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Old Maps of Westmoreland County, Pennsylvania

Explore 145 old maps of Westmoreland County, spanning from 1900 to today. These high-resolution historic maps reveal how streets, neighborhoods, landmarks, and natural features evolved over time — perfect for genealogy, metal detecting, research, and local history exploration.

What you can do with these maps:

  • See how Westmoreland County changed over time: Compare historical maps to modern-day views to trace roads, homesites, rail lines & more.
  • View detailed metadata: Each map includes creators, publishers, year, scale, and archive source.
  • Overlay maps with satellite & LiDAR: Visualize the past alongside modern tools to explore terrain & human change.
  • Trusted historical sources: Maps sourced from the USGS, Library of Congress, and other archives.
  • Access maps your way: View online, download high-res files, or order prints for personal or research use.

Start exploring old maps of Westmoreland County to uncover forgotten places, hidden landmarks, and the deep history beneath your feet.

Westmoreland County, PA maps

(145)
  1. 1900 Map of Latrobe, 1958 Print
    1900 Map of Latrobe, 1958 Print
    1900 Latrobe
    1958 Print · USGS
    The industrial heart of Westmoreland County is shown at a pivotal moment when the coal and coke industry was reshaping the land. Genealogists and historians can trace the early layouts of Latrobe, Derry, and Blairsville alongside company towns like Whitney and Baggaley.
  4. 1902 Map of Latrobe
    1902 Map of Latrobe
    1902 Latrobe
    1902 Print · USGS
    Westmoreland County at the opening of the twentieth century was a powerhouse of the American coal and coke industry. Genealogists and industrial historians can trace the early rail networks of the Main Line and locate landmark sites like the St Vincent Monastery and various Coke Ovens.
  7. 1902 Map of Brownsville
    1902 Map of Brownsville
    1902 Brownsville
    1902 Print · USGS
    The Monongahela Valley was a powerhouse of Pennsylvania industry at the start of the twentieth century, defined by its coal mines and river-front rail lines. Researchers can trace the heritage of the National Pike and locate vanished works at Vesta Mine or Coal Bluff.
  10. 1902 Map of Connellsville
    1902 Map of Connellsville
    1902 Connellsville
    1902 Print · USGS
    The Pennsylvania coke region comes alive at the turn of the century as a labyrinth of coal mines and competing rail lines. Researchers can trace the industrial footprint of Star Mines, explore the river landings along the Youghiogheny River, and find old junctions like Bells Mills.
    5 unique versions available
  13. 1902 Map of Elders Ridge, 1957 Print
    1902 Map of Elders Ridge, 1957 Print
    1902 Elders Ridge
    1957 Print · USGS
    Western Pennsylvania at the turn of the century reveals a landscape of deep valleys and rising industrial rail lines. Genealogists can trace family roots through rural hubs like Brick Church, Elderton, and the namesake village of Elders Ridge.
    2 unique versions available
  16. 1903 Map of Latrobe, 1905 Print
    1903 Map of Latrobe, 1905 Print
    1903 Latrobe
    1905 Print · USGS
    Westmoreland County at the turn of the century reveals a landscape defined by the arrival of heavy industry and the winding Conemaugh River. Genealogists can locate family landmarks from the Coke Ovens at Crabtree to the grounds of St. Vincent.
    6 unique versions available
  19. 1904 Map of Elders Ridge
    1904 Map of Elders Ridge
    1904 Elders Ridge
    1904 Print · USGS
    Armstrong and Indiana Counties are shown here during the early 1900s, when the river-and-rail economy dominated the valley floor. Researchers can trace ancestral roots through rural hamlets like Elders Ridge, Cochran Mills, and Shelocta, or follow the Western Pennsylvania Division (P. R. R.) along the Kiskiminitas River.
    5 unique versions available
  22. 1904 Map of Mc Keesport
    1904 Map of Mc Keesport
    1904 Mc Keesport
    1904 Print · USGS
    Allegheny County at the height of its industrial era reveals a landscape of massive rail yards and riverfront steel towns. Genealogists can trace family roots through dense neighborhoods in Homestead, Wilkinsburg, and Braddock or locate ancestral plots in Homewood Cem.
    2 unique versions available
  25. 1904 Map of Johnstown, 1954 Print
    1904 Map of Johnstown, 1954 Print
    1904 Johnstown
    1954 Print · USGS
    Johnstown and the Cambria County coalfields are shown in detail during their industrial peak in the early twentieth century. Researchers can trace ancestral neighborhoods like Morrellville and Franklin, or locate historic landmarks such as the Old Portage RR Tunnel and Grandview Cemetery.
    2 unique versions available
  28. 1904 Map of Greensburg, 1963 Print
    1904 Map of Greensburg, 1963 Print
    1904 Greensburg
    1963 Print · USGS
    Westmoreland County at the dawn of the twentieth century was a landscape of industrial power and small-town growth. Genealogists can trace family footprints through Greensburg, find the Bulltown Schoolhouse, or follow the Pennsylvania Railroad through Jeannette and Manor.
  31. 1906 Map of Brownsville
    1906 Map of Brownsville
    1906 Brownsville
    1906 Print · USGS
    Southwestern Pennsylvania’s river valleys were centers of industrial expansion when this survey was conducted. Genealogists can locate family homes and landmarks in riverfront towns like Monessen and Charleroi, or trace rural roots near Salem Church and Ginger Hill.
    4 unique versions available
