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1920s Maps of Diamond Bar, California

Explore 3 historic maps of Diamond Bar from the 1920s. These maps offer a rare glimpse into what life looked like during the 1920s — 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 Diamond Bar's landscape evolved across the 1920s, 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 1920s, 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 Diamond Bar's history through authentic maps from the 1920s. This is your window into the past.

Diamond Bar, CA maps

(3)
  1. 1927 Map of Covina
    1927 Map of Covina
    1927 Covina
    1927 Print · USGS
    Covers Diamond Bar, including Pomona, West Covina, and other nearby areas
    3 unique versions available
  4. 1928 Map of Claremont
    1928 Map of Claremont
    1928 Claremont
    1928 Print · USGS
    Covers Diamond Bar, including Pomona, Chino, and other nearby areas
    3 unique versions available
  7. 1928 Map of La Brea
    1928 Map of La Brea
    1928 La Brea
    1928 Print · USGS
    Covers Diamond Bar, including Fullerton, Chino Hills, and other nearby areas
    3 unique versions available
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Frequently asked questions

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