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Old Maps of Union County, Ohio

Explore 49 old maps of Union County, spanning from 1901 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 Union 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 Union County to uncover forgotten places, hidden landmarks, and the deep history beneath your feet.

Union County, OH maps

(49)
  1. 1901 Map of Dublin, 1955 Print
    1901 Map of Dublin, 1955 Print
    1901 Dublin
    1955 Print · USGS
    Covers Union County, including Columbus, Dublin, and other nearby areas
  4. 1903 Map of Dublin, 1939 Print
    1903 Map of Dublin, 1939 Print
    1903 Dublin
    1939 Print · USGS
    Covers Union County, including Columbus, Dublin, and other nearby areas
    2 unique versions available
  7. 1903 Map of Marion, 1961 Print
    1903 Map of Marion, 1961 Print
    1903 Marion
    1961 Print · USGS
    Covers Union County, including Marion, Big Island, and other nearby areas
  10. 1905 Map of Marion, 1944 Print
    1905 Map of Marion, 1944 Print
    1905 Marion
    1944 Print · USGS
    Covers Union County, including Marion, Big Island, and other nearby areas
  13. 1913 Map of East Liberty, 1961 Print
    1913 Map of East Liberty, 1961 Print
    1913 East Liberty
    1961 Print · USGS
    Covers Union County, including Bellefontaine, West Liberty, and other nearby areas
  16. 1913 Map of Richwood, 1962 Print
    1913 Map of Richwood, 1962 Print
    1913 Richwood
    1962 Print · USGS
    Covers Union County, including Marysville, Richwood, and other nearby areas
  19. 1914 Map of Mechanicsburg, 1954 Print
    1914 Map of Mechanicsburg, 1954 Print
    1914 Mechanicsburg
    1954 Print · USGS
    Covers Union County, including Urbana, West Liberty, and other nearby areas
  22. 1915 Map of Richwood, 1936 Print
    1915 Map of Richwood, 1936 Print
    1915 Richwood
    1936 Print · USGS
    Covers Union County, including Marysville, Richwood, and other nearby areas
  25. 1915 Map of East Liberty, 1941 Print
    1915 Map of East Liberty, 1941 Print
    1915 East Liberty
    1941 Print · USGS
    Covers Union County, including Bellefontaine, West Liberty, and other nearby areas
  28. 1915 Map of Kenton, 1942 Print
    1915 Map of Kenton, 1942 Print
    1915 Kenton
    1942 Print · USGS
    Covers Union County, including Kenton, Blanchard, and other nearby areas
  31. 1915 Map of La Rue, 1944 Print
    1915 Map of La Rue, 1944 Print
    1915 La Rue
    1944 Print · USGS
    Covers Union County, including La Rue, New Bloomington, and other nearby areas
  34. 1916 Map of Mechanicsburg, 1936 Print
    1916 Map of Mechanicsburg, 1936 Print
    1916 Mechanicsburg
    1936 Print · USGS
    Covers Union County, including Urbana, West Liberty, and other nearby areas
  37. 1916 Map of Milford Center, 1948 Print
    1916 Map of Milford Center, 1948 Print
    1916 Milford Center
    1948 Print · USGS
    Covers Union County, including Marysville, Plain City, and other nearby areas
  40. 1924 Map of Delaware, 1954 Print
    1924 Map of Delaware, 1954 Print
    1924 Delaware
    1954 Print · USGS
    Covers Union County, including Delaware, Scioto, and other nearby areas
  43. 1925 Map of Delaware, 1940 Print
    1925 Map of Delaware, 1940 Print
    1925 Delaware
    1940 Print · USGS
    Covers Union County, including Delaware, Scioto, and other nearby areas
  46. 1944 Map of East Liberty
    1944 Map of East Liberty
    1944 East Liberty
    1944 Print · USGS
    Covers Union County, including Bellefontaine, West Liberty, and other nearby areas
  49. 1944 Map of Mechanicsburg
    1944 Map of Mechanicsburg
    1944 Mechanicsburg
    1944 Print · USGS
    Covers Union County, including Urbana, West Liberty, and other nearby areas
  52. 1944 Map of Kenton
    1944 Map of Kenton
    1944 Kenton
    1944 Print · USGS
    Covers Union County, including Kenton, Blanchard, and other nearby areas
  55. 1944 Map of Richwood
    1944 Map of Richwood
    1944 Richwood
    1944 Print · USGS
    Covers Union County, including Marysville, Richwood, and other nearby areas
  58. 1944 Map of Milford Center
    1944 Map of Milford Center
    1944 Milford Center
    1944 Print · USGS
    Covers Union County, including Marysville, Plain City, and other nearby areas
  61. 1944 Map of Delaware
    1944 Map of Delaware
    1944 Delaware
    1944 Print · USGS
    Covers Union County, including Delaware, Scioto, and other nearby areas
  64. 1950 Map of Marion
    1950 Map of Marion
    1950 Marion
    1950 Print · USGS
    Covers Union County, including Columbus, Newark, and other nearby areas
  67. 1954 Map of Shawnee Hills, 1956 Print
    1954 Map of Shawnee Hills, 1956 Print
    1954 Shawnee Hills
    1956 Print · USGS
    Covers Union County, including Dublin, Jerome, and other nearby areas
  70. 1954 Map of Hilliard, 1956 Print
    1954 Map of Hilliard, 1956 Print
    1954 Hilliard
    1956 Print · USGS
    Covers Union County, including Columbus, Dublin, and other nearby areas
  73. 1961 Map of East Liberty
    1961 Map of East Liberty
    1961 East Liberty
    1961 Print · USGS
    Covers Union County, including Zane Township, Jefferson Township, and other nearby areas
    4 unique versions available
Showing maps 1-25 of 49

Top cities of Union County

Frequently asked questions

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  • Where are historical maps of Union County sourced from?