I lived in the Scottsdale Grayhawk area which is really safe. I still have the condo in the Vintage@Grayhawk subdivision which is a gated community. Most of the residents there used the condos as second (or possibly third) homes, so for most of the year, I was one of the few people around.
There are HOA members that live in the development and are constantly keeping an eye on the area as well as the Grayhawk security which would make rounds daily.
This area is great because it's literally minutes from the major highway and the North Scottsdale amenities including shopping, restaurants, spas and more. I currently live in North Phoenix by the Anthem area mentioned in other posts, and we always revert back to North Scottsdale when we go out. I miss the location but I needed the space of a house due to our growing family, but the condo I lived in is perfect for two people with enough space to not be stepping all over each other.
I am including a link to a condo I'm selling that is in the Vintage subdivision. If you do check out the area, please contact me and I will arrange a showing if you're interested in that type of property. I can be reached at 623.217.2376.