There are 38 zip codes in Jefferson County, Kentucky. The most populated is 40214, located in Louisville. * 2024 populations estimated based on the latest ACS 5-year data.
Zip Code | Population | City |
|---|---|---|
| 40214 | 46,033 | Louisville |
| 40216 | 43,167 | Louisville |
| 40291 | 40,888 | Louisville |
| 40299 | 40,816 | Louisville |
| 40229 | 39,621 | Louisville |
| 40245 | 38,861 | Louisville |
| 40219 | 38,245 | Louisville |
| 40272 | 38,114 | Louisville |
| 40220 | 34,649 | Louisville |
| 40218 | 33,479 | Louisville |
| 40241 | 30,986 | Louisville |
| 40207 | 29,014 | Louisville |
| 40258 | 27,487 | Louisville |
| 40205 | 24,890 | Louisville |
| 40223 | 23,477 | Louisville |
| 40222 | 21,359 | Louisville |
| 40211 | 21,135 | Louisville |
| 40206 | 20,315 | Louisville |
| 40215 | 19,494 | Louisville |
| 40203 | 17,964 | Louisville |
| 40228 | 17,808 | Louisville |
| 40213 | 15,779 | Louisville |
| 40212 | 15,412 | Louisville |
| 40208 | 15,126 | Louisville |
| 40210 | 14,980 | Louisville |
| 40204 | 14,362 | Louisville |
| 40217 | 12,439 | Louisville |
| 40243 | 11,943 | Louisville |
| 40242 | 11,544 | Louisville |
| 40118 | 10,141 | Fairdale |
| 40202 | 7,340 | Louisville |
| 40023 | 6,293 | Fisherville |
| 40025 | 560 | Glenview |
| 40209 | 515 | Louisville |
| 40041 | 495 | Masonic Home |
| 40280 | 218 | Louisville |
| 40221 | 0 | Louisville |
| 40231 | 0 | Louisville |