09–
Kody w prefiksie 09–
78 kodów
| Kod | Miasto | Adr. | Ulic |
|---|---|---|---|
| 09-100 | Płońsk | 5 571 | 189 |
| 09-102 | Grabie | 1 | 1 |
| 09-104 | Sarbiewo | 52 | 1 |
| 09-105 | Dziektarzewo | 49 | 1 |
| 09-110 | Sochocin | 2 143 | 34 |
| 09-113 | Czestków-Osiedle | 1 | 1 |
| 09-120 | Nowe Miasto | 852 | 55 |
| 09-130 | Baboszewo | 1 949 | 31 |
| 09-131 | Joniec | 1 983 | 2 |
| 09-134 | Siemiątkowo | 1 | 1 |
| 09-135 | Siemiątkowo | 961 | 19 |
| 09-136 | Unieck | 117 | 1 |
| 09-138 | Koziebrody | 166 | 1 |
| 09-140 | Raciąż | 3 078 | 52 |
| 09-141 | Szczytno | 5 | 1 |
| 09-142 | Kroczewo | 806 | 40 |
| 09-145 | Chociszewo | 281 | 1 |
| 09-150 | Czerwińsk nad Wisłą | 1 747 | 17 |
| 09-151 | Nowe Przybojewo | 770 | 1 |
| 09-152 | Krysk | 1 272 | 1 |
| 09-162 | Nacpolsk | 747 | 4 |
| 09-164 | Dzierzążnia | 920 | 1 |
| 09-166 | Stare Gralewo | 101 | 1 |
| 09-191 | Popielżyn Górny | 1 | 1 |
| 09-200 | Sierpc | 3 585 | 187 |
| 09-203 | Borkowo Wielkie | 1 | 1 |
| 09-204 | Rościszewo | 1 165 | 21 |
| 09-209 | Psary | 30 | 1 |
| 09-210 | Drobin | 2 091 | 37 |
| 09-212 | Lelice | 412 | 21 |
| 09-213 | Gozdowo | 1 457 | 60 |
| 09-214 | Mochowo-Parcele | 75 | 6 |
| 09-215 | Bożewo | 1 625 | 58 |
| 09-216 | Gójsk | 11 | 2 |
| 09-226 | Zawidz Kościelny | 67 | 7 |
| 09-227 | Szczutowo | 226 | 13 |
| 09-228 | Ligowo | 28 | 6 |
| 09-230 | Bielsk | 2 372 | 54 |
| 09-300 | Żuromin | 1 800 | 122 |
| 09-304 | Lubowidz | 513 | 27 |
| 09-310 | Zielona | 1 319 | 21 |
| 09-317 | Lutocin | 1 183 | 17 |
| 09-320 | Bieżuń | 113 | 19 |
| 09-321 | Sławęcin | 3 | 1 |
| 09-336 | Milewo | 1 | 1 |
| 09-400 | Płock | 3 014 | 276 |
| 09-401 | Płock | 1 781 | 87 |
| 09-402 | Płock | 2 538 | 169 |
| 09-407 | Płock | 864 | 57 |
| 09-408 | Płock | 1 194 | 78 |
| 09-409 | Płock | 12 | 10 |
| 09-410 | Płock | 3 382 | 159 |
| 09-411 | Biała | 1 504 | 31 |
| 09-412 | Nowe Proboszczewice | 875 | 39 |
| 09-413 | Sikórz | 883 | 1 |
| 09-414 | Brudzeń Duży | 1 696 | 40 |
| 09-418 | Płock | 1 | 1 |
| 09-440 | Staroźreby | 156 | 24 |
| 09-442 | Rogozino | 773 | 48 |
| 09-450 | Wyszogród | 1 453 | 38 |
| 09-451 | Radzanowo | 231 | 33 |
| 09-452 | Blichowo | 712 | 1 |
| 09-454 | Bulkowo-Kolonia | 854 | 11 |
| 09-460 | Mała Wieś | 2 127 | 34 |
| 09-470 | Bodzanów | 1 797 | 73 |
| 09-471 | Nowe Miszewo | 1 041 | 46 |
| 09-472 | Słupno | 2 111 | 147 |
| 09-500 | Gostynin | 6 351 | 119 |
| 09-504 | Lucień | 601 | 1 |
| 09-505 | Nowy Duninów | 203 | 25 |
| 09-506 | Brwilno Dolne | 314 | 43 |
| 09-520 | Łąck | 1 800 | 79 |
| 09-522 | Dobrzyków | 1 | 1 |
| 09-530 | Gąbin | 3 769 | 125 |
| 09-533 | Słubice | 1 330 | 25 |
| 09-540 | Sanniki | 1 702 | 33 |
| 09-541 | Pacyna | 1 001 | 15 |
| 09-550 | Szczawin Kościelny | 275 | 11 |