I guess street crimes are more frequent in areas where there is an higher concentration of people/shops/bars etc. I can't say I see a definite correlation with

I guess street crimes are more frequent in areas where there is an higher concentration of people/shops/bars etc. I can't say I see a definite correlation with altitude: areas that are more secluded from the main SF buzz like the Marina and the west coast show very little crime, and they are basically at sea level.