Warren County is a county located in the south central portion of the U.S. state of Kentucky. As of the 2020 census, the population was 134,554, making it the fifth-most populous county in Kentucky. The county seat is Bowling Green. Warren County is now classified as a wet county after voters approved the measure in 2018. The measure became law in J…Warren County is a county located in the south central portion of the U.S. state of Kentucky. As of the 2020 census, the population was 134,554, making it the fifth-most populous county in Kentucky. The county seat is Bowling Green. Warren County is now classified as a wet county after voters approved the measure in 2018. The measure became law in January 2019 that allows alcohol to be sold county wide.