07–
Kody w prefiksie 07–
60 kodów
| Kod | Miasto | Adr. | Ulic |
|---|---|---|---|
| 07-100 | Węgrów | 5 803 | 181 |
| 07-104 | Stoczek | 2 318 | 18 |
| 07-106 | Miedzna | 1 486 | 24 |
| 07-110 | Grębków | 1 804 | 25 |
| 07-111 | Wierzbno | 1 216 | 2 |
| 07-112 | Czerwonka | 1 | 1 |
| 07-120 | Korytnica | 2 236 | 12 |
| 07-130 | Łochów | 6 842 | 164 |
| 07-132 | Ostrówek | 999 | 13 |
| 07-140 | Sadowne | 338 | 19 |
| 07-200 | Wyszków | 2 327 | 247 |
| 07-201 | Skuszew | 1 284 | 72 |
| 07-202 | Leszczydół-Nowiny | 1 135 | 56 |
| 07-203 | Popowo-Parcele | 2 167 | 142 |
| 07-205 | Rząśnik | 1 265 | 24 |
| 07-206 | Skorki | 489 | 1 |
| 07-207 | Nowy Lubiel | 831 | 28 |
| 07-210 | Długosiodło | 2 911 | 89 |
| 07-211 | Jaszczułty | 391 | 3 |
| 07-214 | Pniewo | 36 | 5 |
| 07-215 | Burlaki | 125 | 5 |
| 07-217 | Holendry | 390 | 56 |
| 07-221 | Brańszczyk | 2 010 | 44 |
| 07-230 | Młynarze | 684 | 95 |
| 07-300 | Ostrów Mazowiecka | 6 529 | 306 |
| 07-302 | Jelonki | 269 | 1 |
| 07-303 | Koskowo | 75 | 1 |
| 07-304 | Jasienica | 605 | 7 |
| 07-305 | Andrzejewo | 5 | 2 |
| 07-306 | Brok | 26 | 8 |
| 07-307 | Brok | 1 | 1 |
| 07-308 | Nowa Osuchowa | 1 335 | 10 |
| 07-310 | Komorowo | 574 | 33 |
| 07-311 | Wąsewo | 1 373 | 12 |
| 07-319 | Kiełczew | 18 | 6 |
| 07-320 | Małkinia Górna | 69 | 11 |
| 07-322 | Nur | 1 319 | 14 |
| 07-323 | Zaręby Kościelne | 1 234 | 12 |
| 07-324 | Szulborze Wielkie | 522 | 12 |
| 07-325 | Boguty-Pianki | 840 | 14 |
| 07-341 | Drwęcz | 1 | 1 |
| 07-400 | Ostrołęka | 1 | 1 |
| 07-401 | Laskowiec | 660 | 64 |
| 07-402 | Białobiel | 2 483 | 54 |
| 07-405 | Troszyn | 1 387 | 34 |
| 07-407 | Czerwin | 1 493 | 25 |
| 07-409 | Ostrołęka | 426 | 33 |
| 07-410 | Ostrołęka | 5 162 | 377 |
| 07-411 | Rzekuń | 2 119 | 126 |
| 07-415 | Olszewo-Borki | 2 195 | 109 |
| 07-416 | Nowa Wieś | 588 | 18 |
| 07-417 | Ostrołęka | 488 | 35 |
| 07-420 | Kadzidło | 2 903 | 109 |
| 07-430 | Myszyniec | 2 299 | 56 |
| 07-431 | Czarnia | 588 | 4 |
| 07-436 | Lipniki | 580 | 7 |
| 07-437 | Łyse | 985 | 30 |
| 07-438 | Dudy Puszczańskie | 593 | 1 |
| 07-440 | Goworowo | 2 863 | 24 |
| 07-841 | Drwęcz | 1 | 1 |