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- Le code officiel géographique Dunkerque est 048.
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- Armbouts-Cappel (59016)
- Arnèke (59018)
- Bambecque (59046)
- Bergues (59067)
- Bierne (59082)
- Bissezeele (59083)
- Bollezeele (59089)
- Bourbourg (59094)
- Bray-Dunes (59107)
- Brouckerque (59110)
- Broxeele (59111)
- Cappelle-Brouck (59130)
- Cappelle-la-Grande (59131)
- Coudekerque-Branche (59155)
- Craywick (59159)
- Crochte (59162)
- Drincham (59182)
- Dunkerque (59183)
- Eringhem (59200)
- Esquelbecq (59210)
- Ghyvelde (59260)
- Grand-Fort-Philippe (59272)
- Grande-Synthe (59271)
- Gravelines (59273)
- Herzeele (59305)
- Holque (59307)
- Hondschoote (59309)
- Houtkerque (59318)
- Hoymille (59319)
- Killem (59326)
- Lederzeele (59337)
- Ledringhem (59338)
- Leffrinckoucke (59340)
- Looberghe (59358)
- Loon-Plage (59359)
- Merckeghem (59397)
- Millam (59402)
- Nouvelle-Église (62623)
- Ochtezeele (59443)
- Oost-Cappel (59448)
- Oudezeele (59453)
- Pitgam (59463)
- Polincove (62662)
- Quaëdypre (59478)
- Rexpoëde (59499)
- Rubrouck (59516)
- Ruminghem (62730)
- Saint-Folquin (62748)
- Saint-Georges-sur-l'Aa (59532)
- Saint-Omer-Capelle (62766)
- Saint-Pierre-Brouck (59539)
- Sainte-Marie-Kerque (62756)
- Socx (59570)
- Spycker (59576)
- Steene (59579)
- Téteghem-Coudekerque-Village (59588)
- Uxem (59605)
- Vieille-Église (62852)
- Volckerinckhove (59628)
- Warhem (59641)
- Watten (59647)
- West-Cappel (59657)
- Wormhout (59663)
- Wylder (59665)
- Zegerscappel (59666)
- Zuydcoote (59668)