Personal fireworks are banned in most incorporated areas, but in unincorporated areas you can usually have the ones that don't leave the ground or just explode, like sparklers and fountains.
The sad thing is that there will be some stupid idiot who just can't
celebrate the 4th without shooting off his own, and will burn down the other half of the state.
Personal fireworks of all types are legal in Wyoming, a 2 hour drive from here. Well, except Laramie County (where Cheyenne is) has banned fireworks for their county. So the fireworks sellers in Wyoming can't sell to anyone with Laramie County license plates (they have counties designated by number on their plates so it is easy to tell), but they can still sell to Colorado residents even though it is banned in the entire state here.
Commerce at its finest.