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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 on below. This shapefile download includes territories annexed to City of Santa Clarita .

Annexation No. 2018-04 to the City of Santa […]

Reorganization No. 2016-08 ( Detachment from the City of Monrovia , Annexation to the City of Bradbury)

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 includes territories detached from the City of Monrovia and annexed to the City of Bradbury. Overlapping polygons indicate territories that transferred between cities.

Reorganization No. […]

New City of Pomona Reorganization No. 2015-14 (Detachment from Diamond Bar and Annexation to Pomona)

Reorganization No. 2015-14 to the City of Pomona ( Detachment from City of Diamond Bar) became effective April 13, 2017. To download the shapefile of the detachment/annexation boundary, click on the link below. The overlapping polygons indicate territories that transferred between cities.

Reorganization No. 2015-14 to City of Pomona ( Detachment from City of […]

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 documents, maps, and legal descriptions.

Mobile Viewer – Using ArcGIS Online, this map is a little more smart phone friendly.

Open Data – City […]

2011 Supervisorial District Boundaries (Official)

Abstract: This layer contains the 2011 Official Supervisorial District Boundary for the County of Los Angeles, drawn at the parcel level, per Assessor parcels and the County Cadastral Landbase.Download DataDownload the 2011 Supervisorial District Boundaries (zipped shapefile)

Purpose: Supervisorial District Boundary maps for the County of Los Angeles

Supplemental Information: Adopted September […]