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1900-1909 Maps of Allegheny County, Pennsylvania

Explore 18 historic maps of Allegheny County from 1900-1909. 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 Allegheny 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 Allegheny County's history through authentic maps from the 1900s. This is your window into the past.

Allegheny County, PA maps

(18)
  1. 1901 Map of Beaver, 1958 Print
    1901 Map of Beaver, 1958 Print
    1901 Beaver
    1958 Print · USGS
    Covers Allegheny County, including Moon Township, Center Township, and other nearby areas
  4. 1902 Map of Brownsville
    1902 Map of Brownsville
    1902 Brownsville
    1902 Print · USGS
    Covers Allegheny County, including Monessen, California, and other nearby areas
  7. 1904 Map of Mc Keesport
    1904 Map of Mc Keesport
    1904 Mc Keesport
    1904 Print · USGS
    Covers Allegheny County, including Pittsburgh, Penn Hills, and other nearby areas
    2 unique versions available
  10. 1904 Map of Beaver
    1904 Map of Beaver
    1904 Beaver
    1904 Print · USGS
    Covers Allegheny County, including Moon Township, Center Township, and other nearby areas
    6 unique versions available
  13. 1904 Map of Carnegie, 1954 Print
    1904 Map of Carnegie, 1954 Print
    1904 Carnegie
    1954 Print · USGS
    Covers Allegheny County, including Pittsburgh, Bethel Park, and other nearby areas
  16. 1904 Map of Burgettstown, 1958 Print
    1904 Map of Burgettstown, 1958 Print
    1904 Burgettstown
    1958 Print · USGS
    Covers Allegheny County, including Cecil Township, Independence Township, and other nearby areas
  19. 1904 Map of Greensburg, 1963 Print
    1904 Map of Greensburg, 1963 Print
    1904 Greensburg
    1963 Print · USGS
    Covers Allegheny County, including Monroeville, Greensburg, and other nearby areas
  22. 1906 Map of Brownsville
    1906 Map of Brownsville
    1906 Brownsville
    1906 Print · USGS
    Covers Allegheny County, including Monessen, California, and other nearby areas
    4 unique versions available
  25. 1906 Map of Burgettstown
    1906 Map of Burgettstown
    1906 Burgettstown
    1906 Print · USGS
    Covers Allegheny County, including Cecil Township, Independence Township, and other nearby areas
    5 unique versions available
  28. 1906 Map of Carnegie
    1906 Map of Carnegie
    1906 Carnegie
    1906 Print · USGS
    Covers Allegheny County, including Pittsburgh, Bethel Park, and other nearby areas
    7 unique versions available
  31. 1906 Map of Greensburg
    1906 Map of Greensburg
    1906 Greensburg
    1906 Print · USGS
    Covers Allegheny County, including Monroeville, Greensburg, and other nearby areas
    6 unique versions available
  34. 1906 Map of Sewickley, 1960 Print
    1906 Map of Sewickley, 1960 Print
    1906 Sewickley
    1960 Print · USGS
    Covers Allegheny County, including Pittsburgh, Ross Township, and other nearby areas
  37. 1907 Map of Pittsburg
    1907 Map of Pittsburg
    1907 Pittsburg
    1907 Print · USGS
    Covers Allegheny County, including Pittsburgh, Penn Hills, and other nearby areas
    10 unique versions available
  40. 1907 Map of Freeport, 1956 Print
    1907 Map of Freeport, 1956 Print
    1907 Freeport
    1956 Print · USGS
    Covers Allegheny County, including Plum, New Kensington, and other nearby areas
  43. 1908 Map of Sewickley
    1908 Map of Sewickley
    1908 Sewickley
    1908 Print · USGS
    Covers Allegheny County, including Pittsburgh, Ross Township, and other nearby areas
    7 unique versions available
  46. 1908 Map of Carnegie, 1910 Print
    1908 Map of Carnegie, 1910 Print
    1908 Carnegie
    1910 Print · USGS
    Covers Allegheny County, including Pittsburgh, Bethel Park, and other nearby areas
  49. 1908 Map of New Kensington, 1956 Print
    1908 Map of New Kensington, 1956 Print
    1908 New Kensington
    1956 Print · USGS
    Covers Allegheny County, including Penn Hills, Ross Township, and other nearby areas
  52. 1909 Map of Freeport
    1909 Map of Freeport
    1909 Freeport
    1909 Print · USGS
    Covers Allegheny County, including Plum, New Kensington, and other nearby areas
    5 unique versions available
End of results
Showing maps 1-18 of 18

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Frequently asked questions

  • What are the different types of historical maps available for Allegheny County?
  • What is the oldest map of Allegheny County?
  • Where can I purchase historical maps of Allegheny County for my home or office?
  • Where can I download high-res historical maps of Allegheny County?
  • Are there historical topographic maps available for Allegheny County?
  • Is there historical aerial imagery available for Allegheny County?
  • Where are historical maps of Allegheny County sourced from?