| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Louisville | 1 | 644,291 | 631,872 | 0.36% | 2,451 | 263 | Township |
| Jeffersontown | 2 | 29,216 | 29,225 | 0.08% | 2,687 | 11 | City |
| St. Matthews | 3 | 17,931 | 17,557 | 0.35% | 4,068 | 4 | City |
| Shively | 4 | 15,947 | 15,638 | 0.33% | 3,488 | 5 | City |
| Lyndon | 5 | 11,351 | 11,059 | 0.44% | 3,152 | 4 | City |
| Middletown | 6 | 9,991 | 9,715 | 0.47% | 1,945 | 5 | City |
| Douglass Hills | 7 | 5,599 | 5,458 | 0.43% | 4,222 | 1 | City |
| Hurstbourne | 8 | 4,808 | 4,687 | 0.44% | 2,671 | 2 | City |
| Prospect | 9 | 4,728 | 4,594 | 0.49% | 1,234 | 4 | City |
| Indian Hills | 10 | 2,950 | 2,886 | 0.37% | 1,488 | 2 | City |
| Graymoor-Devondale | 11 | 2,822 | 2,847 | -0.35% | 3,829 | 1 | City |
| Anchorage | 12 | 2,556 | 2,500 | 0.35% | 864 | 3 | City |
| Windy Hills | 13 | 2,486 | 2,429 | 0.4% | 2,702 | 1 | City |
| Hurstbourne Acres | 14 | 2,012 | 1,958 | 0.45% | 5,815 | 0 | City |
| Orchard Grass Hills | 15 | 1,642 | 1,538 | 1.17% | 4,232 | 0 | City |
| Worthington Hills | 16 | 1,601 | 1,556 | 0.5% | 6,254 | 0 | City |
| St. Regis Park | 17 | 1,466 | 1,434 | 0.34% | 4,165 | 0 | City |
| Audubon Park | 18 | 1,461 | 1,436 | 0.27% | 4,509 | 0 | City |
| West Buechel | 19 | 1,407 | 1,374 | 0.36% | 2,202 | 1 | City |
| Coldstream | 20 | 1,331 | 1,294 | 0.45% | 6,050 | 0 | City |
| Beechwood Village | 21 | 1,301 | 1,277 | 0.31% | 4,680 | 0 | City |
| Barbourmeade | 22 | 1,245 | 1,220 | 0.32% | 3,152 | 0 | City |
| Watterson Park | 23 | 1,037 | 1,003 | 0.58% | 720 | 1 | City |
| Northfield | 24 | 1,018 | 996 | 0.3% | 2,161 | 0 | City |
| Lynnview | 25 | 966 | 947 | 0.31% | 5,194 | 0 | City |
| Woodlawn Park | 26 | 963 | 944 | 0.31% | 3,979 | 0 | City |
| Rolling Hills | 27 | 949 | 930 | 0.32% | 5,021 | 0 | City |
| Bellemeade | 28 | 924 | 906 | 0.33% | 3,154 | 0 | City |
| Langdon Place | 29 | 894 | 872 | 0.34% | 5,228 | 0 | City |
| Fincastle | 30 | 851 | 831 | 0.35% | 3,995 | 0 | City |
| Plantation | 31 | 846 | 828 | 0.36% | 4,188 | 0 | City |
| Hollow Creek | 32 | 815 | 800 | 0.25% | 3,528 | 0 | City |
| Blue Ridge Manor | 33 | 799 | 779 | 0.38% | 4,296 | 0 | City |
| Woodland Hills | 34 | 745 | 731 | 0.27% | 3,531 | 0 | City |
| Meadow Vale | 35 | 737 | 724 | 0.27% | 3,365 | 0 | City |
| Green Spring | 36 | 735 | 718 | 0.41% | 2,753 | 0 | City |
| Rolling Fields | 37 | 733 | 721 | 0.27% | 3,159 | 0 | City |
| Strathmoor Village | 38 | 696 | 687 | 0.14% | 6,692 | 0 | City |
| Spring Valley | 39 | 690 | 675 | 0.29% | 3,485 | 0 | City |
| Seneca Gardens | 40 | 685 | 675 | 0.15% | 4,477 | 0 | City |
| Brownsboro Farm | 41 | 654 | 642 | 0.31% | 2,881 | 0 | City |
