# List of primary state highways in Kentucky

State highways in Kentucky are maintained by the Kentucky Transportation Cabinet, which classifies routes as either primary or secondary. Some routes, such as Kentucky Route 80, are both primary and secondary, with only a segment of the route listed as part of the primary system. Despite the name, there is no difference in signage between primary and secondary routes.
All of the Interstates and parkways are also primary, but only parts of the U.S. Highways in Kentucky are (though every mainline U.S. Highway is at least partially primary).
Due to the large size of the state highway system, only segments of routes that are part of the primary system are listed below.

## Primary state highways
### 1-999

| Number | Length (mi) | Length (km) | Southern or western terminus | Northern or eastern terminus | Formed | Removed | Notes |
| KY 3 | 79.158 | 127.392 | US 23 / US 460 near Auxier | KY 645 near Inez | 01929-01-01c. 1929 | current | |
| KY 4 | 19.283 | 31.033 | Beltway around Lexington | Beltway around Lexington | 01966-01-011966 | current | |
| KY 7 | 203.073 | 326.814 | US 460 in West Liberty | KY 9 near Grayson | 01929-01-01c. 1929 | current | |
| KY 8 | 114.202 | 183.790 | KY 1072 in Ludlow | Dodd Drive in Dayton | — | — | |
| KY 9 | 116.285 | 187.143 | KY 1 near Grayson | KY 8 in Newport | 01929-01-01c. 1929 | current | |
| KY 10 | 117.760 | 189.516 | KY 9 near Vanceburg | SR 253 near Greenup | 01929-01-01c. 1929 | current | |
| KY 11 | 182.546 | 293.779 | KY 30 near Levi | Mountain Parkway at Slade | 01929-01-01c. 1929 | current | |
| KY 11 | 182.546 | 293.779 | US 460 near Mount Sterling | US 62 / US 68 Bus. in Maysville | 01929-01-01c. 1929 | current | |
| KY 15 | 131.418 | 211.497 | US 119 in Whitesburg | U.S. Route 60 in Winchester | — | — | |
| KY 16 | 36.752 | 59.147 | I-275 in Taylor Mill | KY 17 in Covington | — | — | |
| KY 17 | 34.660 | 55.780 | KY 16 at Nicholson | Cincinnati, OH | — | — | |
| KY 18 | 16.632 | 26.767 | KY 338 at Burlington | KY 1017 in Florence | — | — | |
| KY 21 | 17.284 | 27.816 | KY 954 near Berea | US 421 at Bighill | — | — | |
| KY 22 | 4.827 | 7.768 | US 42 in Louisville | KY 1694 in Louisville | — | — | |
| KY 22 | 28.315 | 45.569 | US 127 in Owenton | I-75 in Dry Ridge | — | — | |
| KY 30 | 39.303 | 63.252 | Hal Rogers Parkway in London | KY 11 near Levi | — | — | |
| KY 32 | 26.117 | 42.031 | KY 11 in Flemingsburg | US 60 in Morehead | — | — | |
| KY 34 | 6.904 | 11.111 | US 150 in Danville | US 27 near Bryantsville | — | — | |
| KY 35 | 6.217 | 10.005 | US 127 at Bromley | I-71 near Sparta | — | — | |
| KY 40 | 11.095 | 17.856 | KY 645 near Inez | Kermit, WV | — | — | |
| KY 52 | 167.399 | 269.403 | US 62 in Boston | KY 30 in Jackson | — | — | |
| KY 53 | 66.314 | 106.722 | KY 555 near Willisburg | US 42 / US 42 near La Grange | — | — | |
| KY 54 | 54.328 | 87.432 | KY 81 / KY 2831 in Owensboro | KY 1456 at Dermont | — | — | |
| KY 55 | 41.522 | 66.823 | KY 55 Bus. south of Columbia | KY 555 in Springfield | — | — | Primary route follows KY 2154 around Lebanon rather than KY 55 |
| KY 55 | 18.626 | 29.976 | I-64 near Shelbyville | US 421 near New Castle | — | — | |
| KY 61 | 151.235 | 243.389 | SR 53 near Peytonsburg | US 31E / US 60 in Downtown Louisville | — | — | |
| KY 65 | — | — | — | — | 01929-01-011929 | 01960-01-011960 | Renumbered to KY 259 to avoid duplication with I-65 |
| KY 67 | 14.219 | 22.883 | I-64 near Grayson | KY 3105 in Wurtland | — | — | |
| KY 67 | 14.219 | 22.883 | I-64 near Grayson | KY 3105 in Wurtland | — | — | |
| KY 69 | 2.597 | 4.179 | US 60 in Hawesville | SR 237 in Cannelton, IN | — | — | |
| KY 70 | 294.692 | 474.261 | I-65 near Cave City | KY 90 near Cave City | — | — | |
| KY 80 | 147.447 | 237.293 | KY 303 in Mayfield | US 31W in Bowling Green | — | — | |
| KY 80 | 29.196 | 46.986 | KY 914 near Somerset | Hal Rogers Parkway in London | — | — | |
| KY 80 | 0.1 | 0.16 | Hal Rogers Parkway in Manchester | US 421 in Manchester | — | — | |
| KY 80 | 42.477 | 68.360 | Hal Rogers Parkway / KY 15 in Hazard | US 23 at Watergap | — | — | |
