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1940s Maps of Mercer County, Illinois

Explore 6 historic maps of Mercer County from the 1940s. These maps offer a rare glimpse into what life looked like during the 1940s — 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 Mercer County's landscape evolved across the 1940s, 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 1940s, 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 Mercer County's history through authentic maps from the 1940s. This is your window into the past.

Mercer County, IL maps

(6)
  1. 1941 Map of Keithsburg
    1941 Map of Keithsburg
    1941 Keithsburg
    1941 Print · USGS
    Covers Mercer County, including Aledo, Millersburg, and other nearby areas
    2 unique versions available
  4. 1944 Map of Milan, 1958 Print
    1944 Map of Milan, 1958 Print
    1944 Milan
    1958 Print · USGS
    Covers Mercer County, including Davenport, Moline, and other nearby areas
  7. 1946 Map of Wapello, 1954 Print
    1946 Map of Wapello, 1954 Print
    1946 Wapello
    1954 Print · USGS
    Covers Mercer County, including Wapello, Mediapolis, and other nearby areas
    2 unique versions available
  10. 1947 Map of Woodhull
    1947 Map of Woodhull
    1947 Woodhull
    1947 Print · USGS
    Covers Mercer County, including Ontario, Woodhull, and other nearby areas
    2 unique versions available
  13. 1948 Map of Muscatine
    1948 Map of Muscatine
    1948 Muscatine
    1948 Print · USGS
    Covers Mercer County, including Muscatine, Fruitland, and other nearby areas
    2 unique versions available
  16. 1949 Map of Wapello
    1949 Map of Wapello
    1949 Wapello
    1949 Print · USGS
    Covers Mercer County, including Wapello, Mediapolis, and other nearby areas
    2 unique versions available
End of results
Showing maps 1-6 of 6

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Frequently asked questions

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