It did not ever win the award. It was published in 1961, so it would have been up for the 1962 awards. Here is the list from 1962:
1962 Medal Winner: The Bronze Bow by Elizabeth George Speare (Houghton)
Honor Books:
No Phantom Tollbooth. Sad.
"The Phantom Tollbooth" by Norton Juster won the Newbery Medal in 1962.
The Newbery Medal was first awarded in 1922.
The Newbery Medal was proposed by Frederic G. Melcher in the year 1921.
The first Newbery Medal was awarded in 1922.
The Newbery Medal was first awarded in 1922.
The Newbery Medal was first awarded in 1922.
"Bud, Not Buddy" received the Newbery Medal in the year 2000.
One book a year can win the Newbery Medal. Up to 5 books a year can earn the Newbery Honor Award.
One book receives the Newbery Medal each year. There may be up to three Newbery Honor books each year.
The Newbery Medal was first awarded in 1922 by the American Library Association.
The Giver by Lois Lowry won the Newbery Medal in 1994.
The Witch of Blackbird Pond won the Newbery Medal in 1959.
Number the Stars won the Newbery Medal in 1990.