Explore 88 historic maps of Saint Mary's 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 Saint Mary's 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 Saint Mary's County's history through authentic maps from the 1900s. This is your window into the past.

Saint Mary's County, MD maps

(88)
  1. 1901 Map of Drum Point
    1901 Map of Drum Point
    1901 Drum Point
    1901 Print · USGS
    The maritime heart of the lower Chesapeake Bay comes alive in this turn-of-the-century survey of the Calvert and St. Mary’s coastline. Genealogists and historians can trace old landings and light stations like Millstone Landing, Spencers Wharf, and the Drum Pt. L.H. at the mouth of the Patuxent River.
  4. 1901 Map of Prince Frederick
    1901 Map of Prince Frederick
    1901 Prince Frederick
    1901 Print · USGS
    The Tidewater region of Maryland is captured here at the dawn of the twentieth century, when river travel and steamship wharves still defined the local economy. Researchers can locate vanished landings and ferry crossings like Magruder Ferry, Leitch Wharf, and Lower Marlboro.
  7. 1901 Map of Leonardtown
    1901 Map of Leonardtown
    1901 Leonardtown
    1901 Print · USGS
    Maryland's tidewater country at the turn of the century is defined by its deep reliance on the river and bay. Genealogists and historians can trace the vital maritime economy through old landings and wharves like Sotterly Wharf, Abells Wharf, and Coburns Wharf.
    3 unique versions available
  10. 1901 Map of Piney Point
    1901 Map of Piney Point
    1901 Piney Point
    1901 Print · USGS
    The Potomac River tidewater at the opening of the twentieth century was a landscape of remote landings and river-bound commerce. Researchers can trace historic ferry crossings at Mount Holly, find the L.H. at Piney Point, or locate old mill sites like Clifton Mills.
    5 unique versions available
  13. 1902 Map of Wicomico
    1902 Map of Wicomico
    1902 Wicomico
    1902 Print · USGS
    Coastal Maryland at the turn of the century shows a landscape tied to the tides and the tracks. Trace the vital waterfront economy through Ludlow Ferry and Plowdens Wharf, or follow the path of the Southern Maryland R. R. past Charlotte Hall.
    5 unique versions available
  16. 1903 Map of Bloodsworth Island
    1903 Map of Bloodsworth Island
    1903 Bloodsworth Island
    1903 Print · USGS
    Coastal life in the Dorchester County marshes is preserved here at the turn of the century. Genealogists and maritime historians can trace the early layout of Applegarth and Holland Island alongside landmarks like Hooper Strait L.H.
    3 unique versions available
  19. 1905 Map of Drum Point
    1905 Map of Drum Point
    1905 Drum Point
    1905 Print · USGS
    The Chesapeake Bay shoreline at the turn of the century shows a landscape defined by deep-water landings and remote island settlements. Genealogists and maritime historians can trace early wharves and landings like Spencers Wharf, Millstone Landing, and the village of Solomons.
    4 unique versions available
  22. 1906 Map of St. Marys
    1906 Map of St. Marys
    1906 St. Marys
    1906 Print · USGS
    Chesapeake Bay and the Potomac River converge in this 1906 survey of the Maryland and Virginia tidewater. Historians can trace the region's maritime heritage through dozens of named landings and islands, from Solomons Id. to the remote reaches of Smith Island.
    4 unique versions available
  25. 1906 Map of Patuxent
    1906 Map of Patuxent
    1906 Patuxent
    1906 Print · USGS
    The Tidewater region of Maryland and the outskirts of the District of Columbia are shown here at the turn of the century. Researchers can trace the early footprints of Maryland Agril. College, find riverfront infrastructure at Milltown Landing, and follow long-established routes like the Marlboro Turnpike.
    4 unique versions available
  28. 1910 Map of Prince Frederick
    1910 Map of Prince Frederick
    1910 Prince Frederick
    1910 Print · USGS
    Coastal Calvert County comes alive in the early twentieth century, showing a landscape defined by the Patuxent River and the bay. Genealogists can trace old wharves and family settlements from Lower Marlboro to the Chesapeake Beach RR line.
    3 unique versions available
  31. 1911 Map of Wicomico, 1961 Print
    1911 Map of Wicomico, 1961 Print
    1911 Wicomico
    1961 Print · USGS
    Southern Maryland's river-dependent landscape is documented here during the early twentieth century, showing the tidewater border of Charles and St Marys counties. Genealogists can trace family-named points and wharves like Lancaster Wharf, the Laidlow Ferry, and the rail terminus at Popes Creek.
  34. 1911 Map of Brandywine, 1962 Print
    1911 Map of Brandywine, 1962 Print
    1911 Brandywine
    1962 Print · USGS
    Southern Maryland at the turn of the century shows a landscape of rail-connected farming towns and expansive wetlands. Researchers can trace ancestral locations near LA PLATA, the old Reform School, or country parishes like St Peters Church and Piney Church.
  37. 1912 Map of Point Lookout
    1912 Map of Point Lookout
    1912 Point Lookout
    1912 Print · USGS
