The CDP acronym stands for Census Designated Place. It's usually a small community that collects population statistics and has defined borders, but is not incorporated as a city or a town.
The term CDP is used by the U.S. Census Bureau to describe an unincorporated area that is much likes a town or community, but doesn't have a formal government.
The status of CDP allows the Census Bureau to collect and publish data about these communities as if they were incorporated places like cities or towns.
CDPs may be small communities or large suburban areas. They are essential in understanding population distribution and regional demographics in USA.