Kentucky Population By County in 2018
Updated on June 22, 2021.
According to the US Census Bureau population estimates, there were 4,461,153 people living in Kentucky in 2018. Jefferson County was the most populated county with 768,101 residents, followed by Fayette County with 322,426 residents, and Kenton County with 166,292 residents. Robertson County with a population of 2,130 was the least populated county in Kentucky in 2018.
Use the map below to interactively explore the population of each county in Kentucky in 2018. The data can also be explored further by sorting and filtering with the table below.
Hover/Click on the counties to see the values.
Kentucky Population By County (2018)
Table of Kentucky Population By County in 2018
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| County | Population | % of State Population |
|---|---|---|
| Adair | 19,199 | 0.43% |
| Allen | 21,122 | 0.47% |
| Anderson | 22,641 | 0.51% |
| Ballard | 7,992 | 0.18% |
| Barren | 44,115 | 0.99% |
| Bath | 12,444 | 0.28% |
| Bell | 26,487 | 0.59% |
| Boone | 131,901 | 2.96% |
| Bourbon | 20,116 | 0.45% |
| Boyd | 47,292 | 1.06% |
| Boyle | 30,082 | 0.67% |
| Bracken | 8,278 | 0.19% |
| Breathitt | 12,787 | 0.29% |
| Breckinridge | 20,309 | 0.46% |
| Bullitt | 81,009 | 1.82% |
| Butler | 12,743 | 0.29% |
| Caldwell | 12,716 | 0.28% |
| Calloway | 38,964 | 0.87% |
| Campbell | 93,464 | 2.10% |
| Carlisle | 4,739 | 0.11% |
| Carroll | 10,712 | 0.24% |
| Carter | 27,040 | 0.61% |
| Casey | 15,926 | 0.36% |
| Christian | 70,712 | 1.59% |
| Clark | 36,180 | 0.81% |
| Clay | 20,088 | 0.45% |
| Clinton | 10,152 | 0.23% |
| Crittenden | 8,896 | 0.20% |
| Cumberland | 6,693 | 0.15% |
| Daviess | 100,883 | 2.26% |
| Edmonson | 12,249 | 0.28% |
| Elliott | 7,499 | 0.17% |
| Estill | 14,150 | 0.32% |
| Fayette | 322,426 | 7.23% |
| Fleming | 14,485 | 0.33% |
| Floyd | 35,896 | 0.81% |
| Franklin | 50,801 | 1.14% |
| Fulton | 6,066 | 0.14% |
| Gallatin | 8,766 | 0.20% |
| Garrard | 17,519 | 0.39% |
| Grant | 25,065 | 0.56% |
| Graves | 37,319 | 0.84% |
| Grayson | 26,293 | 0.59% |
| Green | 10,998 | 0.25% |
| Greenup | 35,332 | 0.79% |
| Hancock | 8,738 | 0.20% |
| Hardin | 110,279 | 2.47% |
| Harlan | 26,309 | 0.59% |
| Harrison | 18,780 | 0.42% |
| Hart | 18,902 | 0.42% |
| Henderson | 45,512 | 1.02% |
| Henry | 16,061 | 0.36% |
| Hickman | 4,431 | 0.10% |
| Hopkins | 45,024 | 1.01% |
| Jackson | 13,403 | 0.30% |
| Jefferson | 768,101 | 17.22% |
| Jessamine | 53,757 | 1.21% |
| Johnson | 22,391 | 0.50% |
| Kenton | 166,292 | 3.73% |
| Knott | 15,076 | 0.34% |
| Knox | 31,300 | 0.70% |
| Larue | 14,299 | 0.32% |
| Laurel | 60,660 | 1.36% |
| Lawrence | 15,583 | 0.35% |
| Lee | 7,052 | 0.16% |
| Leslie | 10,151 | 0.23% |
| Letcher | 21,813 | 0.49% |
| Lewis | 13,268 | 0.30% |
| Lincoln | 24,612 | 0.55% |
| Livingston | 9,244 | 0.21% |
| Logan | 26,983 | 0.61% |
| Lyon | 8,171 | 0.18% |
| McCracken | 65,307 | 1.46% |
| McCreary | 17,290 | 0.39% |
| McLean | 9,258 | 0.21% |
| Madison | 92,107 | 2.07% |
| Magoffin | 12,323 | 0.28% |
| Marion | 19,326 | 0.43% |
| Marshall | 31,202 | 0.70% |
| Martin | 11,325 | 0.25% |
| Mason | 17,080 | 0.38% |
| Meade | 28,623 | 0.64% |
| Menifee | 6,437 | 0.14% |
| Mercer | 21,702 | 0.49% |
| Metcalfe | 10,070 | 0.23% |
| Monroe | 10,732 | 0.24% |
| Montgomery | 28,109 | 0.63% |
| Morgan | 13,372 | 0.30% |
| Muhlenberg | 30,811 | 0.69% |
| Nelson | 45,813 | 1.03% |
| Nicholas | 7,195 | 0.16% |
| Ohio | 24,064 | 0.54% |
| Oldham | 66,512 | 1.49% |
| Owen | 10,881 | 0.24% |
| Owsley | 4,474 | 0.10% |
| Pendleton | 14,588 | 0.33% |
| Perry | 26,208 | 0.59% |
| Pike | 58,492 | 1.31% |
| Powell | 12,371 | 0.28% |
| Pulaski | 64,584 | 1.45% |
| Robertson | 2,130 | 0.05% |
| Rockcastle | 16,823 | 0.38% |
| Rowan | 24,503 | 0.55% |
| Russell | 17,790 | 0.40% |
| Scott | 55,968 | 1.25% |
| Shelby | 48,059 | 1.08% |
| Simpson | 18,403 | 0.41% |
| Spencer | 19,021 | 0.43% |
| Taylor | 25,514 | 0.57% |
| Todd | 12,306 | 0.28% |
| Trigg | 14,658 | 0.33% |
| Trimble | 8,468 | 0.19% |
| Union | 14,471 | 0.32% |
| Warren | 130,750 | 2.93% |
| Washington | 12,023 | 0.27% |
| Wayne | 20,430 | 0.46% |
| Webster | 13,051 | 0.29% |
| Whitley | 36,101 | 0.81% |
| Wolfe | 7,199 | 0.16% |
| Woodford | 26,491 | 0.59% |
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