HawaiiUSA first opened on November 6, 1936 Oahu Teachers No. 3 Federal Credit Union, a not-for-profit federally insured financial cooperative owned and operated by its members servicing elementary school teachers in the Honolulu District and all teachers from every grade level in rural Oahu. HawaiiUSA membership includes individuals—and their family members— in the field of education including employees, retirees, students and their parents of a majority of schools on Oahu, Maui, and the Big Island, as well as a large number of companies and associational groups.