USS Saint Croix, one of 117 Haskell-class attack transports, was built to a modified Victory ship design at Vancouver, Washington, and was commissioned in December 1944. After shakedown, she left the West Coast in January 1945 for the Southwest Pacific where, in February and March, she carried troops and equipment between Guadalcanal and Florida Island. Saint Croix arrived in New Caledonia at the end of March, and in May transported Army troops from there to Leyte to conduct mop-up operations in the Philippines. In June, July, and August she made three trips bringing additional Soldiers to the Philippines from New Guinea.

In September 1945, after the Japanese surrender, Saint Croix embarked occupation troops in the Philippines and delivered them to Yokohama, Japan. The following month she picked up Marines at Guam and took them to Tsingtao, China. Moving to Indochina, Saint Croix lifted Chinese troops to Formosa in November. She then returned to Manila to embark returning veterans under Operation "Magic Carpet", taking them to San Francisco in December. In February 1946 Saint Croix sailed from the West Coast and served as an advance station ship during Operation "Crossroads," which culminated in two atomic bomb tests at Bikini during July. Returning to the West Coast in August, she made one more voyage to Pearl Harbor in January 1947. In April 1947 she was decommissioned, stricken from the Navy List, and delivered to the Maritime Commission for retention in its reserve fleet. Saint Croix was sold for scrapping in November 1979.