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Old Maps of Mercer, Ohio

Explore 7 old maps of Mercer, spanning from 1914 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 Mercer 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 Mercer to uncover forgotten places, hidden landmarks, and the deep history beneath your feet.

Mercer, OH maps

(7)
  1. 1914 Map of Celina, 1942 Print
    1914 Map of Celina, 1942 Print
    1914 Celina
    1942 Print · USGS
    Mercer County's agricultural and railway hub at Celina is captured here in the years before the Great War. Genealogists and local historians can pinpoint dozens of rural schoolhouses and crossroads settlements, including Skeels Crossroads, St Anthony, and the County Infirmary.
  4. 1944 Map of Celina
    1944 Map of Celina
    1944 Celina
    1944 Print · USGS
    Mercer and Van Wert counties in the mid-1940s show a landscape of productive farmland and lakeside life. Genealogists can locate dozens of country schoolhouses like Victor Sch and trace family roots in settlements from St Anthony to Willshire.
  7. 1953 Map of Muncie, 1966 Print
    1953 Map of Muncie, 1966 Print
    1953 Muncie
    1966 Print · USGS
    Indiana and Ohio borderlands thrive in the early fifties, showing a landscape defined by manufacturing cities and an intensive railroad network. Genealogists can trace family roots across the Indiana-Ohio line through Muncie, Celina, and Portland via the Pennsylvania railroad.
    5 unique versions available
  10. 1956 Map of Muncie
    1956 Map of Muncie
    1956 Muncie
    1956 Print · USGS
    Eastern Indiana and western Ohio are shown at a peak of rail-driven industry in the mid-fifties. Genealogists and rail historians can trace the paths of the Pennsylvania RR through Muncie or locate landmarks like Lake Saint Marys (Grand Lake Reservoir) and Frances Slocum State Forest.
  13. 1960 Map of Mendon, 1961 Print
    1960 Map of Mendon, 1961 Print
    1960 Mendon
    1961 Print · USGS
    Mercer and Van Wert counties are captured in the early 1960s, showing a landscape of productive farmsteads and rural crossroads. Local researchers can trace the New York Central rail line through Mendon or locate family sites like Frisinger Cem and Wesley Chapel.
    2 unique versions available
  16. 1986 Map of Lima
    1986 Map of Lima
    1986 Lima
    1986 Print · USGS
    West Ohio and East Indiana are captured here in the mid-1980s, showcasing a landscape of productive farmland and industrial transit hubs. Genealogists and historians can trace the development of Lima and Van Wert or locate landmarks like Woodland Chapel and the Lima Ordnance Modification Center.
    3 unique versions available
  19. 2023 Map of Mendon, 2023 Print
    2023 Map of Mendon, 2023 Print
    2023 Mendon
    2023 Print · USGS
    Mercer County and the village of Mendon are depicted here in the early twenty-first century, showcasing a landscape shaped by the Saint Marys River. Family historians can locate numerous rural burial sites like Frysinger Cem, Mount Olive Cem, and the Mendon Cem.
End of results
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