  34. 1906 Map of Greensburg
    1906 Map of Greensburg
    1906 Greensburg
    1906 Print · USGS
    Westmoreland County at the height of its industrial growth is detailed here, showing a landscape defined by coal, glass, and rail. Researchers can trace ancestral roots at the Bulltown Schoolhouse or follow the early trolley and rail lines through Jeannette and Export.
    6 unique versions available
  37. 1907 Map of Johnstown
    1907 Map of Johnstown
    1907 Johnstown
    1907 Print · USGS
    Johnstown and the surrounding coal valleys are captured here at the height of their industrial expansion in the early twentieth century. Researchers can trace the path of the Pennsylvania RR and find vanished local landmarks like Expedit PO and the Old Portage RR Tunnel.
    6 unique versions available
  40. 1907 Map of Pittsburg
    1907 Map of Pittsburg
    1907 Pittsburg
    1907 Print · USGS
    Steel-industry heartlands and river-valley rail corridors define the Pittsburgh region in the early nineteen-hundreds. Trace the complex rail networks of the Union RR and Pennsylvania RR through industrial hubs like Homestead and Wilmerding.
    10 unique versions available
  43. 1907 Map of Freeport, 1956 Print
    1907 Map of Freeport, 1956 Print
    1907 Freeport
    1956 Print · USGS
    The industrial river valleys of Armstrong, Westmoreland, and Butler counties come alive in this early 1900s survey. Genealogists and researchers can trace the rail-and-river network through Freeport and Schenley, locating old post offices at Garvers Ferry and Dime.
  46. 1908 Map of New Kensington, 1956 Print
    1908 Map of New Kensington, 1956 Print
    1908 New Kensington
    1956 Print · USGS
    The Allegheny River valley and its surrounding townships are captured here at the start of the twentieth century. Researchers can trace early railroad stops at Allison Park Sta, find rural landmarks like Sandy Hill School, and locate the Fulton Ferry crossing.
  49. 1909 Map of Freeport
    1909 Map of Freeport
    1909 Freeport
    1909 Print · USGS
    The industrial river valleys of the Allegheny and Kiskiminitas are captured here during the peak of Pennsylvania's rail-and-river era. Researchers can trace the early layouts of Freeport and Leechburg or locate vanished sites like the Lucesco PO.
    5 unique versions available
  52. 1910 Map of New Kensington
    1910 Map of New Kensington
    1910 New Kensington
    1910 Print · USGS
    The industrial Allegheny River corridor and its rugged hinterlands come alive in this 1910 survey of the Westmoreland and Butler County borders. Genealogists and historians can trace family roots through labels for Sandy Hill School, Clinton Church, and the settlement at Saxonburg.
    7 unique versions available
  55. 1913 Map of Somerset, 1961 Print
    1913 Map of Somerset, 1961 Print
    1913 Somerset
    1961 Print · USGS
    Somerset County was a rugged crossroads of rail and mountain ridges in the decade before the First World War. Local historians can trace the Pittsburgh and Philadelphia Road and find vanished local landmarks like Rectors Mill, the Quemahoning Tunnel, and Sipesville Station.
  58. 1915 Map of Somerset
    1915 Map of Somerset
    1915 Somerset
    1915 Print · USGS
    Somerset and the surrounding Laurel Ridge region are captured here during the peak of the early twentieth-century coal boom. Genealogists and historians can trace family-named sites and industrial landmarks including Husband Mine, Rectors Mill, and the Quemahoning Tunnel.
    6 unique versions available
  61. 1920 Map of New Florence, 1958 Print
    1920 Map of New Florence, 1958 Print
    1920 New Florence
    1958 Print · USGS
    The Conemaugh River valley at the dawn of the 1920s shows a landscape defined by the PENNSYLVANIA RR and industrial coal towns. Genealogists can locate family homesteads near dozens of named country schools like Wallace School or trace the old Lincoln Highway through Armagh.
  64. 1921 Map of New Florence
    1921 Map of New Florence
    1921 New Florence
    1921 Print · USGS
    Westmoreland and Indiana counties are captured in the early 1920s as industrial rail corridors and the Lincoln Highway begin to modernize the rural landscape. Genealogists can locate family landmarks like Campbell's Mill, the Centerville Huff PO, and several country schools including Robbs School.
  67. 1922 Map of Donegal
    1922 Map of Donegal
    1922 Donegal
    1922 Print · USGS
    Westmoreland and Fayette counties are captured here in the early twenties, showing a landscape of mountain ridges and busy valley crossroads. Genealogists can trace family roots through dozens of rural landmarks like St Boniface Chapel, Hoods Mill, and the Snowball School.
    2 unique versions available
  70. 1922 Map of New Florence
    1922 Map of New Florence
    1922 New Florence
    1922 Print · USGS
    Western Pennsylvania in the early 1920s shows a landscape of river-carved ridges and busy rail corridors connecting coal and quarry towns. Genealogists can trace family footprints across dozens of rural schools and stations like Lockport Station, Centerville (Huff PO), and Grafton.
    5 unique versions available
  73. 1931 Map of Brownsville, 1954 Print
    1931 Map of Brownsville, 1954 Print
    1931 Brownsville
    1954 Print · USGS
    The industrial Monongahela and Youghiogheny river valleys are captured here in the early thirties, showcasing a landscape of coal mines and river locks. Genealogists can trace family homes near Vesta Mine, Sutersville, and rural landmarks like Salem Church.
Showing maps 1-25 of 145

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