Iowa, the 29th state, was admitted to the Union, 28 December 1846, and was named for a Sioux Indian tribe that originally inhabited the Missouri Territory.
The third Iowa (BB-61) was laid down at New York. Navy Yard, 27 June 1940; launched 27 August 1942; sponsored by Mrs. Henry A. Wallace, wife of Vice President Wallace, and commissioned 22 February 1943, Capt. John L. McCrea in command.
On 24 February, Iowa put to sea for shakedown in Chesapeake Bay and along the Atlantic coast. She got underway, 27 August for Argentia, Newfoundland to neutralize the threat of German Battleship Tirpitz which was reportedly operating in Norwegian waters.
In the fall, Iowa carried President Franklin D. Roosevelt to Casablanca, French Morocco on the first leg of his journey to the Teheran Conference in November. After the conference she returned the President to the United States.
As Flagship of Battleship Division 7, Iowa departed the United States 2 January 1944 for the Pacific Theatre and her combat debut in the campaign for the Marshalls. From 29 January to 3 February, she supported carrier air strikes made by Rear Admiral Frederick C. Sherman's task group against Kwajalein and Eniwetok Atolls in the Marshall Islands. Her next assignment was to support air strikes against the Japanese Naval base at Truk, Caroline Islands. Iowa, in company with other ships was detached from the support group 16 February, 1944 to conduct an anti-shipping sweep around Truk to destroy enemy naval vessels escaping to the north. On 21 February, she was underway with Fast Carrier Task Force 58 while it conducted the first strikes against Saipan, Tinian, Rota, and Guam in the Marianas.
On 18 March, Iowa, flying the flag of Vice Admiral Willis A. Lee, Commander Battleships, Pacific, joined in the bombardment of Mili Atoll in the Marshall Islands. Although struck by two Japanese 4.7" projectiles during the action, Iowa suffered negligible damage. She then rejoined Task Force 58, 30 March, and supported air strikes against the Palau Islands and Woleai of the Carolines which continued for several days.
From 22 to 28 April 1944, Iowa supported air raids on Hollandia, Aitape, and Wakde Islands to support Army forces on Aitape, Tanahmerah Bay, and Humboldt Bay in New Guinea. She then joined the Task Force's second strike on Truk, 29-30 April, and bombarded Japanese facilities on Ponape in the Carolines, 1 May.
In the opening phases of the Marianas campaign, Iowa protected the flattops during air strikes on the islands of Saipan, Tinian, Guam, Rota, and Pagan, 12 June. Iowa was then detached to bombard enemy installations on Saipan and Tinian, 13-14 June. On 19 June, in an engagement known as the Battle of the Philippine Sea, Iowa, as part of the battle line of Fast Carrier Task Force 58, helped repel four massive air raids launched by the Japanese Middle Fleet. This resulted in the almost complete destruction of Japanese carrier-based aircraft. Iowa then joined in the pursuit of the fleeing enemy Fleet, shooting down one torpedo plane and assisting in splashing another.
Thoroughout July, Iowa remained off the Marianas supporting air strikes on the Palaus and landings on Guam. After a month's rest, Iowa sortied from Eniwetok as part of the 3d Fleet, and helped support the landings on Peleliu, 17 September. She then protected the carriers during air strikes against the Central Philippines to neutralize enemy air power for the long awaited invasion of the Philippines. On 10 October, Iowa arrived off Okinawa for a series of air strikes on the Ryukyus and Formosa. She then supported air strikes against Luzon, 18 October and continued this vital duty during General MacArthur's landing on Leyte 20 October.
In a last ditch attempt to halt the United States campaign to recapture the Philippines, the Japanese Navy struck back with a three-pronged attack aimed at the destruction of American amphibious forces in Leyte Gulf. Iowa accompanied TF-38 during attacks against the Japanese Central Force as it steamed through the Sibuyan Sea toward San Bernardino Strait The reported results of these attacks and the apparent retreat of the Japanese Central Force led Admiral Halsey to believe that this force had been ruined as an effective fighting group. Iowa, with Task Force 38, steamed after the Japanese Northern Force off Cape Engano, Luzon. On 25 October 1944, when the ships of the Northern Force were almost within range of Iowa's guns, word arrived that the Japanese Central Force was attacking a group of American escort carriers off Samar. This threat to the American beachheads forced her to reverse course and steam to support the vulnerable "baby carriers." However, the valiant fight put up by the escort carriers and their screen had already caused the Japaneses to retire and Iowa was denied a surface action. Following the Battle for Leyte Gulf, Iowa remained in the waters off the Philippines screening carriers during strikes against Luzon and Formosa. She sailed for the West Coast late in December 1944.