| KY 81 | 2.602 | 4.188 | US 60 in Owensboro | KY 54 / KY 2831 in Owensboro | — | — | |
| KY 90 | 134.734 | 216.833 | KY 70 near Cave City | US 25W near Goldbug | — | — | |
| KY 101 | 5.97 | 9.61 | US 31W near Smiths Grove | KY 259 at Rhoda | — | — | |
| KY 114 | 17.543 | 28.233 | US 460 near Salyersville | KY 1428 in Prestonsburg | — | — | |
| KY 118 | 3.524 | 5.671 | US 421 in Hyden | Hal Rogers Parkway near Hyden | — | — | |
| KY 121 | 3.439 | 5.535 | KY 80 near Mayfield | US 45 in Mayfield | — | — | |
| KY 144 | 7.043 | 11.335 | KY 448 near Garrett | KY 1600 at Flaherty | — | — | |
| KY 151 | 6.686 | 10.760 | US 127 near Lawrenceburg | I-64 near Graefenburg | — | — | |
| KY 155 | 12.284 | 19.769 | KY 148 near Fisherville | US 31E / US 150 in Louisville | — | — | |
| KY 160 | — | — | SR 160 near Appalachia, VA | US 119 in Cumberland | — | — | |
| KY 160 | — | — | KY 15 near Carr Creek | KY 80 near Hindman | — | — | |
| KY 180 | 1.777 | 2.860 | I-64 near Cannonsburg | US 60 near Cannonsburg | — | — | |
| KY 191 | 15.9 | 25.6 | KY 15 in Campton | KY 205 near Helechawa | — | — | |
| KY 192 | 3.9 | 6.3 | I-75 in London | Hal Rogers Parkway in London | — | — | |
| KY 205 | 21.7 | 34.9 | KY 15 at Vancleve | US 460 near Grassy Creek | — | — | |
| KY 210 | — | — | KY 1618 near Hodgenville | US 68 / KY 55 in Campbellsville | — | — | |
| KY 234 | 0.374 | 0.602 | I-65 near Bowling Green | KY 880 near Bowling Green | — | — | |
| KY 237 | 9.629 | 15.496 | US 42 at Sugartit | KY 2846 near Hebron | — | — | |
| KY 245 | 19.439 | 31.284 | US 150 near Bardstown | KY 61 near Bardstown Junction | — | — | |
| KY 259 | 55.397 | 89.153 | KY 101 at Rhoda | US 60 at Harned | — | — | |
| KY 312 | 1.685 | 2.712 | US 25W in Corbin | US 25E in Corbin | — | — | |
| KY 313 | 22.596 | 36.365 | I-65 near Lebanon Junction | US 60 / KY 144 near Garrett | — | — | |
| KY 338 | 0.360 | 0.579 | US 25 at Richwood | I-75 at Richwood | — | — | |
| KY 348 | 0.832 | 1.339 | I-69 in Benton | US 641 in Benton | — | — | |
| KY 418 | 2.489 | 4.006 | US 25 in Lexington | I-75 in Lexington | — | — | |
| KY 425 | 4.747 | 7.640 | US 60 near Henderson | Pennyrile Parkway near Henderson | — | — | |
| KY 446 | 0.970 | 1.561 | US 31W in Bowling Green | I-65 in Bowling Green | — | — | |
| KY 448 | 3.056 | 4.918 | KY 313 in Brandenburg | KY 79 / KY 313 in Brandenburg | — | — | |
| KY 461 | 18.015 | 28.992 | KY 80 near Shopville | US 25 in Mount Vernon | — | — | |
| KY 471 | 0.698 | 1.123 | US 27 in Highland Heights | I-275 / I-471 in Highland Heights | — | — | |
| KY 519 | 20.544 | 33.062 | KY 7 near West Liberty | US 60 in Morehead | — | — | |
| KY 536 | 3.278 | 5.275 | US 42 in Union | US 25 at Devon | — | — | |
| KY 555 | 14.639 | 23.559 | KY 55 in Springfield | Bluegrass Parkway near Willisburg | — | — | |
| KY 620 | 2.837 | 4.566 | US 62 near Georgetown | I-75 near Georgetown | — | — | |
| KY 627 | 12.457 | 20.048 | US 25 near Richmond | I-64 in Winchester | — | — | |
| KY 645 | 9.887 | 15.912 | US 23 near Ulysses | KY 40 in Inez | 01984-01-011984 | current | |
| KY 676 | 5.287 | 8.509 | US 127 in Frankfort | US 60 / US 421 in Frankfort | — | — | |
| KY 686 | 3.506 | 5.642 | US 460 / KY 11 in Mount Sterling | US 460 near Mount Sterling | — | — | |
| KY 788 | 1.111 | 1.788 | Fort Campbell | US 41 Alt. in Oak Grove | 02012-01-012012 | current | |
| KY 823 | 4.6 | 7.4 | KY-477 in Raymond | KY-261/KY-703 west of Fackler Road | — | — |
| KY 841 | 38.9 | 62.6 | US 31W / US 60 / KY 1934 near Valley Station | Indiana State Road 265 (Future I-265) on the Lewis and Clark Bridge (Ohio River) | — | — | |
| KY 864 | 10.774 | 17.339 | I-265 in Louisville | US 60 Alt. in Louisville | — | — | |
| KY 876 | 2.81 | 4.52 | I-75 in Richmond | US 25 / US 421 in Richmond | — | — | |
| KY 880 | 2.834 | 4.561 | US 231 in Bowling Green | KY 234 near Bowling Green | 01983-01-011983 | current | |
| KY 913 | 4.337 | 6.980 | KY 155 near Jeffersontown | US 60 near Middletown | — | — | |
| KY 914 | 13.301 | 21.406 | Cumberland Parkway west of Somerset | KY 80 east of Somerset | — | — | |
| KY 922 | 4.308 | 6.933 | US 60 in Lexington | I-64 / I-75 in Lexington | — | — | |

