USP Alcatraz was not the "America's Devil's Island" that many books and movies portray. The average population was only about 260-275 (the prison never once reached its capacity of 336 - at any given time, Alcatraz held less than 1 percent of the total Federal prison population). Many prisoners actually considered the living conditions (for instance, always one man to a cell) at Alcatraz to be better than other Federal prisons, and several inmates actually requested a transfer to Alcatraz.