* The official language of Naples is Italian.
* English is primarily used in tourist areas and for business purposes.
* English proficiency varies widely among the population. Younger generations are more likely to have some exposure to English, but it's not a guarantee.
So, if you're planning a trip to Naples, it's best to learn some basic Italian phrases to help you communicate with locals. You might find that many people will try to help you even if they don't speak fluent English.