Meta Business Help Centre
About reaching audiences in major cities
Meta allows you to choose whether you want to target your ads to people in cities of high population density or outside cities if you are looking to deliver ads to smaller population areas.
Targeting people in cities is a great option for businesses that operate brick-and-mortar shops that are only present in these cities.
You can also choose to target people in areas outside major cities. This is useful for businesses that want to test expansion in markets they may not necessary know much about, for example, and for businesses that only offer their goods or services outside major cities.