| Barren Zip Code, Kentucky - USA | |||
| AUSTIN | 42123 | 36.815869 | -85.992039 |
| CAVE CITY | 42127 | 37.10279 | -85.908887 |
| EIGHTY EIGHT | 42130 | 36.91297 | -85.775282 |
| ETOILE | 42131 | 36.819311 | -85.91168 |
| GLASGOW | 42141 | 36.942763 | -85.941203 |
| GLASGOW | 42142 | 36.946326 | -85.957797 |
| HISEVILLE | 42152 | 37.098753 | -85.816472 |
| LUCAS | 42156 | 36.840503 | -85.995572 |
| PARK CITY | 42160 | 36.965149 | -86.013864 |
Both Thomas Jefferson and John Adams passed away on July 4, 1826, 50 years after the Declaration of Independence was signed.