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1900s (20th Century) Maps of Illiopolis, Illinois

Explore 7 historic maps of Illiopolis from the 1900s (20th Century). These maps offer a rare glimpse into what life looked like during the 1900s — 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 Illiopolis's landscape evolved across the 1900s, 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 1900s, 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 Illiopolis's history through authentic maps from the 1900s. This is your window into the past.

Illiopolis, IL maps

(7)
  1. 1954 Map of Niantic, 1955 Print
    1954 Map of Niantic, 1955 Print
    1954 Niantic
    1955 Print · USGS
    Covers Illiopolis, including Decatur, Harristown, and other nearby areas
    3 unique versions available
  4. 1954 Map of Mechanicsburg, 1955 Print
    1954 Map of Mechanicsburg, 1955 Print
    1954 Mechanicsburg
    1955 Print · USGS
    Covers Illiopolis, including Mechanicsburg, Mount Auburn, and other nearby areas
    2 unique versions available
  7. 1958 Map of Decatur, 1971 Print
    1958 Map of Decatur, 1971 Print
    1958 Decatur
    1971 Print · USGS
    Covers Illiopolis, including Springfield, Decatur, and other nearby areas
    3 unique versions available
  10. 1961 Map of Decatur
    1961 Map of Decatur
    1961 Decatur
    1961 Print · USGS
    Covers Illiopolis, including Springfield, Decatur, and other nearby areas
    2 unique versions available
  13. 1982 Map of Niantic, 1983 Print
    1982 Map of Niantic, 1983 Print
    1982 Niantic
    1983 Print · USGS
    Covers Illiopolis, including Niantic, Osbernville, and other nearby areas
  16. 1982 Map of Mount Auburn, 1983 Print
    1982 Map of Mount Auburn, 1983 Print
    1982 Mount Auburn
    1983 Print · USGS
    Covers Illiopolis, including Mount Auburn, Lanesville, and other nearby areas
  19. 1985 Map of Springfield
    1985 Map of Springfield
    1985 Springfield
    1985 Print · USGS
    Covers Illiopolis, including Springfield, Decatur, and other nearby areas
    2 unique versions available
End of results
Showing maps 1-7 of 7

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Frequently asked questions

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

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