| Parkway Village | 42 | 629 | 620 | 0.16% | 7,148 | 0 | City |
| Glenview | 43 | 604 | 593 | 0.17% | 424 | 1 | City |
| Westwood | 44 | 587 | 577 | 0.17% | 4,851 | 0 | City |
| Murray Hill | 45 | 582 | 569 | 0.34% | 4,409 | 0 | City |
| Hollyvilla | 46 | 527 | 517 | 0.38% | 1,545 | 0 | City |
| Bancroft | 47 | 518 | 504 | 0.39% | 3,408 | 0 | City |
| Houston Acres | 48 | 506 | 497 | 0.2% | 3,514 | 0 | City |
| Riverwood | 49 | 499 | 487 | 0.4% | 2,399 | 0 | City |
| River Bluff | 50 | 463 | 435 | 1.09% | 1,962 | 0 | City |
| Briarwood | 51 | 454 | 447 | 0.22% | 4,779 | 0 | City |
| Norbourne Estates | 52 | 445 | 437 | 0.23% | 5,563 | 0 | City |
| Moorland | 53 | 441 | 432 | 0.23% | 4,691 | 0 | City |
| Meadowview Estates | 54 | 432 | 425 | 0.23% | 5,610 | 0 | City |
| Richlawn | 55 | 425 | 416 | 0.24% | 4,208 | 0 | City |
| Kingsley | 56 | 404 | 396 | 0.25% | 5,611 | 0 | City |
| Poplar Hills | 57 | 389 | 380 | 0.26% | 15,560 | 0 | City |
| Norwood | 58 | 387 | 378 | 0.52% | 3,280 | 0 | City |
| Old Brownsboro Place | 59 | 384 | 374 | 0.52% | 2,909 | 0 | City |
| Glenview Hills | 60 | 383 | 373 | 0.26% | 3,040 | 0 | City |
| Strathmoor Manor | 61 | 357 | 350 | 0.28% | 6,263 | 0 | City |
| Bellewood | 62 | 348 | 341 | 0.29% | 4,296 | 0 | City |
| Brownsboro Village | 63 | 314 | 306 | 0.32% | 4,187 | 0 | City |
| Creekside | 64 | 314 | 305 | 0.32% | 4,132 | 0 | City |
| Goose Creek | 65 | 306 | 299 | 0.33% | 4,935 | 0 | City |
| Druid Hills | 66 | 305 | 299 | 0.33% | 3,427 | 0 | City |
| Spring Mill | 67 | 300 | 292 | 0.33% | 5,357 | 0 | City |
| Wildwood | 68 | 286 | 279 | 0.35% | 3,865 | 0 | City |
| Broeck Pointe | 69 | 255 | 248 | 0.39% | 3,592 | 0 | City |
| Manor Creek | 70 | 245 | 240 | 0.41% | 4,455 | 0 | City |
| Crossgate | 71 | 224 | 220 | 0.45% | 4,392 | 0 | City |
| Glenview Manor | 72 | 211 | 207 | 0% | 2,453 | 0 | City |
| Mockingbird Valley | 73 | 189 | 184 | 0.53% | 913 | 0 | City |
| Thornhill | 74 | 188 | 184 | 0% | 4,178 | 0 | City |
| Maryhill Estates | 75 | 180 | 179 | 0% | 4,500 | 0 | City |
| Sycamore | 76 | 171 | 167 | 0% | 10,059 | 0 | City |
| Cambridge | 77 | 162 | 160 | 0% | 2,945 | 0 | City |
| Hills and Dales | 78 | 147 | 143 | 0% | 1,470 | 0 | City |
| Lincolnshire | 79 | 139 | 138 | 0% | 2,896 | 0 | City |
| Hickory Hill | 80 | 122 | 119 | 0% | 4,692 | 0 | City |
| Meadowbrook Farm | 81 | 117 | 115 | 0% | 4,333 | 0 | City |
| Ten Broeck | 82 | 95 | 94 | 0% | 436 | 0 | City |
| South Park View | 83 | 0 | 0 | 0 | 0 | City |
Louisville is the largest city in Jefferson County, with a population of 644,291.
South Park View is the smallest city in Jefferson County, with a population of 0.
There are 83 cities in Jefferson County, Kentucky.