Plano is a CDP in Warren County, Kentucky, United States. The population at the 2020 census was 1,223. The elevation is 610 feet. Plano is located at coordinates 36°52'40"N 86°24'58"W. According to the United States Census Bureau, Plano has a total area of 2.67 km² of which 2.66 km² is land and 0.01 km² is water.