American Submarine Losses in World War II

  U. S. Own Enemy Enemy Ran Known  
  ASW Torpedo ASW Mines aground but to God Other
Dec-41             Sealion
Jan-42         S-36   S-26 accident
Feb-42           Shark  
Mar-42     Perch*        
Apr-42              
May-42              
Jun-42         S-27    
Jul-42              
Aug-42         S-39 Grunion  
Sep-42              
Oct-42              
Nov-42              
Dec-42              
Jan-43     Argonaut        
Feb-43           Amberjack  
Mar-43           Grampus, Triton
Apr-43     Grenadier* Pickerel      
May-43       Runner      
Jun-43             R-12 accident
Jul-43              
Aug-43       Pompano      
Sep-43           Grayling, Cisco  
Oct-43 Dorado   S-44, Wahoo        
Nov-43     Corvina, Sculpin*     Capelin
Dec-43              
Jan-44       Scorpion      
Feb-44     Grayback, Trout      
Mar-44   Tullibee          
Apr-44     Gudgeon        
May-44              
Jun-44     Herring Golet      
Jul-44       Robalo     S-28 accident
Aug-44     Harder Flier      
Sep-44              
Oct-44 Seawolf Tang Shark II Escolar Darter    
Nov-44     Growler Albacore   Scamp  
Dec-44              
Jan-45     Swordfish        
Feb-45     Barbel        
Mar-45           Kete, Trigger
Apr-45           Snook  
May-45     Lagarto        
Jun-45     Bonefish        
Jul-45              
Aug-45     Bullhead        
Crewmen note 1 note 2 note 2 note 2 note 3 note 1 note 3

ASW is anti submarine weapons
* So damaged was scuttled; most crewmen became POWs
note 1: All crewmen were lost.
note 2: There were a few survivors but most crewmen were lost.
note 3: Many to all crewmen were saved by friendly forces.
USS Lagarto found and explored; documentary film from Wisconsin Maritime Museum: wisconsinmaritime.org