Captain John J. Arenstam, a native of Plymouth, Massachusetts, graduated from the U.S. Coast Guard Academy in 1987 with a Bachelorís degree in Mathematics and Computer Science. Upon receiving his commission, Captain Arenstam was assigned as Operations Officer aboard USCGC MARIPOSA (WLB 397) in Detroit, MI.
In 1989, Captain Arenstam was transferred to Coos Bay, OR, where he served as Operations Officer aboard USCGC CITRUS (WMEC 300). In 1992, Captain Arenstam transferred to the Fifth Coast Guard District in Portsmouth, VA where he worked in the Aids to Navigation branch. From 1995 through 1998 he served as Commanding Officer of USCGC PENOBSCOT BAY (WTGB 107) out of Governorís Island, NY and Bayonne, NJ.
In 1998, Captain Arenstam transferred to Coast Guard Headquarters in Washington DC where he worked in the International Affairs Office. As part of his duties, Captain Arenstam traveled to sixteen countries facilitating international training and technical assistance. While assigned to USCG Headquarters, Captain Arenstam earned a Masters Degree in Operations Research from The George Washington University.
Captain Arenstam moved to Kodiak, AK and assumed command of USCGC FIREBUSH (WLB 393) in July of 2001 through July 2003. Captain Arenstam was Chief of Waterways Management Branch for the 8th CG District from 2007-2010 after serving as AtoN Program Manager in USCG HQ for four years.
In May 2010, Captain Arenstam assumed his current duties as Deputy Sector Commander, Sector New Orleans Captain Arenstamís wife Rose Mary is a native of Mobile, AL. They have three children Joshua (18), Julia (16), and Jacob (13).