Kentucky Population By County in 2018
Updated on January 29, 2024.
According to the US Census Bureau population estimates, there were 4,464,273 people living in Kentucky in 2018. Jefferson County was the most populated county with 768,706 residents, followed by Fayette County with 322,597 residents, and Kenton County with 166,501 residents. Robertson County with a population of 2,147 was the least populated county in Kentucky in 2018.
Use the map below to interactively explore the population for each county in Kentucky in 2018. The data can also be explored further by sorting and filtering with the table below.
You can see similar information for other states and by state for the United States.
Related Topics: Kentucky Census Vintage Data Topic List.
Data Source: US Census Bureau (Vintage).
See this for other years:
Kentucky Population By County (2018)
Table of Kentucky Population By County in 2018
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| County | Population | % of State Population |
|---|---|---|
| Adair | 19,201 | 0.43% |
| Allen | 21,104 | 0.47% |
| Anderson | 22,615 | 0.51% |
| Ballard | 7,940 | 0.18% |
| Barren | 44,071 | 0.99% |
| Bath | 12,444 | 0.28% |
| Bell | 26,534 | 0.59% |
| Boone | 131,971 | 2.96% |
| Bourbon | 20,102 | 0.45% |
| Boyd | 47,406 | 1.06% |
| Boyle | 30,109 | 0.67% |
| Bracken | 8,273 | 0.19% |
| Breathitt | 12,762 | 0.29% |
| Breckinridge | 20,286 | 0.45% |
| Bullitt | 81,040 | 1.82% |
| Butler | 12,731 | 0.28% |
| Caldwell | 12,684 | 0.28% |
| Calloway | 38,982 | 0.87% |
| Campbell | 93,990 | 2.11% |
| Carlisle | 4,711 | 0.11% |
| Carroll | 10,711 | 0.24% |
| Carter | 27,042 | 0.61% |
| Casey | 15,950 | 0.36% |
| Christian | 71,036 | 1.59% |
| Clark | 36,209 | 0.81% |
| Clay | 20,116 | 0.45% |
| Clinton | 10,142 | 0.23% |
| Crittenden | 8,900 | 0.20% |
| Cumberland | 6,704 | 0.15% |
| Daviess | 100,885 | 2.26% |
| Edmonson | 12,247 | 0.27% |
| Elliott | 7,469 | 0.17% |
| Estill | 14,164 | 0.32% |
| Fayette | 322,597 | 7.23% |
| Fleming | 14,490 | 0.33% |
| Floyd | 35,861 | 0.80% |
| Franklin | 50,807 | 1.14% |
| Fulton | 6,049 | 0.14% |
| Gallatin | 8,739 | 0.20% |
| Garrard | 17,528 | 0.39% |
| Grant | 25,114 | 0.56% |
| Graves | 37,260 | 0.84% |
| Grayson | 26,265 | 0.59% |
| Green | 11,007 | 0.25% |
| Greenup | 35,371 | 0.79% |
| Hancock | 8,751 | 0.20% |
| Hardin | 110,435 | 2.47% |
| Harlan | 26,338 | 0.59% |
| Harrison | 18,730 | 0.42% |
| Hart | 18,868 | 0.42% |
| Henderson | 45,566 | 1.02% |
| Henry | 16,049 | 0.36% |
| Hickman | 4,424 | 0.10% |
| Hopkins | 44,978 | 1.01% |
| Jackson | 13,415 | 0.30% |
| Jefferson | 768,706 | 17.22% |
| Jessamine | 53,777 | 1.21% |
| Johnson | 22,432 | 0.50% |
| Kenton | 166,501 | 3.73% |
| Knott | 15,090 | 0.34% |
| Knox | 31,326 | 0.70% |
| Larue | 14,300 | 0.32% |
| Laurel | 60,652 | 1.36% |
| Lawrence | 15,589 | 0.35% |
| Lee | 7,038 | 0.16% |
| Leslie | 10,135 | 0.23% |
| Letcher | 21,847 | 0.49% |
| Lewis | 13,269 | 0.30% |
| Lincoln | 24,614 | 0.55% |
| Livingston | 9,222 | 0.21% |
| Logan | 27,003 | 0.61% |
| Lyon | 8,198 | 0.18% |
| McCracken | 65,391 | 1.47% |
| McCreary | 17,327 | 0.39% |
| McLean | 9,237 | 0.21% |
| Madison | 92,172 | 2.07% |
| Magoffin | 12,331 | 0.28% |
| Marion | 19,314 | 0.43% |
| Marshall | 31,247 | 0.70% |
| Martin | 11,349 | 0.25% |
| Mason | 17,105 | 0.38% |
| Meade | 28,648 | 0.64% |
| Menifee | 6,415 | 0.14% |
| Mercer | 21,674 | 0.49% |
| Metcalfe | 10,074 | 0.23% |
| Monroe | 10,746 | 0.24% |
| Montgomery | 28,179 | 0.63% |
| Morgan | 13,363 | 0.30% |
| Muhlenberg | 30,841 | 0.69% |
| Nelson | 45,781 | 1.02% |
| Nicholas | 7,198 | 0.16% |
| Ohio | 24,125 | 0.54% |
| Oldham | 66,632 | 1.49% |
| Owen | 10,867 | 0.24% |
| Owsley | 4,454 | 0.10% |
| Pendleton | 14,572 | 0.33% |
| Perry | 26,246 | 0.59% |
| Pike | 58,567 | 1.31% |
| Powell | 12,356 | 0.28% |
| Pulaski | 64,735 | 1.45% |
| Robertson | 2,147 | 0.05% |
| Rockcastle | 16,830 | 0.38% |
| Rowan | 24,488 | 0.55% |
| Russell | 17,799 | 0.40% |
| Scott | 55,983 | 1.25% |
| Shelby | 48,073 | 1.08% |
| Simpson | 18,386 | 0.41% |
| Spencer | 18,959 | 0.43% |
| Taylor | 25,483 | 0.57% |
| Todd | 12,339 | 0.28% |
| Trigg | 14,666 | 0.33% |
| Trimble | 8,500 | 0.19% |
| Union | 14,519 | 0.33% |
| Warren | 130,926 | 2.93% |
| Washington | 12,011 | 0.27% |
| Wayne | 20,401 | 0.46% |
| Webster | 13,047 | 0.29% |
| Whitley | 36,196 | 0.81% |
| Wolfe | 7,215 | 0.16% |
| Woodford | 26,487 | 0.59% |