[1][4] The credit union began as Hillsborough County Teachers Credit Union on January 31, 1934, with the intention to help teachers working in Hillsborough County.
The credit union amended its charter in 1953 to open membership to teachers in the nearby Citrus, DeSoto, Hardee, Hernando, and Pasco counties.
[4] In December 2019, the credit union was in the process of purchasing Apollo Bank, which was expected to be completed by May 2020.
The purchase would have been Florida's largest-ever bank acquisition by a credit union.
[6] Suncoast Credit Union reached one million members in December 2021, becoming the 10th credit union in the United States to reach one million members.