Population of Counties in Kentucky (2018)

Name 2018 Population Growth Since 2010
Jefferson County771,1583.93%
Fayette County321,9598.51%
Kenton County165,3993.37%
Boone County130,7289.52%
Warren County128,84512.70%
Hardin County108,0711.05%
Daviess County100,3743.78%
Campbell County92,4882.07%
Madison County91,2269.29%
Bullitt County80,2467.70%
Christian County70,416-5.00%
Oldham County66,4159.94%
McCracken County65,385-0.24%
Pulaski County64,4492.00%
Laurel County60,1742.00%
Pike County58,883-9.51%
Scott County54,87315.88%
Jessamine County53,3759.64%
Franklin County50,4852.48%
Boyd County47,979-3.28%
Shelby County47,42112.22%
Henderson County45,928-0.72%
Nelson County45,6404.62%
Hopkins County45,547-2.76%
Barren County43,8013.98%
Calloway County38,9194.22%
Graves County37,121-0.28%
Floyd County36,271-9.17%
Whitley County36,2141.37%
Clark County36,0461.24%
Greenup County35,518-3.72%
Marshall County31,382-0.21%
Knox County31,227-1.94%
Muhlenberg County30,816-2.65%
Boyle County29,9244.47%
Meade County28,154-1.98%
Montgomery County27,9285.20%
Carter County27,144-2.15%
Logan County27,0600.78%
Bell County26,894-6.32%
Harlan County26,713-8.58%
Perry County26,553-7.43%
Woodford County26,3685.33%
Grayson County26,3582.22%
Taylor County25,4723.24%
Grant County24,9841.23%
Rowan County24,5174.91%
Lincoln County24,456-1.15%
Ohio County24,1821.51%
Johnson County22,594-3.38%
Anderson County22,5445.21%
Letcher County22,339-8.98%
Mercer County21,5210.90%
Allen County20,9334.42%
Wayne County20,716-0.63%
Clay County20,366-5.98%
Breckinridge County20,1110.39%
Bourbon County20,0290.50%
Adair County19,4853.90%
Marion County19,395-2.17%
Harrison County18,781-0.14%
Hart County18,7573.11%
Spencer County18,5078.13%
Simpson County18,1084.45%
Russell County17,7751.15%
Garrard County17,5233.39%
McCreary County17,465-4.69%
Mason County17,174-1.89%
Rockcastle County16,698-2.24%
Henry County16,0064.10%
Casey County15,750-1.43%
Lawrence County15,719-0.92%
Knott County15,291-6.40%
Union County14,668-3.99%
Pendleton County14,573-2.30%
Fleming County14,4460.26%
Trigg County14,4440.80%
Estill County14,277-2.92%
Larue County14,2050.18%
Jackson County13,431-0.39%
Lewis County13,339-3.52%
Morgan County13,188-3.93%
Webster County13,018-4.11%
Breathitt County12,946-6.57%
Butler County12,8310.82%
Caldwell County12,639-2.81%
Magoffin County12,538-5.79%
Bath County12,3786.56%
Powell County12,374-2.14%
Todd County12,243-1.50%
Edmonson County12,2260.11%
Washington County12,1263.42%
Martin County11,452-11.31%
Green County11,065-1.50%
Owen County10,765-0.76%
Carroll County10,713-0.85%
Monroe County10,659-2.83%
Leslie County10,334-8.37%
Clinton County10,2760.31%
Metcalfe County10,107-0.23%
Livingston County9,269-2.64%
McLean County9,201-3.21%
Crittenden County9,084-2.29%
Hancock County8,8012.92%
Gallatin County8,7761.88%
Trimble County8,561-2.85%
Bracken County8,267-2.90%
Lyon County8,082-2.99%
Ballard County8,039-2.69%
Elliott County7,523-4.10%
Wolfe County7,264-1.32%
Nicholas County7,1300.06%
Cumberland County6,706-2.39%
Lee County6,570-14.89%
Menifee County6,4551.38%
Fulton County6,192-9.02%
Carlisle County4,846-4.78%
Hickman County4,520-6.98%
Owsley County4,435-6.59%
Robertson County2,134-6.20%