### 1000-1999

| Number | Length (mi) | Length (km) | Southern or western terminus | Northern or eastern terminus | Formed | Removed |
| KY 1020 | 9.713 | 15.632 | KY 841 near Fairdale | US 31E / US 31W / US 60 in Louisville | — | — |
| KY 1051 | 2.085 | 3.355 | KY 79 in Brandenburg | KY 448 in Brandenburg | — | — |
| KY 1065 | 5.141 | 8.274 | KY 1020 near Fairdale | KY 2052 near Okolona | — | — |
| KY 1120 | — | — | I-75 in Covington | I-471 in Newport | — | — |
| KY 1247 | 3.950 | 6.357 | US 27 in Burnside | KY 914 near Somerset | — | — |
| KY 1447 | 9.242 | 14.874 | KY 1932 near Louisville | KY 146 near Pewee Valley | — | — |
| KY 1526 | 2.09 | 3.36 | KY 1020 at Brooks | KY 61 in Pioneer Village | — | — |
| KY 1600 | — | — | KY 3005 near Elizabethtown | KY 144 at Flaherty | — | — |
| KY 1618 | 1.063 | 1.711 | US 31E near Hodgenville | KY 210 near Hodgenville | — | — |
| KY 1638 | 9.097 | 14.640 | KY 448 near Brandenburg | US 31W / US 60 at Muldraugh | — | — |
| KY 1703 | 4.765 | 7.669 | KY 2052 near Fern Creek | US 60 Alt. in Louisville | — | — |
| KY 1747 | 18.242 | 29.358 | I-65 near Okolona | KY 22 near Anchorage | — | — |
| KY 1865 | 6.193 | 9.967 | KY 841 near Fairdale | US 60 Alt. in Louisville | — | — |
| KY 1932 | 6.590 | 10.606 | US 31E near Fern Creek | US 42 near Louisville | — | — |
| KY 1934 | 11.502 | 18.511 | US 31W / KY 841 near Valley Station | I-264 near Shively | — | — |
| KY 1958 | 5.325 | 8.570 | partial loop around Winchester | partial loop around Winchester | — | — |
| KY 1973 | 33.886 | 54.534 | I-75 in Lexington | US 25 in Lexington | — | — |
| KY 1974 | 9.455 | 15.216 | KY 1980 in Lexington | KY 4 in Lexington | — | — |
| Former ||||||||

### 2000-2999

| Number | Length (mi) | Length (km) | Southern or western terminus | Northern or eastern terminus | Formed | Removed |
| KY 2054 | 3.299 | 5.309 | US 31W in Louisville | US 60 Alt. in Louisville | — | — |
| KY 2154 | 6.821 | 10.977 | US 68 east of Lebanon | US 68 / KY 55 west of Lebanon | — | — |
| KY 2155 | 3.447 | 5.547 | US 60 / US 231 near Owensboro | KY 54 in Owensboro | — | — |
| KY 2262 | 1.494 | 2.404 | KY 54 in Owensboro | SR 161 near Rockport, IN | — | — |
| KY 2831 | 3.056 | 4.918 | US 60 / US 431 near Owensboro | KY 54 / KY 81 in Owensboro | — | — |

### 3000-5999

| Number | Length (mi) | Length (km) | Southern or western terminus | Northern or eastern terminus | Formed | Removed |
| KY 3005 | 10.582 | 17.030 | Western Kentucky Parkway near Elizabethtown | US 62 in Elizabethtown | — | — |
| KY 3041 | 5.700 | 9.173 | US 25W near Corbin | US 25E near Corbin | — | — |
| KY 3155 | 4.697 | 7.559 | KY 259 south of Leitchfield | KY 259 north of Leitchfield | — | — |
| KY 3487 | 1.277 | 2.055 | US 62 near Georgetown | KY 620 near Georgetown | — | 02021-01-012021 |
| Former ||||||||