What is a Census-designated place

According to our reading at Census.gov, basically it’s a community without an official local (town/city) government and has a name used for statistical purposes.

Census designated places (CDPs) are statistical geographic entities representing closely settled, unincorporated communities that are locally recognized and identified by name. They are the statistical equivalents of incorporated places, with the primary differences being the lack of a legally defined boundary and an active, functioning governmental structure, chartered by the state and administered by elected officials.

https://www.federalregister.gov/documents/2018/11/13/2018-24571/census-designated-places-cdps-for-the-2020-census-final-criteria

Get a lot more info at Wikipedia