Marietta is a city and county seat in Love County, Oklahoma, United States. The population was 2,626 at the 2010 census, a 7.4 percent bump from the figure of 2,445 in 2000. Marietta is ration of the Ardmore, Oklahoma, Micropolitan Statistical Area. For tourism purposes, the Oklahoma Department of Tourism includes it in ‘Chickasaw Country’. It is moreover a ration of the Texoma region.

Settlers were attracted by the fruitful land near the Red River, which was conducive to agriculture and cattle raising. Cotton speedily became the principal crop. William “Bill” Washington had the largest cattle ranch in Pickens County, Chickasaw Nation, Indian Territory. Bill’s brother, Jeremiah Calvin Washington(Jerry), who lived nearly a mile north of present-day Marietta upon the Washington Ranch which has a historical marker and is lived in by a Washington descendant’s lengthy family, became the town’s first postmaster once the state office opened on December 20, 1887. He was a banker and gentleman rancher. A local story claims that the town was named for Jerry’s wife, Marietta Love Washington.

At the epoch of its founding, Marietta was located in Pickens County, Chickasaw Nation.

The Gulf, Colorado and Santa Fe Railway (later the Atchison, Topeka and Santa Fe Railway) laid its rail stock in in advance 1887, stimulating economic mass for the innovative town of Marietta, Indian Territory. The first train ran July 28, 1887.