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What California counties have the most crime and how much does it cost to live there?

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At its peak in 1991, the number of murders was 24,703, according to the FBI. In 2013, the country had 14,196 murders, a 4.4 percent decrease from the year before. The bad news: In many corners of the country, crime is still a big problem — and it’s hard to quantify.

The FBI’s Uniform Crime Report has arguably been the most comprehensive and organized collection of crime data to date, which is why many have turned to it as a source. Using the numbers from the 2013 report, FindTheHome was able to visualize the report and find where the most violent crime per 100,000 people occurs in California. A few things to note:

A violent crime includes murder, rape (legacy or revised definition depending on your state), robbery or aggravated assault.

A crime is classified under either city or county jurisdiction (never both), so FindTheHome added city and county crimes together to come up with a number for the county as a whole.

The report does not include reporting agencies that don’t comply with the national UCR guidelines.

San Francisco County is the most crime-ridden county, with 864.1 violent crimes per 100,000 people. The most common crime is robberies, with 4,202 total reported cases. Alameda County follows, with 740.7 violent crimes per 100,000 people.


Interestingly, San Francisco county has the highest violent crime rate — and the highest median home sale price.

Visualizations provided by Graphiq.