Doug McCune translates San Francisco's crime numbers into geographic peaks and valleys:
I’ve used a full year of crime data for San Francisco from 2009 to create these maps. The full dataset can be download from the city’s DataSF website. ...Many of the maps have peaks in the Tenderloin, which is that high area sort of in the north-east center area of the city. Some are extremely concentrated (narcotics) and some are far more spread out (vehicle theft).
My favorite map is the one for prostitution (maybe “favorite” is the wrong choice of words there)...the prostitution arrests are peaking on Shotwell St. at the intersections of 19th and 17th....I love the way the mountain range casts a shadow over much of the city. There’s also a second peak in the Tenderloin (which I’m dubbing Mt. Loin).
(Hat tip: FD)