Situated in Jackson County, Eldorado is located seven miles north of the Red River. Its post office was established in 1890, but the town shifted locations several times before being permanently located along the railroad line, which was completed in 1904.
 
 
Recommended Resources
The public school administrative district in Eldorado, Oklahoma offers a curriculum for grades pre-kindergarten through grade twelve, operating an elementary school, junior high school and high school in a single campus. Its academic and athletic programs are highlighted.
http://eldoradoschool.weebly.com/
The town's official web site features a history of the town, genealogical data, and a current profile, along with a guide to local businesses, churches, schools, organizations, and contacts.
http://www.eldoradoisok.com/