| Ville de regroupement | Ville | C.Pos | Langue |
| PERUWELZ | CALLENELLE | 7604 | F |
| ANTOING | CALONNE | 7642 | F |
| BRUGELETTE | CAMBRON-CASTEAU | 7940 | F |
| LENS | CAMBRON-SAINT-VINCENT | 7870 | F |
| PALISEUL | CARLSBOURG | 6850 | F |
| MORLANWELZ | CARNIERES | 7141 | F |
| MONS | CASTEAU | 7020 | F |
| SOIGNIES | CASTEAU | 7061 | F |
| WALCOURT | CASTILLON | 5650 | F |
| CELLES (HAINAUT…) | CELLES (HAINAUT…) | 7760 | F |
| FAIMES | CELLES (LIEGE…) | 4317 | F |
| HOUYET | CELLES (NAMUR…) | 5561 | F |
| SOUMAGNE | CEREXHE-HEUSEUX | 4632 | F |
| CERFONTAINE | CERFONTAINE | 5630 | F |
| OTTIGNIES-LOUVAIN-LA-NEUVE | CEROUX-MOUSTY | 1341 | F |
| HERVE | CHAINEUX | 4650 | F |
| VRESSE-SUR-SEMOIS | CHAIRIERE | 5550 | F |
| BRUXELLES | CHAMBRE DES REPRESENTANTS | 1008 | F |
| NAMUR | CHAMPION | 5020 | F |
| TENNEVILLE | CHAMPLON | 6971 | F |
| WELLIN | CHANLY | 6921 | F |
| ETALLE | CHANTEMELLE | 6742 | F |
| LEUZE-EN-HAINAUT | CHAPELLE-A-OIE | 7903 | F |
| LEUZE-EN-HAINAUT | CHAPELLE-A-WATTINES | 7903 | F |
| CHAPELLE-LEZ-HERLAIMONT | CHAPELLE-LEZ-HERLAIMONT | 7160 | F |
| VERLAINE | CHAPON-SERAING | 4537 | F |
| CHARLEROI | CHARLEROI | 6000 | F |
| CHARLEROI | CHARLEROI | 6030 | F |
| HERVE | CHARNEUX | 4654 | F |
| FLORENVILLE | CHASSEPIERRE | 6824 | F |
| CHASTRE | CHASTRE | 1450 | F |
| WALCOURT | CHASTRES | 5650 | F |
| CHASTRE | CHASTRE-VILLEROUX-BLANMONT | 1450 | F |
| CHATELET | CHATELET | 6200 | F |
| CHATELET | CHATELINEAU | 6200 | F |
| SAINT-LEGER (LUX.) | CHATILLON | 6747 | F |
| CHAUDFONTAINE | CHAUDFONTAINE | 4050 | F |
| CHAUDFONTAINE | CHAUDFONTAINE | 4053 | F |
| CHAUMONT-GISTOUX | CHAUMONT-GISTOUX | 1325 | F |
| SOIGNIES | CHAUSSEE-NOTRE-DAME-LOUVIGNIES | 7063 | F |
| CHAUDFONTAINE | CHENEE | 4053 | F |
| LIEGE | CHENEE | 4032 | F |
| GOUVY | CHERAIN | 6673 | F |
| VISE | CHERATTE | 4602 | F |
| TOURNAI | CHERCQ | 7521 | F |
| CINEY | CHEVETOGNE | 5590 | F |
| STOUMONT | CHEVRON | 4987 | F |
| CHIEVRES | CHIEVRES | 7950 | F |
| CHIMAY | CHIMAY | 6460 | F |
| CHIMAY | CHIMAY | 6464 | F |
| CHINY | CHINY | 6810 | F |
| FLEMALLE | CHOKIER | 4400 | F |
| HOUYET | CIERGNON | 5560 | F |
| CINEY | CINEY | 5590 | F |
| BRAIVES | CIPLET | 4260 | F |
| MONS | CIPLY | 7024 | F |
| BRUXELLES | CITE ADMINISTRATIVE DE L'ETAT | 1010 | F |
| TUBIZE | CLABECQ | 1480 | F |
| CLAVIER | CLAVIER | 4560 | F |
| THIMISTER-CLERMONT | CLERMONT (LIEGE…) | 4890 | F |
| WALCOURT | CLERMONT (NAMUR…) | 5650 | F |
| ENGIS | CLERMONT-SOUS-HUY | 4480 | F |
| NAMUR | COGNELEE | 5022 | F |
| COLFONTAINE | COLFONTAINE | 7340 | F |
| COMBLAIN-AU-PONT | COMBLAIN-AU-PONT | 4170 | F |
| HAMOIR | COMBLAIN-FAIRON | 4180 | F |
| HAMOIR | COMBLAIN-LA-TOUR | 4180 | F |
| COMINES-WARNETON | COMINES | 7780 | F |
| COMINES-WARNETON | COMINES-WARNETON | 7780 | F |
| COMINES-WARNETON | COMINES-WARNETON | 7784 | F |
| CINEY | CONNEUX | 5590 | F |
| MONT-SAINT-GUIBERT | CORBAIS | 1435 | F |
| BOUILLON | CORBION | 6838 | F |
| FRASNES-LEZ-ANVAING | CORDES | 7910 | F |
| FLORENNES | CORENNE | 5620 | F |
| PEPINSTER | CORNESSE | 4860 | F |
| BIEVRE | CORNIMONT | 5555 | F |
| GEMBLOUX | CORROY-LE-CHATEAU | 5032 | F |
| CHAUMONT-GISTOUX | CORROY-LE-GRAND | 1325 | F |
| BERLOZ | CORSWAREM | 4257 | F |
| CHASTRE | CORTIL-NOIRMONT | 1450 | F |
| FERNELMONT | CORTIL-WODON | 5380 | F |
| CHARLEROI | COUILLET | 6010 | F |
| COURCELLES | COURCELLES | 6180 | F |
| ASSESSE | COURRIERE | 5336 | F |
| HAM-SUR-HEURE-NALINNES | COUR-SUR-HEURE | 6120 | F |
| COURT-SAINT-ETIENNE | COURT-SAINT-ETIENNE | 1490 | F |
| HERON | COUTHUIN | 4218 | F |
| ANDENNE | COUTISSE | 5300 | F |
| LASNE | COUTURE-SAINT-GERMAIN | 1380 | F |
| COUVIN | COUVIN | 5660 | F |
| HANNUT | CRAS-AVERNAS | 4280 | F |
| HANNUT | CREHEN | 4280 | F |
| CRISNEE | CRISNEE | 4367 | F |
| ESTINNES | CROIX-LEZ-ROUVEROY | 7120 | F |
| SAINT-VITH | CROMBACH | 4784 | F |
| SANKT VITH | CROMBACH | 4784 | D |
| ASSESSE | CRUPET | 5332 | F |
| MONS | CUESMES | 7033 | F |
| BERTRIX | CUGNON | 6880 | F |
| COUVIN | CUL-DES-SARTS | 5660 | F |
| HOUYET | CUSTINNE | 5562 | F |
