| County Population Centroids for Kentucky |
| ST | COU | COUNTY NAME | POPULATION | LATITUDE | LONGITUDE |
| 21 | 001 | Adair | 17,244 | 37.107330 | -85.280127 |
| 21 | 003 | Allen | 17,800 | 36.748567 | -86.204396 |
| 21 | 005 | Anderson | 19,111 | 38.025769 | -84.928217 |
| 21 | 007 | Ballard | 8,286 | 37.043572 | -88.980917 |
| 21 | 009 | Barren | 38,033 | 36.994370 | -85.929185 |
| 21 | 011 | Bath | 11,085 | 38.140132 | -83.740972 |
| 21 | 013 | Bell | 30,060 | 36.690716 | -83.699162 |
| 21 | 015 | Boone | 85,991 | 38.986056 | -84.675963 |
| 21 | 017 | Bourbon | 19,360 | 38.205710 | -84.244802 |
| 21 | 019 | Boyd | 49,752 | 38.432249 | -82.665629 |
| 21 | 021 | Boyle | 27,697 | 37.636987 | -84.798604 |
| 21 | 023 | Bracken | 8,279 | 38.704332 | -84.072721 |
| 21 | 025 | Breathitt | 16,100 | 37.517696 | -83.378183 |
| 21 | 027 | Breckinridge | 18,648 | 37.771671 | -86.417070 |
| 21 | 029 | Bullitt | 61,236 | 38.022965 | -85.662285 |
| 21 | 031 | Butler | 13,010 | 37.220320 | -86.678183 |
| 21 | 033 | Caldwell | 13,060 | 37.128590 | -87.880183 |
| 21 | 035 | Calloway | 34,177 | 36.619117 | -88.304531 |
| 21 | 037 | Campbell | 88,616 | 39.039309 | -84.442779 |
| 21 | 039 | Carlisle | 5,351 | 36.853976 | -88.950406 |
| 21 | 041 | Carroll | 10,155 | 38.669241 | -85.139461 |
| 21 | 043 | Carter | 26,889 | 38.311983 | -83.039936 |
| 21 | 045 | Casey | 15,447 | 37.303568 | -84.925451 |
| 21 | 047 | Christian | 72,265 | 36.805727 | -87.477256 |
| 21 | 049 | Clark | 33,144 | 37.985721 | -84.182008 |
| 21 | 051 | Clay | 24,556 | 37.168439 | -83.739977 |
| 21 | 053 | Clinton | 9,634 | 36.715435 | -85.133719 |
| 21 | 055 | Crittenden | 9,384 | 37.332755 | -88.095779 |
| 21 | 057 | Cumberland | 7,147 | 36.776867 | -85.391774 |
| 21 | 059 | Daviess | 91,545 | 37.748063 | -87.095126 |
| 21 | 061 | Edmonson | 11,644 | 37.202265 | -86.259047 |
| 21 | 063 | Elliott | 6,748 | 38.118579 | -83.106448 |
| 21 | 065 | Estill | 15,307 | 37.705478 | -83.989000 |
| 21 | 067 | Fayette | 260,512 | 38.018572 | -84.496455 |
| 21 | 069 | Fleming | 13,792 | 38.390280 | -83.712837 |
| 21 | 071 | Floyd | 42,441 | 37.546882 | -82.738900 |
| 21 | 073 | Franklin | 47,687 | 38.196315 | -84.867890 |
| 21 | 075 | Fulton | 7,752 | 36.538467 | -89.033693 |
| 21 | 077 | Gallatin | 7,870 | 38.763822 | -84.845111 |
| 21 | 079 | Garrard | 14,792 | 37.641037 | -84.568250 |
| 21 | 081 | Grant | 22,384 | 38.684329 | -84.601630 |
| 21 | 083 | Graves | 37,028 | 36.739974 | -88.649347 |
| 21 | 085 | Grayson | 24,053 | 37.469207 | -86.306625 |
| 21 | 087 | Green | 11,518 | 37.263449 | -85.536251 |
| 21 | 089 | Greenup | 36,891 | 38.557469 | -82.813112 |
| 21 | 091 | Hancock | 8,392 | 37.867202 | -86.804408 |
| 21 | 093 | Hardin | 94,174 | 37.754678 | -85.919908 |
| 21 | 095 | Harlan | 33,202 | 36.865328 | -83.231975 |
| 21 | 097 | Harrison | 17,983 | 38.415305 | -84.315551 |
| 21 | 099 | Hart | 17,445 | 37.276514 | -85.881541 |
| 21 | 101 | Henderson | 44,829 | 37.818242 | -87.564253 |
| 21 | 103 | Henry | 15,060 | 38.432686 | -85.172964 |
| 21 | 105 | Hickman | 5,262 | 36.667830 | -88.963941 |
| 21 | 107 | Hopkins | 46,519 | 37.302813 | -87.523973 |
| 21 | 109 | Jackson | 13,495 | 37.405858 | -83.994145 |
| 21 | 111 | Jefferson | 693,604 | 38.202688 | -85.701339 |
| 21 | 113 | Jessamine | 39,041 | 37.883071 | -84.586336 |
| 21 | 115 | Johnson | 23,445 | 37.829814 | -82.814264 |
| 21 | 117 | Kenton | 151,464 | 39.019836 | -84.547446 |
