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

Explore 7 historic maps of Union 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 Union'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 Union's history through authentic maps from the 1900s. This is your window into the past.

Union, IL maps

(7)
  1. 1938 Map of Genoa
    1938 Map of Genoa
    1938 Genoa
    1938 Print · USGS
    Covers Union, including Sycamore, Genoa, and other nearby areas
    3 unique versions available
  4. 1954 Map of Rockford
    1954 Map of Rockford
    1954 Rockford
    1954 Print · USGS
    Covers Union, including Milwaukee, Madison, and other nearby areas
  7. 1955 Map of Rockford
    1955 Map of Rockford
    1955 Rockford
    1955 Print · USGS
    Covers Union, including Milwaukee, Madison, and other nearby areas
  10. 1958 Map of Rockford, 1974 Print
    1958 Map of Rockford, 1974 Print
    1958 Rockford
    1974 Print · USGS
    Covers Union, including Milwaukee, Madison, and other nearby areas
    4 unique versions available
  13. 1963 Map of Rockford
    1963 Map of Rockford
    1963 Rockford
    1963 Print · USGS
    Covers Union, including Milwaukee, Madison, and other nearby areas
  16. 1968 Map of Marengo South, 1970 Print
    1968 Map of Marengo South, 1970 Print
    1968 Marengo South
    1970 Print · USGS
    Covers Union, including Hampshire, Coral, and other nearby areas
    2 unique versions available
  19. 1981 Map of Elgin
    1981 Map of Elgin
    1981 Elgin
    1981 Print · USGS
    Covers Union, including Rockford, Elgin, and other nearby areas
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 Union?
  • What is the oldest map of Union?
  • Where can I purchase historical maps of Union for my home or office?
  • Where can I download high-res historical maps of Union?
  • Are there historical topographic maps available for Union?
  • Is there historical aerial imagery available for Union?
  • Where are historical maps of Union sourced from?

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