ZIP Code 40122 is located in Fort Knox Kentucky. 40122 is entirely within Hardin County. Regionally, it is located in Metro Louisville.
| ZIP Code Name | Fort Knox |
| Primary County | Hardin County |
| ZIP Code Type | Standard |
| Area Code(s) | 502 |
| Current Time | EDT |
| Coordinates | 37.90090561,-85.92911530 |
| Adjacent ZIP Codes | |
| Cities/Towns in 40122 | |
| Region | Metro Louisville |
| Metropolitan/Micropolitan Stat Area | Elizabethtown-Fort Knox, KY |
| Time Zone | Eastern Daylight Time |
| IANA Timezone | America/New_York |
| Area | 0.01253820 Square Miles |
| US Congressional Districts in 40122 | |
| Kentucky State Senate Districts in 40122 | |
| Kentucky State House of Representatives Districts in 40122 |