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1900s (20th Century) Maps of Delaware County, Pennsylvania

Explore 63 historic maps of Delaware 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 Delaware 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 Delaware County's history through authentic maps from the 1900s. This is your window into the past.

Delaware County, PA maps

(63)
  1. 1901 Map of Camden
    1901 Map of Camden
    1901 Camden
    1901 Print · USGS
    The Delaware River valley at the turn of the century shows a bustling corridor of early industrial growth and established mill towns. Researchers can trace the heritage of local industry at Sycamore Mills or locate early settlements like Penns Grove and Village Green.
    3 unique versions available
  4. 1901 Map of West Chester, 1958 Print
    1901 Map of West Chester, 1958 Print
    1901 West Chester
    1958 Print · USGS
    Settled hills and river valleys between Pennsylvania and Delaware are captured here in the early twentieth century. Trace the industrial landscape from West Chester down to Wilmington, finding landmarks like the Henry Clay Factory and Dutton Mill.
  7. 1904 Map of West Chester
    1904 Map of West Chester
    1904 West Chester
    1904 Print · USGS
    Chester County at the dawn of the 1900s reveals a thriving network of rail-connected villages and early industrial sites along the Brandywine Creek. Researchers can trace old family lands near Dutton Mill, the House of Refuge, and the vanished stops of the West Chester Br. railroad.
    8 unique versions available
  10. 1920 Map of Philadelphia
    1920 Map of Philadelphia
    1920 Philadelphia
    1920 Print · USGS
    Philadelphia and its New Jersey neighbors are captured here just after the Great War, showing a landscape defined by massive riverfront industry and a dense rail network. Genealogists can trace family footprints through numerous small communities and stations like Blenheim Station, Woodbury Heights, and the grounds of the Alms House.
  13. 1940 Map of Bridgeport
    1940 Map of Bridgeport
    1940 Bridgeport
    1940 Print · USGS
    The industrial Delaware River waterfront and the rural truck farms of Gloucester County meet at the start of the 1940s. Researchers can trace family sites at Oaklawn Cem, follow the rail lines to Repaupo Sta, and see the footprint of the Locomotive Works.
  16. 1941 Map of Marcus Hook
    1941 Map of Marcus Hook
    1941 Marcus Hook
    1941 Print · USGS
    The industrial and maritime riverfront at the start of the 1940s is captured here, showing the dense rail networks of the Marcus Hook area. Researchers can trace ancestral property near Hambys Corner, Siloam Ch, or the U S Military Reservation.
  19. 1941 Map of Bridgeport
    1941 Map of Bridgeport
    1941 Bridgeport
    1941 Print · USGS
    The Delaware River waterfront near Chester and Bridgeport was a hub of transit and industry in the early 1940s. Genealogists and historians can trace family locations through St Michael Cem, Oak Grove Sch, and the residential blocks of Westinghouse Village.
  22. 1942 Map of Norristown
    1942 Map of Norristown
    1942 Norristown
    1942 Print · USGS
    Southeastern Pennsylvania at the onset of World War II shows a landscape of busy industrial river towns and expanding rail suburbs. Genealogists and historians can trace the early transit networks connecting Norristown, Doylestown, and the riverfront at New Hope.
  25. 1942 Map of Camden
    1942 Map of Camden
    1942 Camden
    1942 Print · USGS
    The Philadelphia and Camden metropolitan corridor is captured here at the height of the Second World War. Genealogists and historians can trace rail networks like the Reading R.R. and locate communities from Swedesboro to Merchantville.
  28. 1942 Map of Lansdowne
    1942 Map of Lansdowne
    1942 Lansdowne
    1942 Print · USGS
    Delaware County townships thrive just before the mid-century, showing a landscape of dense residential growth and institutional landmarks. Genealogists can trace family sites near Holy Cross Cemetery or old rail hubs like Morton Sta and Lansdowne Sta.
  31. 1943 Map of Philadelphia
    1943 Map of Philadelphia
    1943 Philadelphia
    1943 Print · USGS
    Philadelphia and Camden are shown at their wartime peak, anchored by the industrial activity of the Delaware River waterfront. Genealogists and historians can trace rail-connected neighborhoods and landmarks like the U. S. Navy Yard, Fort Mifflin, and the Alms House.
  34. 1943 Map of West Chester
    1943 Map of West Chester
    1943 West Chester
    1943 Print · USGS
    Chester County during the early years of the war shows a landscape of established borough centers and winding creek valleys. Genealogists and historians can trace the rail-and-river network through West Chester, Brandywine Creek, and early industrial sites like Dutton Mill.
  37. 1943 Map of Norristown
    1943 Map of Norristown
    1943 Norristown
    1943 Print · USGS
    Montgomery County in the early 1940s is a thriving network of rail-side industrial hubs and established borough centers. Genealogists and local historians can trace the development of Norristown and Lansdale or locate landmarks like the Eastern State Penitentiary.
