Join Free

1940s Maps of Monroe County, Illinois

Explore 8 historic maps of Monroe 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 Monroe 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 Monroe County's history through authentic maps from the 1940s. This is your window into the past.

Monroe County, IL maps

(8)
  1. 1940 Map of Cahokia
    1940 Map of Cahokia
    1940 Cahokia
    1940 Print · USGS
    Covers Monroe County, including Cahokia Heights, East St. Louis, and other nearby areas
    3 unique versions available
  4. 1940 Map of Renault, 1955 Print
    1940 Map of Renault, 1955 Print
    1940 Renault
    1955 Print · USGS
    Covers Monroe County, including Sainte Genevieve, Red Bud, and other nearby areas
    2 unique versions available
  7. 1941 Map of Jefferson Barracks
    1941 Map of Jefferson Barracks
    1941 Jefferson Barracks
    1941 Print · USGS
    Covers Monroe County, including Mehlville, Webster Groves, and other nearby areas
    3 unique versions available
  10. 1942 Map of Baldwin, 1960 Print
    1942 Map of Baldwin, 1960 Print
    1942 Baldwin
    1960 Print · USGS
    Covers Monroe County, including Sparta, Red Bud, and other nearby areas
  13. 1948 Map of Kimmswick, 1955 Print
    1948 Map of Kimmswick, 1955 Print
    1948 Kimmswick
    1955 Print · USGS
    Covers Monroe County, including Oakville, Arnold, and other nearby areas
  16. 1949 Map of Saint Louis
    1949 Map of Saint Louis
    1949 Saint Louis
    1949 Print · USGS
    Covers Monroe County, including St. Louis, O'Fallon, and other nearby areas
    2 unique versions available
  19. 1949 Map of Cahokia, 1954 Print
    1949 Map of Cahokia, 1954 Print
    1949 Cahokia
    1954 Print · USGS
    Covers Monroe County, including Cahokia Heights, East St. Louis, and other nearby areas
    2 unique versions available
  22. 1949 Map of Crystal City, 1959 Print
    1949 Map of Crystal City, 1959 Print
    1949 Crystal City
    1959 Print · USGS
    Covers Monroe County, including Festus, Crystal City, and other nearby areas
    2 unique versions available
End of results
Showing maps 1-8 of 8

Top cities of Monroe County

Frequently asked questions

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