An unincorporated area is a region that is not governed by a local municipal corporation. There are many unincorporated communities and areas in the United States and Canada.
Sign prohibiting entry to the Boletice Military Training Area
Nutbush, an unincorporated area in Haywood County, Tennessee
Rosslyn, one of many high-rise neighborhoods in Arlington County, Virginia. The county has no cities within its borders, and five times the population density of the state's most populous city, Virginia Beach.
A hamlet is a human settlement that is smaller than a town or village. This is often simply an informal description of a smaller settlement or possibly a subdivision or satellite entity to a larger settlement.
The hamlet Weiler Oberwil in Waldkirch, Switzerland
The hamlet Kampung Naga in West Java Province, Indonesia
Haynes Church End in Bedfordshire