Orange County has a new Open Data Portal. You can explore by categories, like boundaries, cadaster, environment, health, infrastructure, etc., or just type a search, like “parcels” or “street centerlines”. There are also links to feature apps and paper maps too. Check it out!
SoCalGIS.org
Southern California Government GIS User Group – Working together locally in GIS
This greatly needed doing. OC needs to have quality data like we are long used to for LA.