California Weed

Where marijuana is being grown in SLO County

While 455 marijuana grow sites are registered with San Luis Obispo County, only 267 were approved as of mid-July 2017.

Here’s a look at where those 267 sites are distributed around the county. About 180 of them are in California Valley near the Carrizo Plain National Monument.


San Luis Obispo supervisors are considering a ban on cannabis farming in California Valley as part of a package of regulations for commercial cannabis activities that could go into effect as soon as October. Growing operations may be put out of business even sooner because county code enforcement officers have determined that some farms in the valley are allegedly in violation of county code rules.

Read our series of stories exploring marijuana in San Luis Obispo County, and the issues facing the county, as well as growers and others who are benefiting from the new economy in California Valley:

»» Marijuana boom in jeopardy as SLO County considers ban in California Valley

»» Marijuana farms tap into Carrizo Plain’s scarce water — and SLO County is worried

»» Marijuana farms are a threat to endangered critters on Carrizo Plain, officials say

»» What takes more water to produce: Glass of wine, hamburger patty — or a joint?