Although Brasília is used as a synonym for the Federal District through synecdoche, the Federal District is composed of 31 administrative regions, only one of which is the area of the originally planned city, also called Plano Piloto.
Selvom Brasília bruges som synonym for hele det føderale distrikt Distrito Federal, udgøres Distrito Federal af 31 administrative regioner, hvoraf kun Plano Piloto-regionen omfatter den oprindelige, planlagte by Brasília.