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Greetings, Pablo, You are allowed to have one Place Page for each city in which you have a unique physical address and unique local area code phone number. Some people do choose to list a few service area cities by name in the Additional Details section of the Place Page, but don't go overboard with this. There is no 'legal' limit, set by Google, but there is some thought that if you do too much of this, it can result in a drop in your rank. I would advise you to remember that it is your website, and not your Place Page, that has the greatest impact on rank. Because of this, I would keep the Place Page simple, and use the pages of your website for optimizing for multiple cities in which you serve.