The donation was announced Friday afternoon in posts on Instagram and Threads.
It is one of the largest natural disasters in Hawaiis history.
She has been seen handing out pillows and other supplies at a refugee center.
Jeff Bezos and Lauren SanchezMichael Tran / AFP via Getty Images
Winfrey is one of Mauis largest landowners and opened an access road to firefighters battling the blaze.
Residents of Hawaii notoriously have been skeptical of the wealthy mainlanders who have driven up housing prices.
They will be watched closely to see who gives back in Mauis time of need.
Larry Ellison, Mark @zuckKa, where you at!
the group commented on an Instagram post highlighting Winfreys efforts.
President Joe Biden has declared Maui a major disaster area, paving the way for federal assistance.
