Miller is a populated place LOCATED WITHIN the City of Gary. In turn, the City of Gary is located within Lake County.
Miller is located at latitude 41.602 and longitude -87.258. The elevation of Miller is 600 feet above mean sea level.
Since Miller is located within the City of Gary, all of the census and demographic data for residents of Miller are included as part of the information reported for City of Gary in the "Data" tab above.