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Downloadable data is for knowledgeable GIS Users. These data are in a GIS format and cannot be viewed without the appropriate software and user understanding. County GIS resources are available to assist interested parties in developing custom maps and/or consolidating the available GIS data. If interested, please inquire at GISHELP@ventura.org.

Disclaimer: The data layers provided hereon were created by the Ventura County Geographical Information System (GIS), which is designed and operated solely for the convenience of the County and related contract entities. The County does not warrant the accuracy of this information, and no decision involving a risk of economic loss or physical injury should be made in reliance thereon.

File Name Type Size  
assembly Polygon 95 KB Download
These data represent represents boundaries of Assembly Districts in Ventura County.
BoardofEducationTrustee Polygon 75 KB Download
These data represent the five trustee areas within Ventura County for the Ventura County Board of Education.
cities Polygon 211 KB Download
These data represent the current boundaries of all cities in Ventura County.
city_sphere Polygon 159 KB Download
These data represent represents the current boundaries of the Sphere of Influence for all cities in Ventura County. The Sphere of Influence represents the geographic extent to which a city can expand by annexation.
congressional   Polygon 100 KB Download
This data set represents the boundaries of Congressional Districts in Ventura County.
election_precinct Polygon 1.76 MB Download
These data represent the official election precincts for Ventura County.
poll Point 28 KB Download
These data represent polling places in Ventura County.
school-elem Polygon 33 KB Download
These data represent the boundaries for elementary school districts in Ventura County.
school-scnd Polygon 29 KB Download
These data represent the boundaries for secondary school districts in Ventura County.
senatorial Polygon 100 KB Download
These data represent the boundaries of Senatorial Districts in Ventura County.

File Name Type Size  
supervisor Polygon 576 KB Download
These data represent the current Boundaries and names of Board of Supervisors for Ventura County.
trustee Polygon 81 KB Download
These data represent the boundaries for college board member districts in Ventura County.
NOTE: As a convenience to our visitors, this page may contain links to external websites that are not managed or controlled by the County of Ventura.