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Orange County City and Special District Boundaries
I was informed that high quality boundary files for cities and special districts in Orange County are available from Orange County LAFCO’s website.
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US Forest Service Enterprise Data
If you are looking for data from the US Forest Service, you can go to their Enterprise Data download location. I recently downloaded the boundaries of the new San Gabriel Mountains National Monument...
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Public Safety Answering Point Boundaries
This dataset shows the geographic boundaries of public safety answering points, tied to correct/legal city boundaries. These geographic boundaries determine where an emergency call is routed,...
View ArticleTax Rate Area Polygons
Summary The Tax Rate Area Polygon file shows the boundaries of Tax Rate Areas, which is used by the Assessor to assign tax rates to properties. When joined with the Tax Rate Area Table, it can be used...
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Board Approved Statistical Areas (Communities) – Final Draft
Board Approved Statistical Areas provide a common geographic boundary for reporting departmental statistics for unincorporated areas to the Board of Supervisors. They are not designed to perfectly...
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Split 2010 Block Group/City – BASA
This dataset contains 2010 Block Groups, updated to improve geographic accuracy, split by City boundaries for each year since 2010. It is a foundation-level dataset that is used to create many other...
View ArticlePublic GIS Mapping Services
We are making a number of our GIS data layers available as public mapping services based upon ESRI’s ArcGIS Server technologies at this URL (http://public.gis.lacounty.gov/public/rest/services). More...
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US Maritime Limits and Boundaries
Maritime Limits and boundaries are available as downloads from NOAA at this site: http://www.nauticalcharts.noaa.gov/csdl/mbound.htm (look for the Static Data Downloads below the map). Maritime limits...
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Oil and Gas GIS Data
The Bureau of Ocean Energy Management (BOEM) promotes energy independence, environmental protection and economic development through responsible, science-based management of offshore conventional and...
View ArticleSanta Monica Mountains Local Coastal Plan – GIS layers
These are the main layers that were used in the mapping and analysis for the Santa Monica Mountains Local Coastal Plan, which was adopted by the Board of Supervisors on August 26, 2014, and certified...
View ArticleProposed City Reorganizations (Annexations/Detachments)
City of Pomona- Annexation No.2015-09 (LAFCO No. 2019-01PR)The following table provides some information on “Proposed City Reorganizations” (Annexations/Detachments) within Los Angeles County which...
View ArticleLandscape Maintenance Districts Zones
This layer contains the boundaries for all of the Landscape Maintenance District Zones in the unincorporated LA County. A Landscape Maintenance District is a special district formed to provide...
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Reorganization No. 2016-08 ( Detachment from the City of Monrovia ,...
Reorganization No. 2016-08 to the City of Bradbury became effective January 11, 2018. To download the shapefile of the detachment/annexation boundary, click on the link below. This shapefile download...
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Annexation No. 2018-04 to the City of Santa Clarita
Annexation No. 2018-04 to the City of Santa Clarita (Plum Canyon, Skyline Ranch, and North San Canyon) became effective on November 15 2018. To download the shapefile of this annexation, please click...
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Annexation No. 2015-09 to the City of Pomona
Annexation No. 2015-09 to the City of Pomona became effective January 16, 2019. To download the shapefile of this annexation, please click on below. This shapefile download includes territories...
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Reorganization No. 2018-03 to the City of Arcadia
Reorganization No. 2018-03 to the City of Arcadia (PARCEL 1 -Detached from City of Arcadia) Reorganization No.2018-03 to the City of Arcadia-(PARCEL 2- Annexed to City of Arcadia) Download:...
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City Boundaries and Annexations/Detachments
View City Annexations/Detachments Online Desktop Viewer – Use this application to search, view, and download county/city/annexation/detachment boundaries as well as recorded annexation/detachment...
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