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Native Tree Restoration Priority Planning Areas

Los Angeles County Native Tree Restoration Mitigation and Priority Planting Plan Los Angeles County Contract (with RCDSMM) #SPF03-03

These layers are for use in determining where to plant native trees in the Santa Monica Mountains National Recreation Area (SMMNRA) for restoration or mitigation purposes, given the fact that the climate is changing and many native […]

Scenic Highways

Description Adopted and Proposed Scenic Highways from Caltrans (click here for more information) Updated 4/20/17 for a newly adopted scenic highway.

Data can be downloaded here:

Download Shapefile (.zip)

OpenStreetMap (OSM) California Downloads

Download: OSM California Streets, etc. (Geofabrik)

Download: OSM Land Polygons (Jochen Topf and Christoph Hormann)

OpenStreetMap (OSM) is built by a community of mappers that contribute and maintain data about roads, trails, cafes, railway stations, and much more, all over the world. Luckily, Geofabrik, a German-based consulting firm regularly […]

Planet Labs releases open California imagery datasets

Planet Labs captures imagery from micro-satellites – they have made imagery for California Open for use.

I didn’t have the opportunity to see exactly how to get the data into my apps and desktop, but here is the web page: https://www.planet.com/open-california.

From their page:

Frequently Asked Questions What data is included in […]

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.

LA Times GIS Data

LA Times aggregates a number of datasets, along with an API for accessing them.

Of greatest interest to most folks is the LA Times Neighborhood dataset (click here to access), as well as the LA County Regions.

Click here to go to the datasets


Orange County GIS Data

Orange County now has a data portal for downloading GIS data, including parcels, road lines, etc. This looks like a very nice capability. You have to register to access the data, but it’s a great step forward: Click here to access

As well, Orange County Transportation Authority has a website to download […]

Business Locations

Data Licensed from US Data Depot showing the location, type, size, and other attributes for over 720,000 businesses in Los Angeles County. This data is for internal County use only and cannot be provided to external agencies. Pricing for this data is available at the US Data Depot Website. […]

Guide to Replacing Thomas Brothers

The County of Los Angeles has embarked on projects to replace the data it has historically licensed from Thomas Brothers with data that it owns and maintains internally. This will allow the County to distribute, update, and improve this data without current restrictions. The layer by layer comparison is listed below, and in the guide […]

Job Growth information by Zipcode

The Institute for Spatial Economic Analysis (ISEA) at the University Redlands provides monthly updates of job growth for California. These are estimates but the maps are valuable.

I wanted to place this here while I attempt to contact them and gather an ongoing transfer of information to make the data available in raw […]

World Climate Data (past, present, future)


WorldClim is a set of global climate layers (climate grids) with a spatial resolution of a square kilometer. They can be used for mapping and spatial modeling in a GIS or other computer programs. If you are not familiar with such programs, you can tryDIVA-GIS.

The database is documented in this […]

Census Cartographic Boundary Files

We do not have this data; but since we get a lot of requests for census tracts or other census data for our County, it seems logical to have a link here. This data is available from the US Census Bureau. 2010 data is not yet available.

Here’s the link to their download page: