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1900s (20th Century) Maps of Portland, Maine

Explore 34 historic maps of Portland 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 Portland'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 Portland's history through authentic maps from the 1900s. This is your window into the past.

Portland, ME maps

(34)
  1. 1914 Map of Portland
    1914 Map of Portland
    1914 Portland
    1914 Print · USGS
    Coastal Maine at the start of the twentieth century shows a landscape tied together by industrial rivers and an expanding network of electric railroads. Genealogists can locate family names at Hillside Cemetery or trace old rural schoolhouses like the Babb School and Beech Ridge School.
  4. 1914 Map of Casco Bay
    1914 Map of Casco Bay
    1914 Casco Bay
    1914 Print · USGS
    Cumberland County's coastline and islands are shown in 1914, featuring a landscape of active coastal defenses and bustling maritime travel. Researchers can locate prominent landmarks such as Fort Mc Kinley, the Portland Head Light, and various steamer stops like Eastern Landing.
  7. 1916 Map of Portland
    1916 Map of Portland
    1916 Portland
    1916 Print · USGS
    Greater Portland and the Cumberland County coast are documented here during the height of the trolley and rail era. Researchers can trace ancestral property near the Evergreen Cemetery, early industries at Cumberland Mills, and vanished local sites like the State Reform School.
    7 unique versions available
  10. 1916 Map of Casco Bay
    1916 Map of Casco Bay
    1916 Casco Bay
    1916 Print · USGS
    Cumberland County’s shoreline was a landscape of strategic military forts and busy steamboat landings in the years before the Great War. Genealogists and historians can trace coastal heritage through landmarks like Fort Williams, Pine Grove School, and the scattered piers of Falmouth Foreside.
    8 unique versions available
  13. 1916 Map of Portland And Vicinity
    1916 Map of Portland And Vicinity
    1916 Portland And Vicinity
    1916 Print · USGS
    Coastal Maine at the start of the Great War reveals a landscape of heavy coastal fortifications and bustling rail terminals. Trace old neighborhood boundaries and family landmarks like Milliken Mills, Hillside Cemetery, and the Portland Head lighthouse.
  16. 1918 Map of Portland And Vicinity, 1926 Print
    1918 Map of Portland And Vicinity, 1926 Print
    1918 Portland And Vicinity
    1926 Print · USGS
    Coastal Maine at the height of the Great War reveals a landscape of harbor forts, railroad junctions, and seaside settlements. Genealogists and historians can trace family roots through labels for Evergreen Cemetery, Spurwink Church, and dozens of rural schoolhouses like Babb School.
  19. 1919 Map of Small Point
    1919 Map of Small Point
    1919 Small Point
    1919 Print · USGS
    The Maine coastline at the mouth of the Kennebec is captured in this era of transition, detailing the rocky islands and harbors of the outer Casco Bay. Genealogists and maritime historians can trace coastal settlements at Popham Beach and Bailey Island, or locate landmarks like Seguin Light and Small Pt Harbor.
  22. 1941 Map of Casco Bay
    1941 Map of Casco Bay
    1941 Casco Bay
    1941 Print · USGS
    Casco Bay and its vital harbor defenses are captured here just as the nation prepared for war. Military historians and genealogists can locate Fort McKinley and Fort Williams alongside local landmarks like Pine Grove Sch.
  25. 1941 Map of Portland
    1941 Map of Portland
    1941 Portland
    1941 Print · USGS
    Coastal Maine at the start of the 1940s reveals a bustling corridor of river mills and seaside settlements. Genealogists and historians can trace family roots through numerous local schools and landmarks like Cumberland Mills, Spurwink Ch, and Prouts Neck.
  28. 1944 Map of Portland East
    1944 Map of Portland East
    1944 Portland East
    1944 Print · USGS
    Casco Bay was a fortified maritime hub during the 1940s, balancing naval defense with thriving island communities. Researchers can trace coastal military history through Fort McKinley and Fort Gorges, or find family landmarks in Falmouth Foreside and Peak Island.
    2 unique versions available
  31. 1944 Map of Small Point
    1944 Map of Small Point
    1944 Small Point
    1944 Print · USGS
    The Maine coastline during the early 1940s reveals a maritime landscape of isolated peninsulas and island fishing communities. Genealogists and coastal historians can trace the foundations of Popham Beach, explore the landing at West Point, and locate family landmarks from Bailey Island to Morse Mountain.
    3 unique versions available
  34. 1944 Map of South Harpswell
    1944 Map of South Harpswell
    1944 South Harpswell
    1944 Print · USGS
    The Maine coast in the mid-1940s reveals a world defined by the tides and steamer travel across Mericoneag Sound. Trace family property or maritime history near South Harpswell, Bailey Island, or the remote Halfway Rock Lighthouse.
  37. 1944 Map of Cape Elizabeth
    1944 Map of Cape Elizabeth
    1944 Cape Elizabeth
    1944 Print · USGS
