Optima is a town in Texas County, Oklahoma, United States. As of the 2020 census, the town’s population was 338. Optima is located approximately nine miles northeast of Guymon on U.S. Route 54 in the Oklahoma Panhandle. The course of the Beaver River runs about two miles south of the community and enters Optima Lake about nine mil…Optima is a town in Texas County, Oklahoma, United States. As of the 2020 census, the town’s population was 338. Optima is located approximately nine miles northeast of Guymon on U.S. Route 54 in the Oklahoma Panhandle. The course of the Beaver River runs about two miles south of the community and enters Optima Lake about nine miles to the southeast. It is on the route of the Union Pacific Railroad.