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1940s Maps of Decatur, Iowa

Explore 2 historic maps of Decatur 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 Decatur'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 Decatur's history through authentic maps from the 1940s. This is your window into the past.

Decatur, IA maps

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  1. 1945 Map of Lamoni, 1957 Print
    1945 Map of Lamoni, 1957 Print
    1945 Lamoni
    1957 Print · USGS
    The Iowa and Missouri borderlands come to life in this mid-century survey of the rural corridor between Harrison and Decatur counties. Researchers can trace the tracks of the Chicago Burlington and Quincy railroad and find local landmarks like Andover, Riverview Ch, and Akron Cem.
  4. 1947 Map of Lamoni
    1947 Map of Lamoni
    1947 Lamoni
    1947 Print · USGS
    The rural borderlands of Iowa and Missouri are captured here just after the war, showing a dense network of country schools and churches. Genealogists can trace family roots through landmarks like Andover Cem, Lone Star Sch, and the Riverview Ch along the Thompson River.
    2 unique versions available
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Frequently asked questions

  • What are the different types of historical maps available for Decatur?
  • What is the oldest map of Decatur?
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  • Are there historical topographic maps available for Decatur?
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  • Where are historical maps of Decatur sourced from?