Only one of the class, USS PC-566 commanded by Lieutenant Commander (later Captain) Herbert G. Claudius, actually sank a submarine, U-166, during World War II;[1] however, the website 'Patrol Craft Sailors Association' cites PC-461-class ships sinking or assisting sinking up to 6 German and Japanese subs.

[5] An unknown member of the class still survives as of June 17th, 2021 in the Columbia River just north of the Troutdale Airport.

[1] As part of the Lend-Lease program enacted by President Franklin D. Roosevelt, a total of 46 PC-461s were lent to allies of the United States.

Thirty-two were sent to France, 10+ (3 to cannibalized for spare parts and 1 to private owner -George Simmonuti- as yacht in 1967) to Venezuela,[6] 8 to Brazil,[7] 1 to Uruguay, 1 to Norway, 1 to the Netherlands, and 1 to Greece.

Eighteen were completed as Adroit-class minesweepers (AM) but their performance as such was judged to be unsatisfactory and they were converted back to the PC configuration.