From 3 January to 1 March 1945, Portland participated in the operations at Lingayen Gulf and Corregidor.
Arriving off Lingayen Gulf on 5 January, and bombarding the vicinity of Cape Bolinao, she entered the Gulf the same day and commenced bombardment of the eastern shore but discontinued immediately when a large wave of Japanese kamikaze planes approached.
Portland entered Manila Bay on 15 February, and bombarded the south shore of Corregidor in preparation for landings there.
She returned to Leyte Gulf on 1 March for repairs and replenishment, having seen five months of continuous action.

From 26 March to 20 April, she joined Task Force 54 (TF 54), which conducted shore bombardments of Okinawa in support of the Allied landings during the Okinawa campaign.
The Japanese air arm had been decimated by this point in the war, and the lack of trained and experienced pilots led to the most extensive deployment of the kamikaze; Portland endured 24 air raids, shot down four Japanese aircraft, and assisted in downing two others.
From 8 May to 17 June, she supported ground forces on Okinawa providing artillery support for ground forces, departing on 17 June for maintenance at Leyte before returning to Buckner Bay on 6 August, where she remained conducting shore bombardments until the end of the war.
From 3 January to 1 March 1945, Portland participated in the operations at Lingayen Gulf and Corregidor. Arriving off Lingayen Gulf on 5 January, and bombarding the vicinity of Cape Bolinao, she entered the Gulf the same day and commenced bombardment of the eastern shore but discontinued immediately when a large wave of Japanese kamikaze planes approached. Portland entered Manila Bay on 15 February, and bombarded the south shore of Corregidor in preparation for landings there. She returned to Leyte Gulf on 1 March for repairs and replenishment, having seen five months of continuous action.
From 26 March to 20 April, she joined Task Force 54 (TF 54), which conducted shore bombardments of Okinawa in support of the Allied landings during the Okinawa campaign. The Japanese air arm had been decimated by this point in the war, and the lack of trained and experienced pilots led to the most extensive deployment of the kamikaze; Portland endured 24 air raids, shot down four Japanese aircraft, and assisted in downing two others. From 8 May to 17 June, she supported ground forces on Okinawa providing artillery support for ground forces, departing on 17 June for maintenance at Leyte before returning to Buckner Bay on 6 August, where she remained conducting shore bombardments until the end of the war.
USS Portland (CA-33)