Texoma is an interstate region in the United States, split between Oklahoma and Texas. The name is a portmanteau of Texas and Oklahoma. Businesses use the term in their names to describe their intended service area. This includes 8 counties with a population estimate of 319,455. Definition Texoma is usually defined as the area on either side of the state border along the Red River valley, in particular the area around Lake Texoma. The surrounding area is alternatively referred to as Texomaland. The Wichita Falls–Lawton and Paris–Hugo areas are often included in Texoma or Texomaland due to their proximity to the Red River and the Texas/Oklahoma border. Texoma mainly comprises the area and cities surrounding Lake Texoma, which includes eight counties. Much of the population is concentrated in the Sherman–Denison Metropolitan Statistical Area and three Micropolitan Statistical Areas. The area around Bonham is also populous. Most of the region is also part of the Dallas–Fort Worth Combined Statistical Area. A portion of Texoma south of Lake Texoma has been designated an American Viticultural Area, the Texoma AVA. The Texas part of Texoma is served by the Texoma Council of Governments. Notable cities Other cities and towns in Oklahoma Achille, Oklahoma Altus, Oklahoma Ardmore, Oklahoma Armstrong, Oklahoma Bennington, Oklahoma Bromide, Oklahoma Bokchito, Oklahoma Caddo, Oklahoma Calera, Oklahoma Colbert, Oklahoma Dickson, Oklahoma Duncan, Oklahoma Gene Autry, Oklahoma Healdton, Oklahoma Hugo, Oklahoma Hendrix, Oklahoma Kemp, Oklahoma Kenefic, Oklahoma Kingston, Oklahoma Lawton, Oklahoma Leon, Oklahoma Lone Grove, Oklahoma Marietta, Oklahoma Madill, Oklahoma Mannsville, Oklahoma Mead, Oklahoma Milburn, Oklahoma Mill Creek, Oklahoma New Woodville, Oklahoma Oakland, Oklahoma Ratliff City, Oklahoma Ravia, Oklahoma Silo, Oklahoma Soper, Oklahoma Springer, Oklahoma Tatums, Oklahoma Thackerville, Oklahoma Tishomingo, Oklahoma Wapanucka, Oklahoma Wilson, Oklahoma in Texas Archer City, Texas Bailey, Texas Bells, Texas Bowie, Texas Burkburnett, Texas Callisburg, Texas Childress, Texas Collinsville, Texas Crowell, Texas Decatur, Texas Dodd City, Texas Dorchester, Texas Ector, Texas Electra, Texas Forestburg, Texas Gunter, Texas Gainesville, Texas Honey Grove, Texas Howe, Texas Henrietta, Texas Jacksboro, Texas Ladonia, Texas Leonard, Texas Lindsay, Texas Montague, Texas Muenster, Texas Nocona, Texas Oak Ridge, Texas Paris, Texas Pecan Gap, Texas Pottsboro, Texas Quanah, Texas Ravenna, Texas Sadler, Texas Savoy, Texas Scotland, Texas Seymour, Texas Sherman, Texas Southmayd, Texas Sunset, Texas Tioga, Texas Tom Bean, Texas Trenton, Texas Valley View, Texas Van Alstyne, Texas Vernon, Texas Windom, Texas Windthorst, Texas Whitesboro, Texas Whitewright, Texas Wichita Falls, Texas Counties and statistical areas