FIMo - Fire Insurance Maps Online

FIMo Logo

About FIMo

Fire Insurance Maps Online (FIMo) provides user-friendly access to an extensive historical California map collection. High definition, color, and gray-scale images display important historical details not visible on black and white map scans. FIMo is an invaluable resource for research on urban development patterns, past property uses and occupants, family homes, genealogy, and more!

Getting Started

  • Have your library card ready (Don't have one? No problem! Get a Library Card)
  • Click on the GO button above
  • Log in with your library card and PIN if asked


  • A learning portal with search tips, tool descriptions, and instructions on how to interpret Sanborn maps.
  • An interactive map tool.
  • Enter an address to see if it appears on a map in the collection.
  • Browse by city to see what maps are available.
  • Over 2,100 maps covering 523 California cities.
  • High definition, color, and gray-scale images.

Available for Use On

  • Desktop computers
  • Mobile devices
  • There is no app for this resource

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