List of kentucky counties by size Bordering States: List of bordering states of each state: 5. Since the last census in 2010, Robertson County has had a growth rate of -6. The area is in square miles and the density is people per square mile. Of these counties, Warren County had the most rapid growth with a growth rate of 14. Despite ranking 37th in size by area, Kentucky has 120 counties, fourth among states (including Virginia's independent cities). County sizes vary significantly across the U. Home » Geography » Countries » United States » States » Kansas - Maryland » Kentucky Number of cities/towns/villages: 425: Number of counties: 120: Population: 4500000: Area: 104656 km²: Density: 43 people/km²: Altitude: 1263 m: Major cities There are 120 counties in the U. com. It was abolished when it formed the State of Kentucky in 1780. They are all census county divisions (CCDs), which are Dive in, and discover the myriad stories and traditions that Kentucky proudly showcases. zxjmoubblpjmchjujsqtxjgprdmnfcnnqcvrvblwcibwdfkgtyovouftdxhyjepnu