| C.Post. | Localité | Commune |
|---|---|---|
| 7971 | WADELINCOURT | BELOEIL |
| 6223 | WAGNELEE | FLEURUS |
| 6900 | WAHA | MARCHE-EN-FAMENNE |
| 5377 | WAILLET | SOMME-LEUZE |
| 4950 | WAIMES | WAIMES |
| 5650 | WALCOURT | WALCOURT |
| 1457 | WALHAIN | WALHAIN |
| 1457 | WALHAIN-SAINT-PAUL | WALHAIN |
| 4711 | WALHORN | LONTZEN |
| 5570 | WANCENNES | BEAURAING |
| 4020 | WANDRE | LIEGE |
| 6224 | WANFERCEE-BAULET | FLEURUS |
| 6220 | WANGENIES | FLEURUS |
| 5564 | WANLIN | HOUYET |
| 4980 | WANNE | TROIS-PONTS |
| 7861 | WANNEBECQ | LESSINES |
| 4280 | WANSIN | HANNUT |
| 4520 | WANZE | WANZE |
| 7548 | WARCHIN | TOURNAI |
| 7740 | WARCOING | PECQ |
| 6600 | WARDIN | BASTOGNE |
| 4300 | WAREMME | WAREMME |
| 5310 | WARET-LA-CHAUSSEE | EGHEZEE |
| 4217 | WARET-L'EVEQUE | HERON |
| 5080 | WARISOULX | LA BRUYERE |
| 5537 | WARNANT | ANHEE |
| 4530 | WARNANT-DREYE | VILLERS-LE-BOUILLET |
| 7784 | WARNETON | COMINES-WARNETON |
| 7340 | WARQUIGNIES | COLFONTAINE |
| 4608 | WARSAGE | DALHEM |
| 4590 | WARZEE | OUFFET |
| 7340 | WASMES | COLFONTAINE |
| 7604 | WASMES-AUDEMEZ-BRIFFOEIL | PERUWELZ |
| 7390 | WASMUEL | QUAREGNON |
| 4219 | WASSEIGES | WASSEIGES |
| 1410 | WATERLOO | WATERLOO |
| 1170 | WATERMAEL-BOITSFORT | WATERMAEL-BOITSFORT |
| 7910 | WATTRIPONT | FRASNES-LEZ-ANVAING |
| 7131 | WAUDREZ | BINCHE |
| 5540 | WAULSORT | HASTIERE |
| 1440 | WAUTHIER-BRAINE | BRAINE-LE-CHATEAU |
| 1300 | WAVRE | WAVRE |
| 5580 | WAVREILLE | ROCHEFORT |
| 6210 | WAYAUX | LES-BONS-VILLERS |
| 1474 | WAYS | GENAPPE |
| 4608 | WEERST | DALHEM |
| 4860 | WEGNEZ | PEPINSTER |
| 5523 | WEILLEN | ONHAYE |
| 4950 | WEISMES | WAIMES |
| 4840 | WELKENRAEDT | WELKENRAEDT |
| 6920 | WELLIN | WELLIN |
| 5100 | WEPION | NAMUR |
| 4190 | WERBOMONT | FERRIERES |
| 6940 | WERIS | DURBUY |
| 4600 | WEZEL | VISE |
| 7620 | WEZ-VELVAIN | BRUNEHAUT |
| 6666 | WIBRIN | HOUFFALIZE |
| 5100 | WIERDE | NAMUR |
| 7608 | WIERS | PERUWELZ |
| 5571 | WIEME | BEAURAING |
| 7370 | WIHERIES | DOUR |
| 4452 | WIHOGNE | JUPRELLE |
| 7904 | WILLAUPUIS | LEUZE-EN-HAINAUT |
| 7506 | WILLEMEAU | TOURNAI |
| 5575 | WILLERZIE | GEDINNE |
| 5570 | WINENNE | BEAURAING |
| 6860 | WITRY | LEGLISE |
| 7890 | WODECQ | ELLEZELLES |
| 7856 | WOELINGEN | LESSINES |
| 6780 | WOLKRANGE | MESSANCY |
| 1200 | WOLUWE-SAINT-LAMBERT | WOLUWE-SAINT-LAMBERT |
| 1150 | WOLUWE-SAINT-PIERRE | WOLUWE-SAINT-PIERRE |
| 4690 | WONCK | BASSENGE |
| 4360 | WOUTERINGEN | OREYE |
