These are the ten cities in Arizona that Safewise identifies as being the safest places to live in 2021. Florence. Oro Valley, courtesy of Wikimedia Commons and Philcomanforterie. Gilbert, courtesy of Wikimedia Commons/Philcomanforterie. 69-71 in Wikimedia Commons under the user Marine. San Luis. Facebook page belonging to the City of San Luis, Arizona. Sahuarita. Surprise. Somerton. Lake Havasu City.