Founded in 1848, Corsicana was named by Jose Antonio Navarro after the Mediterranean island of Corsica, the birthplace of his father, who died when Navarro and his many siblings were young.There is also a popular green park a short walk from the county courthouse downtown, with meandering creeks, walking, jogging and bike trails, lighted tennis courts, a children's play area with a retired fire truck, spray park, and designated skate area. At one end of the community park is the town YMCA, with a year-round indoor pool, basketball courts, cardio- and free-weight equipment, and instructor-led fitness workshops. Corsicana is a city in Navarro County, Texas, United States. It is located on Interstate 45 some fifty-five miles south of downtown Dallas. The population was 24,485 at the 2000 census. It is the county seat of Navarro County.