| Year | Date | Historical Events |
| 1941 | Nov 26 | Keel laid down by the Maitowoc Shipbuilding Co., Manitowoc, WI. |
| 1942 | Aug 15 | Launched. |
| 1943 | Mar 17 | Commissioned with LCDR. E. C. Hawk in command.
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| | Apr 5 | Pompon began her voyage down the Mississippi River to New Orleans, LA. in a floating drydock. |
| | Jul 10 | Pompon departed Brisbane, Australia for her 1st war patrol in the Truk area. She formed a scouting line with other submarines to cover 7th Fleet operations. |
| | Jul 25 | Pompon seized the opportunity and torpedoed the 5,871 ton cargo ship Thames Maru. In the same action two more attacks damaged a second transport and also a smaller transport. |
| | Aug 22 | Pompon returned to Brisbane, Australia. |
| | Sep 12 | Pompon departed Brisbane, Australia on 2nd war patrol to the South China Sea North of Singapore. She was fired on by a friendly libety ship, but no damage was done. |
| | Nov 5 | Pompon returned to Fremantle, Australia for supplies. |
| | Nov 29 | Pompon began her 3rd war patrol to the China Sea area off French Indo-China. She sank 2 radio equippped Japanese motor sampans by gunfire and mined waters Southwest of Cochin, China. |
| 1944 | Jan 28 | Pompon returned to Darwin, Australia, for fuel. |
| | Feb 22 | Pompon began her 4th war patrol and operated in the vicinity of Halmahera Island. She fired 4 torpedoes at 3 small Japanese escort vessels, but they were to shallow for the torpedoes to hit. |
| | Apr 10 | Pompon arrived Pearl Harbor, HI. for refit and 4 days training. |
| | May 6 | Pompon departed for her 5th war patrol off the coast of Kyushu, Skikoku and Honshu. |
| | May 30 | Pompon contacted a 742 ton cargo ship off Muroto Zaki. A submerged attack resulted in a hit directly under the rising sun flag amidships, breaking the ship in two. The Shiga Maru immediately sank. |
| | Jun 25 | After covering the Tokyo Bay approaches for the Battle for Saipan, Pompon returned to Midway Island. |
| | Jul 19 | Pompon departed on her 6th and most successful war patrol. Off the Eastern coast of Honshu to the Sea of Okhotsk she sank a 300 ton armed trawler with gunfire. |
| | Aug 12 | Pompon spotted a Japanese convoy off the coast of Russian Sakhalin. In the wild night surface action, she badly damaged a tanker with two torpedoes. The 2,718 ton transport Mikage Maru No. 20 was sunk. |
| | Sep 3 | Pompon returned to Pearl Harbor, HI. for onward routing to San Francisco, CA. for modernization and overhaul at the Mare Island Naval Shipyard, Vallejo, CA. |
| | Dec 13 | Pompon departed for her 7th war patrol and while enroute to Majuro, she picked up a Filipino who had been drifting in a broken motor launch for 45 days. |
| 1945 | Jan 6 | Pompon departed Majuro as part of a wolf pack for patrol in the Yellow Sea. |
| | Jan 28 | Pompon contacted a 3 ship convoy with 4 escorts off Kokuzan To. With Spadefish in contact, the Pompon made two submerged night approaches only to have the alert escorts drive her off each time. |
| | Jan 29 | While making a morning trim dive, the conning tower hatch failed. Pompon had reached a depth of 44 feet, completely flooding the pump room. While she crept homeward, she blundered into an enemy convoy forcing her to dive, but she managed to escape. |
| | Feb 11 | Pogy found Pompon one day out of Midway and led her in. |
| | Mar 30 | Pompon departed Midway Island for her 8th war patrol area along the coasts of China and Formosa. Her only contacts, a motor sampan, a hospital ship, and 106 planes, provided excellent diving experience, but poor hunting. |
| | May 24 | Pompon arrived at Guam, Marianas Island. |
| | Jun 18 | During Pompon's 9th and last war patrol she operated as lifeguard in the Truk area. There were not ship contacts and few plane contacts. |
| | Jul 22 | Pompon returned to Guam, Marianas Island, which is where she was when the news of the war's end came. |
| | Aug 22 | Pompon began her homeward voyage. |
| | Sep 19 | Pompon arrived at New Orleans, LA. |
| 1946 | May 11 | Pompon was decommissioned and placed in the US Atlantic Reserve Fleet, New London Group. |
| 1953 | Jun 15 | Pompon was recommissioned after conversion to the latest type radar picket submarine, SSR-267. |
| | Nov 15 | Pompon departed from new home port of Norfolk, VA., for the Mediterranean where she operated with the 6th Fleet until Feb. 1954. |
| 1955 | Jan 1 | Pompon departed the Virginia Capes area for the Caribbean. |
| 1956 | Feb 1 | Pompon returned to the Caribbean. |
| | Jul 6 | Pompon operated in the Mediterranean From 6 July to 3 October. |
| 1957 | Sep 1 | Pompon participated in the large scale NATO exercise "Stickeback", visiting the Clyde River, Scotland; Le Havre, France; and Portland, England. |
| 1958 | Sep 30 | Pompon returned to Norfolk, VA. and operated off the East Coast. |
| 1959 | Feb 2 | Pompon was placed "In Commission, In Reserve" at Charleston, SC. |
| 1960 | Apr 1 | Pompon was decommissioned and struck from the Naval Register. |
| | Nov 25 | Pompon was sold to Commercial Metals Co. |