RANKING · 2020 CENSUS · 120 SHOWN OF 120

Largest by population, Kentucky counties · 2020

The most populous us counties as of the 2023 estimates. This list covers the 120 counties in Kentucky that qualify, ranked against each other statewide.

KentuckyAll states All rankings

SAME RANKING BYCities States Metros ZIP codes

RELATEDFastest growing Fastest shrinking Most densely populated Most sparsely populated Best broadband access Worst broadband access

YEAR1990 2000 2010 2020 2025

RANKPLACESTATEPOPTOTAL POPULATIONVS 2000

01Jefferson County, KYKY795,222782,969+13%

02Fayette County, KYKY329,751322,570+24%

03Kenton County, KYKY175,779169,064+12%

04Boone County, KYKY145,316135,968+58%

05Warren County, KYKY149,375134,554+45%

06Hardin County, KYKY113,482110,702+18%

07Daviess County, KYKY104,898103,312+13%

08Campbell County, KYKY95,44193,076+5%

09Madison County, KYKY101,69692,701+31%

10Bullitt County, KYKY86,45482,217+34%

11Christian County, KYKY70,11572,748+1%

12McCracken County, KYKY67,55367,875+4%

13Oldham County, KYKY70,98667,607+46%

14Pulaski County, KYKY67,38465,034+16%

15Laurel County, KYKY63,74662,613+19%

16Pike County, KYKY54,72158,669−15%

17Scott County, KYKY62,26257,155+73%

18Jessamine County, KYKY57,14752,991+36%

19Franklin County, KYKY52,64951,541+8%

20Boyd County, KYKY47,75148,261−3%

21Shelby County, KYKY51,24348,065+44%

22Nelson County, KYKY49,03646,738+25%

23Hopkins County, KYKY45,12745,423−2%

24Henderson County, KYKY44,25544,793−0%

25Barren County, KYKY45,64144,485+17%

26Calloway County, KYKY39,42137,103+9%

27Clark County, KYKY37,88836,972+12%

28Whitley County, KYKY37,29736,712+2%

29Graves County, KYKY37,05036,649−1%

30Greenup County, KYKY35,21335,962−3%

31Floyd County, KYKY34,40135,942−15%

32Marshall County, KYKY31,65931,659+5%

33Muhlenberg County, KYKY30,63430,928−3%

34Boyle County, KYKY31,63230,614+11%

35Knox County, KYKY29,53230,193−5%

36Meade County, KYKY30,69930,003+14%

37Perry County, KYKY26,55528,473−3%

38Montgomery County, KYKY28,82228,114+25%

39Logan County, KYKY28,66927,432+3%

40Woodford County, KYKY27,88326,871+16%

41Harlan County, KYKY24,72526,831−19%

42Carter County, KYKY26,14926,627−1%

43Grayson County, KYKY27,40626,420+10%

44Taylor County, KYKY26,76326,023+14%

45Grant County, KYKY26,18124,941+11%

46Rowan County, KYKY24,47624,662+12%

47Lincoln County, KYKY25,35324,275+4%

48Bell County, KYKY22,82924,097−20%

49Anderson County, KYKY25,22523,852+25%

50Ohio County, KYKY23,93423,772+4%

51Johnson County, KYKY22,05122,680−3%

52Mercer County, KYKY23,73322,641+9%

53Letcher County, KYKY19,95221,548−15%

54Allen County, KYKY22,53620,588+16%

55Breckinridge County, KYKY21,50320,432+10%

56Clay County, KYKY19,46520,345−17%

57Bourbon County, KYKY20,24320,252+5%

58Simpson County, KYKY20,78819,594+19%

59Marion County, KYKY20,11519,581+8%

60Wayne County, KYKY19,59719,555−2%

61Spencer County, KYKY20,99819,490+66%

62Hart County, KYKY20,11719,288+11%

63Adair County, KYKY19,42318,903+10%

64Harrison County, KYKY19,62718,692+4%

65Russell County, KYKY18,60817,991+10%

66Mason County, KYKY16,93617,120+2%

67Garrard County, KYKY18,20716,953+15%

68McCreary County, KYKY17,12416,888−1%

69Lawrence County, KYKY15,76516,293+5%

70Rockcastle County, KYKY16,14816,037−3%

71Casey County, KYKY16,20515,941+3%

72Henry County, KYKY16,44715,678+4%

73Fleming County, KYKY15,78715,082+9%

74Larue County, KYKY15,18414,867+11%

75Pendleton County, KYKY14,80014,644+2%

76Knott County, KYKY13,32114,251−19%

77Estill County, KYKY13,96214,163−7%

78Trigg County, KYKY14,51214,061+12%

79Morgan County, KYKY14,41513,726−2%

80Breathitt County, KYKY12,55813,718−15%

81Union County, KYKY12,83913,668−13%

82Powell County, KYKY12,81213,129−1%

83Lewis County, KYKY12,90113,080−7%

84Webster County, KYKY12,92913,017−8%

85Jackson County, KYKY13,32512,955−4%

86Bath County, KYKY13,17612,750+15%

87Caldwell County, KYKY12,60912,649−3%

88Butler County, KYKY12,52012,371−5%

89Todd County, KYKY12,97212,243+2%

90Edmonson County, KYKY12,74912,126+4%

91Washington County, KYKY12,36812,027+10%

92Magoffin County, KYKY11,11011,637−13%

93Monroe County, KYKY11,19111,338−4%

94Martin County, KYKY10,69711,287−10%

95Owen County, KYKY11,60111,278+7%

96Green County, KYKY11,64411,107−4%

97Carroll County, KYKY11,14110,810+6%

98Leslie County, KYKY9,62710,513−15%

99Metcalfe County, KYKY10,58310,286+2%

100Clinton County, KYKY9,1399,253−4%

101McLean County, KYKY9,0649,152−8%

102Hancock County, KYKY9,0509,095+8%

103Crittenden County, KYKY8,8078,990−4%

104Livingston County, KYKY8,8638,888−9%

105Gallatin County, KYKY8,8408,690+10%

106Lyon County, KYKY9,1238,680+7%

107Trimble County, KYKY8,7018,474+4%

108Bracken County, KYKY8,5118,400+1%

109Ballard County, KYKY7,5947,728−7%

110Nicholas County, KYKY7,9497,537+11%

111Lee County, KYKY7,2977,395−7%

112Elliott County, KYKY7,2657,354+9%

113Wolfe County, KYKY6,2986,562−7%

114Fulton County, KYKY6,2186,515−16%

115Menifee County, KYKY6,4306,113−7%

116Cumberland County, KYKY5,9925,888−18%

117Carlisle County, KYKY4,7474,826−10%

118Hickman County, KYKY4,3724,521−14%

119Owsley County, KYKY3,9324,051−17%

120Robertson County, KYKY2,3252,193−3%

SHOWING 1–120 OF 120

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UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES