Census ACS 2023 · 120 counties
Largest Counties in Kentucky
Kentucky has 120 counties with Census data available. The largest is Jefferson County with a population of 777,392. County-level data is important because counties are the primary unit of local government in most states, responsible for courts, elections, public health, and infrastructure. Population distribution across counties reveals where growth is concentrated and where rural decline may be occurring.
Source: Census ACS 2023 5-Year Estimates
| # | County | Population | Median Income |
|---|---|---|---|
| 1 | Woodford County | 27,017 | $80,006 |
| 2 | Wolfe County | 6,484 | $29,052 |
| 3 | Whitley County | 36,755 | $41,719 |
| 4 | Webster County | 12,873 | $58,786 |
| 5 | Wayne County | 19,592 | $41,933 |
| 6 | Washington County | 12,091 | $59,762 |
| 7 | Warren County | 137,549 | $64,801 |
| 8 | Union County | 13,379 | $60,989 |
| 9 | Trimble County | 8,531 | $67,813 |
| 10 | Trigg County | 14,211 | $54,630 |
| 11 | Todd County | 12,330 | $57,759 |
| 12 | Taylor County | 26,205 | $61,871 |
| 13 | Spencer County | 19,875 | $98,333 |
| 14 | Simpson County | 19,786 | $57,392 |
| 15 | Shelby County | 48,599 | $82,671 |
| 16 | Scott County | 58,269 | $83,660 |
| 17 | Russell County | 18,117 | $50,520 |
| 18 | Rowan County | 24,525 | $53,657 |
| 19 | Rockcastle County | 16,144 | $48,367 |
| 20 | Robertson County | 2,239 | $52,337 |
| 21 | Pulaski County | 65,503 | $50,943 |
| 22 | Powell County | 13,057 | $39,811 |
| 23 | Pike County | 57,466 | $42,179 |
| 24 | Perry County | 27,847 | $45,261 |
| 25 | Pendleton County | 14,683 | $66,601 |
| 26 | Owsley County | 4,021 | $31,064 |
| 27 | Owen County | 11,270 | $59,706 |
| 28 | Oldham County | 68,600 | $121,491 |
| 29 | Ohio County | 23,704 | $54,369 |
| 30 | Nicholas County | 7,655 | $53,616 |
| 31 | Nelson County | 47,102 | $67,888 |
| 32 | Muhlenberg County | 30,712 | $52,672 |
| 33 | Morgan County | 13,938 | $47,493 |
| 34 | Montgomery County | 28,271 | $57,468 |
| 35 | Monroe County | 11,318 | $49,430 |
| 36 | Metcalfe County | 10,372 | $48,572 |
| 37 | Mercer County | 22,824 | $63,115 |
| 38 | Menifee County | 6,203 | $44,672 |
| 39 | Meade County | 30,032 | $70,163 |
| 40 | McLean County | 9,127 | $70,549 |
| 41 | McCreary County | 16,905 | $37,355 |
| 42 | McCracken County | 67,584 | $62,385 |
| 43 | Mason County | 16,995 | $51,473 |
| 44 | Martin County | 11,181 | $46,185 |
| 45 | Marshall County | 31,728 | $63,611 |
| 46 | Marion County | 19,680 | $55,404 |
| 47 | Magoffin County | 11,495 | $33,632 |
| 48 | Madison County | 94,064 | $62,407 |
| 49 | Lyon County | 8,831 | $64,464 |
| 50 | Logan County | 27,731 | $61,535 |
| 51 | Livingston County | 8,941 | $59,713 |
| 52 | Lincoln County | 24,415 | $50,862 |
| 53 | Lewis County | 13,028 | $41,632 |
| 54 | Letcher County | 21,146 | $40,501 |
| 55 | Leslie County | 10,261 | $40,176 |
| 56 | Lee County | 7,375 | $34,182 |
| 57 | Lawrence County | 16,171 | $45,584 |
| 58 | Laurel County | 62,731 | $56,999 |
| 59 | Larue County | 15,028 | $67,770 |
| 60 | Knox County | 30,034 | $33,153 |
| 61 | Knott County | 14,046 | $37,736 |
| 62 | Kenton County | 169,817 | $79,421 |
| 63 | Johnson County | 22,464 | $43,014 |
| 64 | Jessamine County | 53,792 | $74,886 |
| 65 | Jefferson County | 777,392 | $67,849 |
| 66 | Jackson County | 13,003 | $41,410 |
| 67 | Hopkins County | 45,143 | $57,610 |
| 68 | Hickman County | 4,470 | $63,750 |
| 69 | Henry County | 15,774 | $60,736 |
| 70 | Henderson County | 44,493 | $58,239 |
| 71 | Hart County | 19,470 | $49,653 |
| 72 | Harrison County | 18,971 | $63,205 |
| 73 | Harlan County | 26,185 | $37,198 |
| 74 | Hardin County | 111,452 | $67,608 |
| 75 | Hancock County | 9,032 | $66,836 |
| 76 | Greenup County | 35,639 | $59,613 |
| 77 | Green County | 11,278 | $41,087 |
| 78 | Grayson County | 26,586 | $49,893 |
| 79 | Graves County | 36,612 | $50,576 |
| 80 | Grant County | 25,238 | $67,940 |
| 81 | Garrard County | 17,346 | $62,572 |
| 82 | Gallatin County | 8,749 | $62,247 |
| 83 | Fulton County | 6,440 | $36,834 |
| 84 | Franklin County | 51,563 | $66,470 |
| 85 | Floyd County | 35,342 | $41,582 |
| 86 | Fleming County | 15,221 | $49,663 |
| 87 | Fayette County | 321,122 | $67,631 |
| 88 | Estill County | 14,079 | $43,905 |
| 89 | Elliott County | 7,336 | $40,074 |
| 90 | Edmonson County | 12,243 | $54,512 |
| 91 | Daviess County | 103,195 | $65,323 |
| 92 | Cumberland County | 5,948 | $39,662 |
| 93 | Crittenden County | 8,972 | $47,003 |
| 94 | Clinton County | 9,240 | $42,168 |
| 95 | Clay County | 20,105 | $39,607 |
| 96 | Clark County | 37,004 | $67,824 |
| 97 | Christian County | 72,599 | $54,190 |
| 98 | Casey County | 15,951 | $41,689 |
| 99 | Carter County | 26,515 | $50,389 |
| 100 | Carroll County | 10,878 | $57,753 |
| 101 | Carlisle County | 4,763 | $62,019 |
| 102 | Campbell County | 93,193 | $77,271 |
| 103 | Calloway County | 37,882 | $51,854 |
| 104 | Caldwell County | 12,631 | $57,618 |
| 105 | Butler County | 12,373 | $52,003 |
| 106 | Bullitt County | 83,209 | $77,640 |
| 107 | Breckinridge County | 20,722 | $53,673 |
| 108 | Breathitt County | 13,438 | $41,101 |
| 109 | Bracken County | 8,427 | $59,521 |
| 110 | Boyle County | 30,708 | $61,635 |
| 111 | Boyd County | 48,043 | $60,659 |
| 112 | Bourbon County | 20,174 | $56,322 |
| 113 | Boone County | 137,676 | $94,752 |
| 114 | Bell County | 23,878 | $32,403 |
| 115 | Bath County | 12,812 | $54,128 |
| 116 | Barren County | 44,670 | $49,171 |
| 117 | Ballard County | 7,678 | $64,740 |
| 118 | Anderson County | 24,098 | $71,747 |
| 119 | Allen County | 21,029 | $59,029 |
| 120 | Adair County | 19,016 | $50,316 |
More Rankings for Kentucky
Frequently Asked Questions
Jefferson County is the #1 ranked county in Kentucky by population, with a value of 777,392 according to Census ACS 2023 data.
Kentucky has 120 counties tracked in Census ACS 2023 data.
All data comes from the American Community Survey (ACS) 2023 5-Year estimates by the US Census Bureau.
Data from the American Community Survey 2023 5-Year estimates. Covers all counties in Kentucky.