Cochran is a city in Bleckley County, Georgia, United States. As of the 2010 census, the city had a population of 5,150. The city is the county seat of Bleckley County.Cochran is named for Judge Arthur E. Cochran and was incorporated on March 19, 1869. Judge Cochran was largely instrumental in developing this section of Georgia through his work as president of the Macon and Brunswick Railroad, now the Southern Railway. Once known as Dykesboro, Cochran was settled by B. B. Dykes, who owned the site on which the town is built. The earliest settlers located here to work in the turpentine industry.Cochran is home to Bleckley County High School and Middle Georgia State University. Three properties in Cochran are listed on the National Register of Historic Places: the Bleckley County Courthouse in Courthouse Square, the Cochran Municipal Building and School at the junction of Dykes and Second streets, and Hillcrest at 706 Beech Street.