Agat Guam zip code list includes a total of 1 zip code listed below. Agat city is located within the Guam territory state of the United States. The zip code for Agat, Guam is 96915. It is a small village situated on the island’s southern coast, near Apra Harbor. Agat is known for its picturesque beaches and historical sites, including the Agat Marina and the Agat Catholic Church. The village is also home to several restaurants, convenience stores, and other local businesses. Additionally, the War in the Pacific National Historical Park, which preserves and interprets the sites and stories of the Pacific War, is located in Agat.