A map of california where each county is a different shade that corresponds to the per capita violent crime rate from 2013. Darker shades indicate a higher violent crime rate while lighter shades indicate a lower crime rate. The county with the lowest rate is Placer County with a rate of 1.8 violent crimes per 1,000 people. The county with the highest rate is San Francisco County with a rate of 8.6 violent crimes per 1,000 people.