Font Size:

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  
assessor_books Polygon 772 KB Download
These data represent Assessor Book boundaries. Created from assessor parcel polygons.
centerline Line 9.30 MB Download
These data represent the approximate centerline of the right-of-way, including public and private streets, and railroads in Ventura County.  Also contains street names, addresses and zip codes.
frwy_xchng Line 425 KB Download
These data represent freeway and highway interchanges, access roads, offramps and bridges for major roads in Ventura County.
islands Polygon 34 KB Download
These data represent the Channel Islands located in Ventura County, including Anacapa, San Nicolas islands and that porttion of Santa Cruz island that falls within Ventura County. Santa Barbara Island is not included.
MasterAddressPoints Point 11.4 MB Download
This shapefile represents address points for Ventura County. The Assessor data was combined with various city provided address points for nearly complete coverage of assessor parcels.
merged_rec_reference Point 657 KB Download
These data represent survey record points consisting of MR, PM, RS and Corner Record numbers.
 natl_forest_bdy Polygon 11 KB Download
These data represent the outer boundary for the Los Padres National Forest within Ventura County.
parcel Polygon 61.7 MB Download
These data represent the Assessor's Parcel boundaries for Ventura County.  Assessor's parcels are used to determine tax rates, and do not necessarily represent legal parcels, as tax rates may vary within a legal parcel. Includes all parcel data.
pcl_map Line 1.21 MB Download
These data represent Parcel Map (PM) boundary lines that do not cross the right of way.
precise_cntln Line 5.04 MB Download
These data represent center lines based on record information.

File Name Type Size  
private_st_arc Line 10.1 MB Download
These data represent Private Streets in Ventura County.
private_st_poly Polygon 6.42 MB Download
This data set represents Private Streets in Ventura County.
railroad_rw Polygon 85 KB Download
These data represent the width of right-of-way for railroad tracks in Ventura County.
rancho_bdy Polygon 21 KB Download
These data represent historical rancho boundaries of Ventura County.
rights-of-way Polygon 25.7 MB Download
These data represent rights-of-way for roads in Ventura County. This information was generated from the parcel GIS layer.
rivers_streams Line 676 KB Download
These data represent rivers and smaller streams.
sect_corner Line 303 KB Download
These data represent corners of government sections utilizing the Public Land (township and range) Survey system, which indicate how land was initially divided for sale in Ventura County.
sect_corner_anno Point 45 KB Download
These data represent represents text features indicating section numbers at corners of government sections utilizing the Public Land (township and range) Survey system.
township_range_sections Polygon 135 KB Download
These data represent township sections of Ventura County..
twnshp_range Polygon 32 KB Download
These data represent Township and Ranges in Ventura County.
File Name Type Size  
tr_map Line 3.18 MB Download
These data represent subdivision boundary lines that do not cross the right of way.
vcar Polygon 2.75 MB Download
These data represent boundary polygon for Ventura County, which indicates the extent of GIS data coverage for the County. Plus portions of surrounding Counties and a portion of the Pacific Ocean.
venco Polygon 57 KB Download
These data represent boundary polygon for Ventura County, which indicates the extent of GIS data coverage for the County. Plus portions of surrounding Counties and a portion of the Pacific Ocean.
water_bodies Polygon 123 KB Download
These data represent water features in Ventura County, including lakes, harbors, marinas, and other various bodies of water.
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.