[guelo]

Having crime spread into rich neighborhoods instead of being concentrated in only poor neighborhoods seems like a positive for residents overall since the more affluent neighborhoods have more resources to deal with it. Unless when you say "residents" you mean only the rich ones like yourself.

[djcapelis]

It's an interesting question of how that shakes out! Here's the map of police districts: http://sf-police.org/index.aspx?page=868

You'll notice the Tenderloin (a high crime area) has its own station partitioned off from the rest of the districts. The others are also interesting. The Mission station for instance, serves a really broad community which includes both the Mission District (currently undergoing gentrification) and the Castro (gentrification complete). On the other hand, districts like Bayview, Ingleside, Taraval and Richmond are just larger, generally more residential and less in the center of everything. The Park and Northern districts on the other hand, are mostly affluent with a few outliers.