Top 20 largest postal codes by area
The largest postal code in France is 97370 (Maripasoula), in French Guiana, covering approximately 18 648 km² — larger than some European countries.
French Guiana dominates this ranking thanks to its vast forested municipalities. In metropolitan France, the largest postal code is 51800 (Sainte-Menehould) at 615 km² spanning 44 communes.
All-France ranking
| # | Postal code | Municipality | Territory | Area |
|---|---|---|---|---|
| 1 | 97370 | MARIPASOULA | 973 | 18 360 km² |
| 2 | 97390 | REGINA | 973 | 11 004 km² |
| 3 | 97330 | CAMOPI | 973 | 10 030 km² |
| 4 | 97360 | MANA | 973 | 6 588 km² |
| 5 | 97312 | ST ELIE | 973 | 5 680 km² |
| 6 | 97320 | ST LAURENT DU MARONI | 973 | 4 830 km² |
| 7 | 97314 | SAUL | 973 | 4 475 km² |
| 8 | 97311 | ROURA | 973 | 3 658 km² |
| 9 | 97350 | IRACOUBO | 973 | 2 762 km² |
| 10 | 97316 | PAPAICHTON | 973 | 2 628 km² |
| 11 | 97313 | ST GEORGES | 973 | 2 320 km² |
| 12 | 97310 | KOUROU | 973 | 2 160 km² |
| 13 | 97340 | GRAND SANTI | 973 | 2 112 km² |
| 14 | 97317 | APATOU | 973 | 2 020 km² |
| 15 | 97315 | SINNAMARY | 973 | 1 340 km² |
| 16 | 98834 | YATE | 1 336 km² | |
| 17 | 97380 | OUANARY | 973 | 1 080 km² |
| 18 | 98829 | THIO | 981 km² | |
| 19 | 98815 | HIENGHENE | 955 km² | |
| 20 | 98812 | BOULOUPARI | 826 km² |
Approximate areas computed from the geographic contours of the postal zones.
Metropolitan France ranking
| # | Postal code | Main municipality | Department | Area | Municipalities |
|---|---|---|---|---|---|
| 1 | 51800 | STE MENEHOULD | 51 | 614 km² | 44 |
| 2 | 40120 | ROQUEFORT | 40 | 582 km² | 13 |
| 3 | 73500 | MODANE | 73 | 543 km² | 10 |
| 4 | 04200 | SISTERON | 04 | 534 km² | 22 |
| 5 | 26400 | CREST | 26 | 522 km² | 25 |
| 6 | 51600 | SUIPPES | 51 | 500 km² | 17 |
| 7 | 52700 | ANDELOT BLANCHEVILLE | 52 | 498 km² | 34 |
| 8 | 41300 | SALBRIS | 41 | 497 km² | 7 |
| 9 | 33680 | LACANAU | 33 | 492 km² | 5 |
| 10 | 05100 | BRIANCON | 05 | 480 km² | 8 |
| 11 | 36500 | BUZANCAIS | 36 | 479 km² | 13 |
| 12 | 64490 | BEDOUS | 64 | 473 km² | 12 |
| 13 | 06420 | VALDEBLORE | 06 | 472 km² | 12 |
| 14 | 21400 | CHATILLON SUR SEINE | 21 | 471 km² | 29 |
| 15 | 10700 | ARCIS SUR AUBE | 10 | 466 km² | 29 |
| 16 | 55300 | ST MIHIEL | 55 | 461 km² | 46 |
| 17 | 36100 | ISSOUDUN | 36 | 459 km² | 17 |
| 18 | 06470 | PEONE | 06 | 459 km² | 11 |
| 19 | 04170 | ST ANDRE LES ALPES | 04 | 451 km² | 12 |
| 20 | 64120 | ST PALAIS | 64 | 449 km² | 36 |