In The Religion of Science Fiction, Frederick A. Kreuziger explores the theory of history implied by Dick's creation of the two alternate realities:
"Neither of the two worlds, however, the revised version of the outcome of WWII nor the fictional account of our present world, is anywhere near similar to the world we are familiar with. But they could be! This is what the book is about. The book argues that this world, described twice, although differently each time, is exactly the world we know and are familiar with. Indeed, it is the only world we know: the world of chance, luck, fate."
Avram Davidson praised the novel as a "superior work of fiction", citing Dick's use of the I Ching as "fascinating". Davidson concluded that "It's all here—extrapolation, suspense, action, art, philosophy, plot, [and] character."
The Man in the High Castle secured for Dick the 1963 Hugo Award for Best Novel.
A new paperback edition of the novel was published in 1992 by Vintage Books.