Iowa arrived San Francisco, 15 January 1945, for overhaul. She sailed 19 March 1945 for Okinawa, arriving 15 April 1945. Commencing 24 April 1945, Iowa supported carrier operations which assured American troops vital air superiority during their struggle for that bitterly contested island. She then supported air strikes off southern Kyushu from 25 May to 13 June 1945. Iowa participated in strikes on the Japanese homeland 14-15 July and bombarded Muroran, Hokkaido, destroying steel mills and other targets. The city of Hitachi on Honshu was given the same treatment on the night of 17-18 July 1945. Iowa continued to support fast carrier strikes until the cessation of hostilities, 15 August 1945.
Iowa entered Tokyo Bay with the occupation forces, 29 August 1945. After serving as Admiral William F. Halsey's flagship for the surrender ceremony, 2 September 1945, Iowa departed Tokyo Bay 20 September 1945 for the United States.
Arriving Seattle, Wash., 15 October 1945, Iowa returned to Japanese waters in January 1946 and became flagship of the 5th Fleet. She continued this role until she sailed for the United States 25 March 1946. From that time on, until September 1948, Iowa operated from West Coast ports, on Naval Reserve and at sea training and drills and maneuvers with the Fleet. Iowa, decommissioned 24 March 1949. After Communist aggression in Korea necessitated an expansion of the active fleet, Iowa recommissioned 25 August 1951, Captain William R. Smedberg III in command. She operated off the West Coast until March 1952, when she sailed for the Far East. On 1 April 1952, Iowa became the flagship of Vice Admiral Robert T. Briscoe, Commander, 7th Fleet, and departed Yokosuka, Japan to support United Nations Forces in Korea. From 8 April to 16 October 1952, Iowa was involved in combat operations off the East Coast of Korea. Her primary mission was to aid ground troops, by bombarding enemy targets at Songjin, Hungnam, and Kojo, North Korea. During this time, Admiral Briscoe was relieved as Commander, 7th Fleet. Vice Admiral J. J. Clark, the new commander, continued to use Iowa as his flagship until 17 October 1952. Iowa departed Yokosuka, Japan 19 October 1952 for overhaul at Norfolk and training operations in the Caribbean Sea.
Iowa embarked midshipmen for at sea training to Northern Europe, July 1953, and immediately after took part in Operation "Mariner," a major NATO exercise, serving as flagship of Vice Admiral E. T. Woolfidge, commanding the 2d Fleet. Upon completion of this exercise, until the fall of 1954, Iowa operated in the Virginia Capes area. In September 1954, she became the flagship of Rear Admiral R. E. Libby, Commander, Battleship-Cruiser Force, U.S. Atlantic Fleet.
From January to April 1955, Iowa made an extended cruise to the Mediterranean as the first battleship regularly assigned to Commander, 6th Fleet. Iowa, departed on a midshipman training cruise 1 June 1955 and upon her return, she entered Norfolk for a 4-mouth overhaul. Following refit, Iowa continued intermittent training cruises and operational exercises, until 4 January 1957 when she departed Norfolk for duty with the 6th Fleet in the Mediterranean. Upon completion of this deployment, Iowa embarked midshipmen for a South American training cruise and joined in the International Naval Review off Hampton Roads, Va., 13 June 1957.
On 3 September 1957, Iowa sailed for Scotland for NATO Operation "Strikeback." She returned to Norfolk, 28 September 1957 and departed Hampton Roads for the Philadelphia Naval Shipyard, 22 October 1957. She decommissioned 24 February 1958 and entered the Atlantic Reserve Fleet at Philadelphia, where she remains.
Iowa earned nine battle stars for World War II service and two for Korean service.
Iowa is eligible for listing in the National Register of Historic Places.
Detailed history under construction.