Local

• City of Anaheim GIS
• City of Azusa GIS
• City of Beverly Hills GIS
• City of Burbank GIS
• City of Carson GIS
• City of Culver City GIS
• City of Diamond Bar GIS
• City of El Segundo GIS
• City of Fullerton GIS
• City of Glendale Maps
• City of Hermosa Beach Maps
• City of Huntington Beach Maps
• City of Industry GIS
• City of Inglewood GIS
• City of Irvine GIS
• City of Laguna Beach GIS
• City of Lakewood Maps
• City of Lancaster Maps
• City of Long Beach GIS
• City of Los Angeles GIS
• City of Manhattan Beach GIS
• City of Newport Beach GIS
• City of Orange GIS
• City of Palmdale GIS
• City of Pasadena Maps
• City of Pomona GIS
• City of Rancho Palos Verdes GIS
• City of Redondo Beach Maps
• City of Santa Clarita GIS
• City of Santa Monica GIS
• City of South Pasadena Maps
• City of Torrance GIS
• City of West Covina GIS
• City of Whittier GIS

Regional

• Los Angeles County Assessor Property Assessment Information System
• Los Angeles County Department of Public Works Land Records Information
• Los Angeles County Department of Regional Planning Maps and GIS
• Los Angeles County GIS Data Portal
• Los Angeles County Enterprise GIS
• Los Angeles County Sanitation District Maps and GIS Data
• Los Angeles Metropolitan Transportation Agency (MTA)
• Los Angeles MTA GIS Data Download
• Orange County GIS
• Orange County Public Works GIS Maps
• Orange County Open Data Portal
• Orange County Transportation Authority GIS Open Data
• San Bernardino County Department of Public Works GIS
• South Bay Cities Council of Governments (SBCCOG)
• South Coast Air Quality Management District (AQMD)
• Southern California Association of Governments (SCAG)
• Southern California Association of Governments GIS Data Services
• Southern California Coastal Water Research Project (SCCWRP) Data Portal
• URISA Southern California Chapter
• Water Replenishment District of Southern California Well Search

State

• California Coastal Records Project Aerial Photos
• California Geographic Information Association and GIS Contacts Map
• California Geographical Society
• California GIS Council
• California Map Society
• Caltrans GIS Data Library
• State of California Department of Conservation
• State of California Department of Fish and Wildlife GIS Services
• State of California Geological Survey
• State of California GeoPortal
• State of California Map Services

National

• Bureau of Transportation Statistics
• Data.gov Geospatial
• DOT
• DOT National Pipeline Mapping System
• EPA
• FEMA
• FEMA Map Service Center
• FHWA GIS Transportation Data
• FRA Maps and Data
• NASA Earth Observation Data
• NOAA Digital Coast Data
• NRCS Web Soil Survey (California data)
• US Census Bureau
• USDA Forest Service Active Fire Mapping Program
• USDA Forest Service Geodata Clearinghouse
• USGS
• USGS TopoView Historical Topographic Map Collection
• USGS National Map Advanced Viewer
• USGS National Map Data Download
• USGS/AASG National Geologic Map Database

Education

• Antelope Valley College GIS Certificate Program
• California State Polytechnic University Pomona GIS Certificate Program
• California State University Fullerton GIS Certificate Program
• California State University Long Beach MS GIS Program
• California State University Los Angeles GIS Certificate Program
• California State University Northridge GIS Program
• California State University San Bernardino GIS Certificate Program
• Claremont Graduate University GIS Program
• Cypress College GIS Certificate Program
• Mt. San Jacinto College GIS Program
• Palomar College GIS Certificate Program
• Pasadena City College GeoTech Certificate Program
• Pierce College GIS Certificate Program
• Rio Hondo College GIS Certificate Program
• San Bernardino Valley College GIS Certificate Program
• San Diego Mesa College GIS Program
• San Diego State University GIS Certificate Program
• UCLA GIS and Geospatial Technology Certificate Program
• UCR GIS Certificate Program
• UCSB Spatial Studies
• University of Redlands GIS Program
• USC GIS Program
• Ventura College GIS Program

Other

• American Association of Geographers (AAG)
• American Society of Photogrammetry and Remote Sensing (ASPRS)
• Association of Pacific Coast Geographers (APCG)
• ESRI ArcGIS Resources
• Geospatial Information and Technology Association (GITA)
• GIS Encyclopedia (Wiki.GIS.com)
• Latitude Geographics Geocortex
• Open GIS Consortium (OGC)
• Open Source Geospatial Foundation (OSGeo)
• QGIS Open Source Geographic Information System