Newspapers showed pictures of celebrated radio, film and television personality Bing Crosby adding a bit of glamor to the launching.

Oregon City became flagship of the United States Fourth Fleet on 3 July and the following month began dockside training of reservists in Philadelphia.

From 6 to 19 October she made a post-war Reserve Training Cruise, to Bermuda, then sailed to Boston and remained until the following March with a somewhat reduced complement.

Reassigned to the 2nd Fleet in January 1947, Oregon City's crew had returned to full strength by the time she sailed for Guantanamo Bay 30 March.

She was stricken 1 November 1970, and sold 17 September 1973 to Union Minerals and Alloys Corporation, NYC, and scrapped in Kearny, New Jersey the following year.