Join Free

1940s Maps of Saint Clair County, Illinois

Explore 9 historic maps of Saint Clair 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 Saint Clair 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 Saint Clair County's history through authentic maps from the 1940s. This is your window into the past.

Saint Clair County, IL maps

(9)
  1. 1940 Map of Granite City
    1940 Map of Granite City
    1940 Granite City
    1940 Print · USGS
    Covers Saint Clair County, including St. Louis, Granite City, and other nearby areas
    4 unique versions available
  4. 1940 Map of Cahokia
    1940 Map of Cahokia
    1940 Cahokia
    1940 Print · USGS
    Covers Saint Clair County, including Cahokia Heights, East St. Louis, and other nearby areas
    3 unique versions available
  7. 1940 Map of Okawville, 1958 Print
    1940 Map of Okawville, 1958 Print
    1940 Okawville
    1958 Print · USGS
    Covers Saint Clair County, including Marissa, Okawville, and other nearby areas
  10. 1941 Map of Jefferson Barracks
    1941 Map of Jefferson Barracks
    1941 Jefferson Barracks
    1941 Print · USGS
    Covers Saint Clair County, including Mehlville, Webster Groves, and other nearby areas
    3 unique versions available
  13. 1942 Map of Baldwin, 1960 Print
    1942 Map of Baldwin, 1960 Print
    1942 Baldwin
    1960 Print · USGS
    Covers Saint Clair County, including Sparta, Red Bud, and other nearby areas
  16. 1949 Map of Saint Louis
    1949 Map of Saint Louis
    1949 Saint Louis
    1949 Print · USGS
    Covers Saint Clair County, including St. Louis, O'Fallon, and other nearby areas
    2 unique versions available
  19. 1949 Map of Lebanon
    1949 Map of Lebanon
    1949 Lebanon
    1949 Print · USGS
    Covers Saint Clair County, including O'Fallon, Shiloh, and other nearby areas
    2 unique versions available
  22. 1949 Map of St. Jacob
    1949 Map of St. Jacob
    1949 St. Jacob
    1949 Print · USGS
    Covers Saint Clair County, including Troy, Saint Jacob, and other nearby areas
    2 unique versions available
  25. 1949 Map of Cahokia, 1954 Print
    1949 Map of Cahokia, 1954 Print
    1949 Cahokia
    1954 Print · USGS
    Covers Saint Clair County, including Cahokia Heights, East St. Louis, and other nearby areas
    2 unique versions available
End of results
Showing maps 1-9 of 9

Top cities of Saint Clair County

See more

Frequently asked questions

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