Corsicana, city, seat of Navarro County, northeastern Texas; incorporated 1848. It is a transportation and petroleum-producing center, located in a fertile agricultural region. Among its manufactures are clothing, foodstuffs, and metal and glass products. A junior college is in the city. After the discovery of oil in 1894, the first commercial oil field west of the Mississippi River was established here. The city was named by an early settler in honor of his father's birthplace, the island of Corsica. Population 21,712 (1980); 22,911 (1990); 24,485 (2000).
