The battleship bombarded Iwo Jima from 19–22 February in support of the invasion there before escorting carriers which sent aircraft raids against Tokyo and targets on the island of Kyūshū. On 24 March and 19 April, "Washington" bombarded Okinawa; she then departed for Puget Sound to receive a refit, having been in action for the majority of the time since its refit in March–April 1944. This lasted through V-J Day and the subsequent formal ceremony aboard "Missouri", so "Washington" received orders to voyage to Philadelphia, where she arrived on 17 October. Here she was modified to have an additional 145 bunks, so that she could participate in Operation Magic Carpet. Sailing to Southampton with a reduced crew of 84 officers and 835 crew, she brought 185 army officers and 1,479 enlisted men back to the United States; this was the only voyage she would make in support of the operation. The battleship was placed into reserve at Bayonne, New Jersey on 27 June 1947, after only a little more than six years of service. "Washington" was never reactivated. Struck from the Naval Vessel Register on 1 June 1960—exactly 21 years to the day since her launch—she was sold on 24 May 1961 to be scrapped.