A group of places that have many things in common is called a cluster or a collection.
A group of places that have many things in common is called a cluster or a region.
A group of places with many things in common is called a cluster or a region.
A Region.
A Region.
Confederation
Classify is the answer when you classify things your grouping them together if they are the same.
it is called a Region
The group of states in the southeastern region of the United States is called so because of their location in the southeastern part of the country. These states share common geographical and cultural characteristics that distinguish them from other regions.
A group of twelve things is called a dozen.
region
A group of families having a common ancestor may be called a clan, a tribe, or a clade.