    Southern St. Mary's County appears here just after the turn of the century, showing a waterfront economy dependent on the river and bay. Genealogists and historians can trace family landings at Broomes Wharf and Miller Wharf or locate old settlements like St Inigoes and Great Mills.
    2 unique versions available
  40. 1913 Map of Brandywine
    1913 Map of Brandywine
    1913 Brandywine
    1913 Print · USGS
    Southern Maryland at the turn of the century shows a landscape transitioning through early rail and rural growth. Genealogists can trace family roots through landmarks like St Peters Church, Winkler Shop School, and old stops such as Malcolm Woodville Station.
    3 unique versions available
  43. 1914 Map of Wicomico
    1914 Map of Wicomico
    1914 Wicomico
    1914 Print · USGS
    Southern Maryland's riverfront life is captured here during the early twentieth century, showing a landscape of tidal creeks and busy steamboat landings. Genealogists can trace family footprints near Charlotte Hall, find old crossings like Ludlow Ferry, or locate historic maritime hubs like Bushwood Wharf.
    4 unique versions available
  46. 1917 Map of Heathsville
    1917 Map of Heathsville
    1917 Heathsville
    1917 Print · USGS
    Northumberland County's peninsulas and maritime crossroads are intricately detailed here during the late 1910s. Local researchers can trace family roots through historic landmarks like Macedonia Church, Coan Hall School, and the busy waters of the Steamboat Route at Reedville.
    4 unique versions available
  49. 1917 Map of Ewell
    1917 Map of Ewell
    1917 Ewell
    1917 Print · USGS
    Isolated island life in the Chesapeake comes into focus during the early twentieth century. Researchers can trace the original footprints of Ewell, Rhodes Point, and Tangier, alongside maritime landmarks like the Smith Point LH and old Steamboat Routes.
    2 unique versions available
  52. 1920 Map of Wicomico
    1920 Map of Wicomico
    1920 Wicomico
    1920 Print · USGS
    The Potomac and Wicomico riverfronts appear here as they were just after the Great War, when steamboat wharves and ferries still anchored local commerce. Trace the old rail lines to Bel Alton Cox Sta or locate long-standing landmarks like Charlotte Hall and Ludlow Ferry.
  55. 1930 Map of Wakefield
    1930 Map of Wakefield
    1930 Wakefield
    1930 Print · USGS
    Westmoreland County and the Northern Neck appear here in the early thirties, defined by a historic riverfront landscape and rural hamlets. Researchers can locate the Birthplace of Washington and Monroe Birthplace alongside old river ports like Leedstown and Steve Landing.
  58. 1932 Map of Wakefield
    1932 Map of Wakefield
    1932 Wakefield
    1932 Print · USGS
    Westmoreland County at the start of the 1930s shows a landscape defined by the great bends of the Potomac and Rappahannock Rivers. Researchers can trace ancestral locations near the George Washington Birthplace or find local landmarks like Potomac Mills and Monroe Hall.
    2 unique versions available
  61. 1936 Map of Leonardtown
    1936 Map of Leonardtown
    1936 Leonardtown
    1936 Print · USGS
    St. Mary's County wharves and rural parishes are captured in detail during the mid-1930s. Genealogists can trace family footprints at Old All Faith Ch, identify old school sites like Maryland Springs Sch, or locate historic landings such as Williams Wharf.
  64. 1937 Map of Point Lookout, 1958 Print
    1937 Map of Point Lookout, 1958 Print
    1937 Point Lookout
    1958 Print · USGS
    The tip of St. Mary's County appears here in the late thirties, where the Potomac meets the Chesapeake. Genealogists can trace family footprints through historic landings like Broomes Wharf and settlements such as St Inigoes and Drayden.
    2 unique versions available
  67. 1938 Map of Prince Frederick
    1938 Map of Prince Frederick
    1938 Prince Frederick
    1938 Print · USGS
    Calvert County at the height of the 1930s reveals a Maryland landscape defined by tobacco farming and bay-front resorts. Researchers can locate vanished rural landmarks like the Cedar Hill Sch, explore the wharves at Deep Landing, or trace the early layout of Chesapeake Beach.
    3 unique versions available
  70. 1939 Map of Leonardtown
    1939 Map of Leonardtown
    1939 Leonardtown
    1939 Print · USGS
    Southern Maryland's river-oriented landscape is captured here in the late 1930s, centered on the community of Leonardtown. Genealogists can trace family roots through numerous country schools and landmarks like Bannaker Sch, St Andrews Ch, and the many landings along the Patuxent River.
    3 unique versions available
  73. 1942 Map of Drum Point
    1942 Map of Drum Point
    1942 Drum Point
    1942 Print · USGS
    The Chesapeake Bay shoreline in the early 1940s reveals a world of maritime activity and isolated coastal communities. Genealogists and local historians can trace the foundations of Solomons, locate Spencers Wharf, and explore the marshes of Taylors Island.
Showing maps 1-25 of 88

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Frequently asked questions

  • What are the different types of historical maps available for Saint Mary's County?
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