| 21 | 119 | Knott | 17,649 | 37.329673 | -82.936359 |
| 21 | 121 | Knox | 31,795 | 36.901368 | -83.907168 |
| 21 | 123 | Larue | 13,373 | 37.544621 | -85.722089 |
| 21 | 125 | Laurel | 52,715 | 37.091772 | -84.089646 |
| 21 | 127 | Lawrence | 15,569 | 38.075969 | -82.683785 |
| 21 | 129 | Lee | 7,916 | 37.590107 | -83.702476 |
| 21 | 131 | Leslie | 12,401 | 37.110166 | -83.376445 |
| 21 | 133 | Letcher | 25,277 | 37.146473 | -82.805966 |
| 21 | 135 | Lewis | 14,092 | 38.564766 | -83.339978 |
| 21 | 137 | Lincoln | 23,361 | 37.468248 | -84.666720 |
| 21 | 139 | Livingston | 9,804 | 37.137995 | -88.351666 |
| 21 | 141 | Logan | 26,573 | 36.857700 | -86.870538 |
| 21 | 143 | Lyon | 8,080 | 37.065465 | -88.080380 |
| 21 | 145 | McCracken | 65,514 | 37.048770 | -88.645926 |
| 21 | 147 | McCreary | 17,080 | 36.714094 | -84.453465 |
| 21 | 149 | McLean | 9,938 | 37.513751 | -87.221493 |
| 21 | 151 | Madison | 70,872 | 37.705385 | -84.286148 |
| 21 | 153 | Magoffin | 13,332 | 37.729829 | -83.054406 |
| 21 | 155 | Marion | 18,212 | 37.569220 | -85.284616 |
| 21 | 157 | Marshall | 30,125 | 36.899186 | -88.339505 |
| 21 | 159 | Martin | 12,578 | 37.843745 | -82.501000 |
| 21 | 161 | Mason | 16,800 | 38.618497 | -83.788680 |
| 21 | 163 | Meade | 26,349 | 37.934273 | -86.133661 |
| 21 | 165 | Menifee | 6,556 | 37.941645 | -83.597589 |
| 21 | 167 | Mercer | 20,817 | 37.784858 | -84.849794 |
| 21 | 169 | Metcalfe | 10,037 | 36.993490 | -85.642922 |
| 21 | 171 | Monroe | 11,756 | 36.708208 | -85.727499 |
| 21 | 173 | Montgomery | 22,554 | 38.034826 | -83.919093 |
| 21 | 175 | Morgan | 13,948 | 37.914354 | -83.262404 |
| 21 | 177 | Muhlenberg | 31,839 | 37.237911 | -87.146033 |
| 21 | 179 | Nelson | 37,477 | 37.814643 | -85.465112 |
| 21 | 181 | Nicholas | 6,813 | 38.325019 | -84.018786 |
| 21 | 183 | Ohio | 22,916 | 37.463568 | -86.862955 |
| 21 | 185 | Oldham | 46,178 | 38.374300 | -85.454655 |
| 21 | 187 | Owen | 10,547 | 38.528946 | -84.832331 |
| 21 | 189 | Owsley | 4,858 | 37.452241 | -83.677235 |
| 21 | 191 | Pendleton | 14,390 | 38.716518 | -84.360471 |
| 21 | 193 | Perry | 29,390 | 37.254307 | -83.198068 |
| 21 | 195 | Pike | 68,736 | 37.461635 | -82.415490 |
| 21 | 197 | Powell | 13,237 | 37.849136 | -83.877865 |
| 21 | 199 | Pulaski | 56,217 | 37.091683 | -84.613087 |
| 21 | 201 | Robertson | 2,266 | 38.522862 | -84.048902 |
| 21 | 203 | Rockcastle | 16,582 | 37.379504 | -84.345960 |
| 21 | 205 | Rowan | 22,094 | 38.197925 | -83.437124 |
| 21 | 207 | Russell | 16,315 | 37.028361 | -85.059531 |
| 21 | 209 | Scott | 33,061 | 38.234670 | -84.572834 |
| 21 | 211 | Shelby | 33,337 | 38.213248 | -85.223548 |
| 21 | 213 | Simpson | 16,405 | 36.732636 | -86.573324 |
| 21 | 215 | Spencer | 11,766 | 38.051859 | -85.352382 |
| 21 | 217 | Taylor | 22,927 | 37.351084 | -85.341688 |
| 21 | 219 | Todd | 11,971 | 36.810542 | -87.170608 |
| 21 | 221 | Trigg | 12,597 | 36.848991 | -87.837578 |
| 21 | 223 | Trimble | 8,125 | 38.620619 | -85.332925 |
| 21 | 225 | Union | 15,637 | 37.653493 | -87.930708 |
| 21 | 227 | Warren | 92,522 | 36.974506 | -86.433444 |
| 21 | 229 | Washington | 10,916 | 37.738713 | -85.189036 |
| 21 | 231 | Wayne | 19,923 | 36.833036 | -84.843737 |
| 21 | 233 | Webster | 14,120 | 37.496824 | -87.690523 |
| 21 | 235 | Whitley | 35,865 | 36.807961 | -84.137167 |
| 21 | 237 | Wolfe | 7,065 | 37.743571 | -83.508401 |
| 21 | 239 | Woodford | 23,208 | 38.052481 | -84.726845 |