It is not accurate to say that camping is illegal anywhere in Arizona. However, there are specific rules and regulations regarding where you can camp. Camping is generally permitted in designated campgrounds, state parks, national forests, and on Bureau of Land Management (BLM) land, as well as some private lands. Always check local regulations and obtain necessary permits before camping to ensure you are following the law and respecting the environment.
For a list of campgrounds in Arizona, you can visit Hipcamp's Arizona camping page.