Mural in Mangum


101 South Oklahoma
P.O. Box 400 
Mangum, OK 73554

Phone: (580) 782-5555 
Fax: (580) 782-3821


Monday - Thursday
Lobby: 8 a.m. - 2 p.m.
Drive-Thru: 8 a.m. - 4 p.m.

Lobby: 8 a.m. - 2 p.m.
Drive-Thru: 8 a.m. - 6 p.m.


Branch President: Clint Lively

Clint Lively has been president of the Mangum branch since 2019. Clint started at Great Plains Bank in 2014 as a loan officer after working in the health care finance industry. A Mangum, Oklahoma native, Clint graduated from Southwestern Oklahoma State University in 2010. When he isn’t coaching his children’s sports teams, Clint enjoys having cookouts and serving on community boards and committees in Greer County.