What vocal range is Maria from west side story?

Answer 1

Well,she was a dramatic soprano with a vocal range near 3 octave its. She reached C6 in casta diva and we can see her singing that high note C6 easily she never screamed at all. It means she reached higher notes without falsetto

In the Mexico City performance of Verdi's Aida (available on CD) she went up to the Eb over high C at the end of the Triumphal scene. Only one or two sopranos in history have ever done that. It's a stunt, as Verdi has the voice go down after a high Bb.