Preston Hills is a populated place LOCATED WITHIN the City of Scottsdale. In turn, the City of Scottsdale is located within Maricopa County.
Preston Hills is located at latitude 33.585 and longitude -111.867.
Since Preston Hills is located within the City of Scottsdale, all of the census and demographic data for residents of Preston Hills are included as part of the information reported for City of Scottsdale in the "Profile" tab above.