I just found an excellent website for looking up neighborhood statistics and information. I checked to see what the past 30 days of crime in my neighborhood looked like:
Theft from vehicles: 17 incidents 47% of all crime reported in my zip code! This is by far the easiest crime to commit and the easiest to prevent. Do not keep anything of value in your car. Junkies are notorious for smashing windows and stealing any visible items like CDs, iPods, GPS units.