Bush, the 41st president of the United States, lived longer than any of his predecessors.
His death at 10:10 p.m. Central time was announced in a statement issued by longtime spokesman Jim McGrath, Reuters reported.
The cause of his death was not immediately available. In 2012, he announced that he had vascular Parkinsonism, a condition that limited his mobility. His wife of 73 years, Barbara Bush, died on April 17.