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I have color coded each county based on the percentage of the voters who voted for legalizing Marijuana for the recreational use. If you live in Bay Area, you know everybody smokes almost publicly already. So it's nothing surprising here. But still, it's amazing to see that the percentage of 'yes' are very high especially in Bay Area counties compared to others.
Data: California Secretary of State (http://www.sos.ca.gov/elections/prior-elections/statewide-election-results/general-election-november-8-2016/statement-vote/)