    Cumberland County’s shoreline at the height of the Second World War shows a coastal landscape balanced between maritime defense and local community life. Genealogists and historians can locate Fort Williams, the Cape Elizabeth Church, and family-named landmarks like McKenney Pt.
  40. 1944 Map of Portland West, 1948 Print
    1944 Map of Portland West, 1948 Print
    1944 Portland West
    1948 Print · USGS
    Coastal Maine during the mid-forties reveals a bustling network of rail yards and expanding neighborhoods west of the harbor. Researchers can trace the layout of the Portland Airport, find the historic Barker School, and locate vanished rail stops like West Falmouth Station.
  43. 1948 Map of Bath
    1948 Map of Bath
    1948 Bath
    1948 Print · USGS
    Mid-coast Maine’s intricate shoreline and island outposts are captured here just after the war. Researchers can trace historic maritime settlements from Bath to Friendship and locate remote landmarks like Monhegan Island and Pemaquid Point.
    2 unique versions available
  46. 1948 Map of Portland West
    1948 Map of Portland West
    1948 Portland West
    1948 Print · USGS
    Coastal Maine during the late 1940s reveals a bustling intersection of rail and river industry between the city and its growing suburbs. Genealogists and historians can trace old neighborhoods like Woodfords or locate ancestors at Evergreen Cemetery and the State Reform School.
  49. 1949 Map of Portland
    1949 Map of Portland
    1949 Portland
    1949 Print · USGS
    Coastal Maine and the New Hampshire interior are shown in detail during the late forties, from the bustling harbors to the lakeside villages. Researchers can trace historical rail networks like the Boston & Maine RR and locate coastal defenses such as Fort Preble.
    3 unique versions available
  52. 1956 Map of Portland East, 1958 Print
    1956 Map of Portland East, 1958 Print
    1956 Portland East
    1958 Print · USGS
    Casco Bay and its island communities are captured here in the mid-fifties as coastal Maine's military and residential landscapes evolved. Researchers can trace historic harbor defenses at Fort McKinley and locate family landmarks from Waites Landing to the Pine Grove Sch.
    5 unique versions available
  55. 1956 Map of Portland West, 1958 Print
    1956 Map of Portland West, 1958 Print
    1956 Portland West
    1958 Print · USGS
    Greater Portland and Westbrook are seen here during the mid-century peak of their rail and river industries. Genealogists and historians can trace neighborhood growth through local schools like Longfellow Sch, industrial sites along the Fore River, and numerous burial grounds including Evergreen Cemetery.
    6 unique versions available
  58. 1956 Map of South Harpswell, 1959 Print
    1956 Map of South Harpswell, 1959 Print
    1956 South Harpswell
    1959 Print · USGS
    The islands and sounds of Casco Bay come alive in this mid-century survey of the Cumberland County coast. Genealogists and coastal historians can trace the landings and homesteads of South Harpswell or locate landmarks like Halfway Rock and the Observation Tower on Jewell Island.
    3 unique versions available
  61. 1956 Map of Portland, 1963 Print
    1956 Map of Portland, 1963 Print
    1956 Portland
    1963 Print · USGS
    Southern Maine and eastern New Hampshire are captured here in the mid-fifties, during a time of major highway expansion and military growth. You can trace the path of the Maine Turnpike and locate landmarks like the Portsmouth Naval Shipyard and Sebago Lake.
    4 unique versions available
  64. 1956 Map of Bath, 1974 Print
    1956 Map of Bath, 1974 Print
    1956 Bath
    1974 Print · USGS
    Coastal Maine in the mid-fifties reveals a landscape of deep-water harbors and island outposts as the region transitioned from industrial roots to a summer destination. Genealogists can trace maritime families in Boothbay Harbor, Tenants Harbor, and on remote Monhegan Island.
  67. 1957 Map of Bath
    1957 Map of Bath
    1957 Bath
    1957 Print · USGS
    The Maine coast in the mid-fifties is captured here, from the shipbuilding hubs of Bath and Brunswick to the granite reaches of Rockland. Researchers can trace the Maine Central RR line and remote island outposts like Monhegan Island and Matinicus Isle.
  70. 1957 Map of Cape Elizabeth, 1958 Print
    1957 Map of Cape Elizabeth, 1958 Print
    1957 Cape Elizabeth
    1958 Print · USGS
    Coastal Cumberland County comes into sharp focus during the late 1950s as residential growth meets maritime tradition along Casco Bay. Trace family sites near Delano Park, the strategic grounds of Fort Williams, and the rugged shoreline from Peabbles Point to Richmond Island.
    3 unique versions available
  73. 1957 Map of Small Point, 1960 Print
    1957 Map of Small Point, 1960 Print
    1957 Small Point
    1960 Print · USGS
    The Phippsburg peninsula and Harpswell islands are shown in detail during the late fifties, capturing the area's coastal defense and maritime heritage. Researchers can trace the layout of Fort Baldwin, the summer settlement at Popham Beach, and the landmarks of Bailey Island.
    4 unique versions available
Showing maps 1-25 of 34

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Frequently asked questions

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