East Valley and North Valley are about the safest places to rent or purchase in Phoenix. In Phoenix we have great neighborhoods too where crime is nominal. The listing next to the school grades will say low crime, no crime or heavy crime and they list crimes involved.
Unfortunately, there is no zip code without any crime. There are certain areas that have very little crime but the most important is not to focus on the crime statistics because in the most beautiful areas there is more crime activity heavier because it attracts thieves and others with bad motives. Be sure to look at schools and resale if you are buying or have children this is very important. Are you new to the area?
I work in this area. The most crime I've seen is near the Camelback Collonade with shoplifters. There is a moderate amount of car collisions though as the 51 runs through this area and increases traffic counts; especially during rush hours.