Tishomingo is the largest city and the county seat of Johnston County, Oklahoma, United States. The population was 3,034 at the 2010 census, a decline of 4.1 percent from 3,162 at the 2000 census. It was the first capital of the Chickasaw Nation, from 1856 until Oklahoma statehood in 1907. It is home of country music star Blake Shelton. The city is home to Murray State College, a community college with an annual enrollment of 1,600 students. Tishomingo is part of the Texoma Region.
Tishomingo is located at 34°14′8″N 96°40′39″W (34.235575, -96.677542). It is 31 miles (50 km) east of Ardmore and 115 miles (185 km) southeast of Oklahoma City. According to the United States Census Bureau, the city has a total area of 4.8 square miles (12.3 km²), of which, 4.7 square miles (12.2 km²) of it is land and 0.04 square miles (0.1 km²) of it (0.63%) is water.
As of the census of 2000, there were 3,162 people, 1,218 households, and 768 families residing in the city. The population density was 671.0 people per square mile (259.2/km²). There were 1,407 housing units at an average density of 298.6 per square mile (115.3/km²). The racial makeup of the city was 73.12% White, 4.65% African American, 15.24% Native American, 0.44% Asian, 0.03% Pacific Islander, 0.98% from other races, and 5.53% from two or more races. Hispanic or Latino of any race were 3.04% of the population.