August 2012
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Map

City and County Boundary changes

I wanted to let folks know that a new set of city boundaries developed by the Department of Public Works is available for download and visible on the County’s three cached map series, which includes the following changes:

  1. Annexations of Unincorporated Area by the City of Santa Clarita
  2. Changes to the boundary of Los Angeles County with Orange County to rationalize the border along the San Gabriel River, and
  3. Major changes to the coastline to conform the County coastline with high-resolution aerial photography from 2011.

To download the GIS data directly, go to the LA County GIS Data Portal’s City Boundary page.

Samples

In the samples below, the new boundary is in red, and the old boundary in white or black.

Santa Clarita Annexation (sample)

Map Type Before After
Base Map    
Street Map    
Canvas Map    

County Boundary Change (sample)

Map Type Before After
Base Map    
Street Map    
Canvas Map    

Ocean Boundary Change (sample)

Map Type Before After
Base Map    
Street Map    
Canvas Map    

 

 

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