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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 provides current regional downloads of this data, like this one of California:

Not related to Geofabrik, the other useful site above provides land polygons, which are very useful.

If we are not familiar with openstreetmap.org, many of us may already be familiar with OSM base maps used in other places like ArcGIS Online, MapBox, CartoDB, and several others. What sets OSM apart from familiar commercial online map services is its copyright that allows free use and redistribution of its data. Note that OSM’s data are freely usable, but its tile servers are not.

Using GIS Data on this site

GIS Data downloaded from this site generally requires GIS software to view. Click here for a list of GIS Data Viewers

GIS data available on this website is provided AS IS - please read the GIS Data Portal Terms of Use

Data Field Descriptions

GIS Source Information
Database Name:
Feature Class Name:
Feature Dataset Name (if applicable):
Reference Date:
Accuracy: TIGER
Update Frequency: As Needed
Access Constraints:None

Contact Information
John Hickok
Principal GIS Analyst
Los Angeles County
Children and Family Services


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