Greenbriar is a populated place LOCATED WITHIN the City of Glendale. In turn, the City of Glendale is located within Maricopa County.
Greenbriar is located at latitude 33.584 and longitude -112.165.
Since Greenbriar is located within the City of Glendale, all of the census and demographic data for residents of Greenbriar are included as part of the information reported for City of Glendale in the "Profile" tab above.