Postcode areas 52XXX
- Postcode area 52062 Aachen
- Postcode area 52064 Aachen
- Postcode area 52066 Aachen
- Postcode area 52068 Aachen
- Postcode area 52070 Aachen
- Postcode area 52072 Aachen
- Postcode area 52074 Aachen
- Postcode area 52076 Aachen
- Postcode area 52078 Aachen
- Postcode area 52080 Aachen
- Postcode area 52134 Herzogenrath
- Postcode area 52146 Würselen
- Postcode area 52152 Simmerath
- Postcode area 52156 Monschau
- Postcode area 52159 Roetgen
- Postcode area 52222 Stolberg (Rhld.)
- Postcode area 52223 Stolberg (Rhld.)
- Postcode area 52224 Stolberg
- Postcode area 52249 Eschweiler
- Postcode area 52349 Düren
- Postcode area 52351 Düren
- Postcode area 52353 Düren
- Postcode area 52355 Düren
- Postcode area 52372 Kreuzau
- Postcode area 52379 Langerwehe
- Postcode area 52382 Niederzier
- Postcode area 52385 Nideggen
- Postcode area 52388 Nörvenich
- Postcode area 52391 Vettweiß
- Postcode area 52393 Hürtgenwald
- Postcode area 52396 Heimbach
- Postcode area 52399 Merzenich
- Postcode area 52428 Jülich
- Postcode area 52441 Linnich
- Postcode area 52445 Titz
- Postcode area 52457 Aldenhoven
- Postcode area 52459 Inden
- Postcode area 52477 Alsdorf
- Postcode area 52499 Baesweiler
- Postcode area 52511 Geilenkirchen
- Postcode area 52525 Waldfeucht, Heinsberg
- Postcode area 52531 Übach-Palenberg
- Postcode area 52538 Gangelt, Selfkant