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1940s Maps of Warren County, Missouri

Explore 13 historic maps of Warren 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 Warren 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 Warren County's history through authentic maps from the 1940s. This is your window into the past.

Warren County, MO maps

(13)
  1. 1941 Map of Troy, 1964 Print
    1941 Map of Troy, 1964 Print
    1941 Troy
    1964 Print · USGS
    Covers Warren County, including O'Fallon, Wentzville, and other nearby areas
    2 unique versions available
  4. 1942 Map of Hermann, 1961 Print
    1942 Map of Hermann, 1961 Print
    1942 Hermann
    1961 Print · USGS
    Covers Warren County, including Hermann, Berger, and other nearby areas
    2 unique versions available
  7. 1942 Map of New Florence, 1963 Print
    1942 Map of New Florence, 1963 Print
    1942 New Florence
    1963 Print · USGS
    Covers Warren County, including Montgomery City, New Florence, and other nearby areas
    2 unique versions available
  10. 1943 Map of Warrenton, 1962 Print
    1943 Map of Warrenton, 1962 Print
    1943 Warrenton
    1962 Print · USGS
    Covers Warren County, including Troy, Warrenton, and other nearby areas
    2 unique versions available
  13. 1945 Map of Troy
    1945 Map of Troy
    1945 Troy
    1945 Print · USGS
    Covers Warren County, including O'Fallon, Wentzville, and other nearby areas
    2 unique versions available
  16. 1945 Map of Hermann
    1945 Map of Hermann
    1945 Hermann
    1945 Print · USGS
    Covers Warren County, including Hermann, Berger, and other nearby areas
    2 unique versions available
  19. 1945 Map of Warrenton
    1945 Map of Warrenton
    1945 Warrenton
    1945 Print · USGS
    Covers Warren County, including Troy, Warrenton, and other nearby areas
    2 unique versions available
  22. 1946 Map of New Florence
    1946 Map of New Florence
    1946 New Florence
    1946 Print · USGS
    Covers Warren County, including Montgomery City, New Florence, and other nearby areas
    2 unique versions available
  25. 1948 Map of Washington, 1962 Print
    1948 Map of Washington, 1962 Print
    1948 Washington
    1962 Print · USGS
    Covers Warren County, including Washington, New Haven, and other nearby areas
    2 unique versions available
  28. 1948 Map of Augusta, 1963 Print
    1948 Map of Augusta, 1963 Print
    1948 Augusta
    1963 Print · USGS
    Covers Warren County, including O'Fallon, Washington, and other nearby areas
    2 unique versions available
  31. 1949 Map of Saint Louis
    1949 Map of Saint Louis
    1949 Saint Louis
    1949 Print · USGS
    Covers Warren County, including St. Louis, O'Fallon, and other nearby areas
    2 unique versions available
  34. 1949 Map of Washington
    1949 Map of Washington
    1949 Washington
    1949 Print · USGS
    Covers Warren County, including Washington, New Haven, and other nearby areas
    2 unique versions available
  37. 1949 Map of Augusta
    1949 Map of Augusta
    1949 Augusta
    1949 Print · USGS
    Covers Warren County, including O'Fallon, Washington, and other nearby areas
    2 unique versions available
End of results
Showing maps 1-13 of 13

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Frequently asked questions

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