  40. 1944 Map of Bridgeport
    1944 Map of Bridgeport
    1944 Bridgeport
    1944 Print · USGS
    During the mid-1940s, the Delaware River waterfront between Pennsylvania and New Jersey served as a vital hub for manufacturing and transit. Genealogists and historians can locate family landmarks such as St Michael Cem, Oak Grove Sch, and industrial sites like the Locomotive Works.
    2 unique versions available
  43. 1944 Map of Newark, 1971 Print
    1944 Map of Newark, 1971 Print
    1944 Newark
    1971 Print · USGS
    The industrial corridor from Philadelphia to New York was in a period of massive transition during the mid-forties. Genealogists and researchers can trace the rail lines of the Lehigh Valley RR, locate military installations like Picatinny Arsenal, and explore the early sprawl near Levittown.
    5 unique versions available
  46. 1945 Map of Media
    1945 Map of Media
    1945 Media
    1945 Print · USGS
    Delaware County is captured here in the mid-1940s, a period when traditional country estates and institutional campuses began meeting suburban expansion. Researchers can trace historic family landmarks like Tyler Arboretum, find old school sites like Sleighton Farm School, and locate the mills of Glen Riddle.
    2 unique versions available
  49. 1946 Map of Lansdowne
    1946 Map of Lansdowne
    1946 Lansdowne
    1946 Print · USGS
    Delaware County enters the post-war era as a thriving network of rail-connected suburbs and institutional landmarks. Genealogists can trace family plots across Arlington Cemetery or locate old community hubs like Leipers Ch and Swarthmore College.
    2 unique versions available
  52. 1946 Map of Wilmington, 1948 Print
    1946 Map of Wilmington, 1948 Print
    1946 Wilmington
    1948 Print · USGS
    The Delaware Valley and Jersey Shore emerge in this mid-century portrait of a region defined by river commerce and seaside growth. Genealogists and historians can trace the rail networks of the Pennsylvania Railroad, locate early airfields like Dover Airpark, and find river defenses at Fort Delaware.
    2 unique versions available
  55. 1948 Map of Marcus Hook
    1948 Map of Marcus Hook
    1948 Marcus Hook
    1948 Print · USGS
    The industrial corridor along the Delaware River thrives in the late 1940s as rail and river trade intersect. Genealogists can locate family landmarks like Mt Hope Ch Cem, the U S Quarantine Sta, and the busy junction at Marcus Hook.
    2 unique versions available
  58. 1949 Map of Newark
    1949 Map of Newark
    1949 Newark
    1949 Print · USGS
    The industrial corridor between Philadelphia and New York comes alive in this post-war survey. Genealogists and historians can trace the massive rail networks of the Reading Railroad and locate major installations like Fort Dix or Picatinny Arsenal.
    2 unique versions available
  61. 1949 Map of Philadelphia, 1953 Print
    1949 Map of Philadelphia, 1953 Print
    1949 Philadelphia
    1953 Print · USGS
    Philadelphia at the close of the 1940s reveals a bustling industrial powerhouse and deeply rooted residential neighborhoods. Researchers can trace the extensive rail lines of the READING RR, locate historic landmarks like Independence Hall, or explore the sprawling US NAVAL RESERVATION and FAIRMOUNT PARK.
    2 unique versions available
  64. 1949 Map of Woodbury, 1954 Print
    1949 Map of Woodbury, 1954 Print
    1949 Woodbury
    1954 Print · USGS
    Gloucester County during the post-war era shows a landscape transitioning from the industrial riverfront of the Delaware River to growing inland communities. Researchers can trace historical sites like the Hog Island Shipyard (Abandoned), Red Bank Battlefield, and the rail corridors of the Reading Seashore Lines.
    2 unique versions available
  67. 1951 Map of Woodbury
    1951 Map of Woodbury
    1951 Woodbury
    1951 Print · USGS
    Gloucester County at the start of the fifties shows a landscape of busy rail corridors and riverfront industry. Trace the Pennsylvania-Reading Seashore Lines through Woodbury and locate the Hog Island Shipyard (Abandoned) or Fort Mifflin along the Delaware.
  70. 1952 Map of Valley Forge, 1953 Print
    1952 Map of Valley Forge, 1953 Print
    1952 Valley Forge
    1953 Print · USGS
    The Main Line and Valley Forge area are captured here during the early fifties suburban expansion. Genealogists and researchers can trace local landmarks like Washington Memorial Chapel, the School for Blind, and the Norbertine Monastery.
    3 unique versions available
  73. 1952 Map of Norristown, 1954 Print
    1952 Map of Norristown, 1954 Print
    1952 Norristown
    1954 Print · USGS
    Montgomery County's river towns and Main Line colleges are captured in the early fifties during a period of rapid suburbanization. Trace the development of Villanova College and Bryn Mawr College or locate the old Patco Airport and Barbadoes Island.
    2 unique versions available
Showing maps 1-25 of 63

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Frequently asked questions

  • What are the different types of historical maps available for Delaware County?
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  • Where are historical maps of Delaware County sourced from?