Texoma Educators Federal Credit Union is a full-service financial institution serving Grayson County, Texas, and Bryan, Marshall and Atoka counties in Oklahoma. We offer membership to the entire Texoma community, wherever you work! As a non-profit, we are focused on competitive rates and convenient services. At TEFCU, you are a member, not a customer. Our main office is in Sherman, Texas, and we have full-service branches in Denison, Texas and Durant, Okla. The Texoma Educators name honors our heritage as a credit union established in 1957 to serve employees of area schools.