Postcode areas 55XXX
- Postcode area 55116 Mainz
- Postcode area 55118 Mainz
- Postcode area 55120 Mainz
- Postcode area 55122 Mainz
- Postcode area 55124 Mainz
- Postcode area 55126 Mainz
- Postcode area 55127 Mainz
- Postcode area 55128 Mainz
- Postcode area 55129 Mainz Ebersheim, Hechtsheim
- Postcode area 55130 Mainz
- Postcode area 55131 Mainz
- Postcode area 55218 Ingelheim am Rhein
- Postcode area 55232 Alzey
- Postcode area 55234 Albig
- Postcode area 55237 Flonheim
- Postcode area 55239 Gau-Odernheim
- Postcode area 55246 Wiesbaden
- Postcode area 55252 Mainz-Kastel
- Postcode area 55257 Budenheim
- Postcode area 55262 Heidesheim am Rhein
- Postcode area 55263 Wackernheim
- Postcode area 55268 Nieder-Olm
- Postcode area 55270 Ober-Olm
- Postcode area 55271 Stadecken-Elsheim
- Postcode area 55276 Oppenheim
- Postcode area 55278 Mommenheim
- Postcode area 55283 Nierstein
- Postcode area 55286 Wörrstadt
- Postcode area 55288 Armsheim
- Postcode area 55291 Saulheim
- Postcode area 55294 Bodenheim
- Postcode area 55296 Harxheim
- Postcode area 55299 Nackenheim
- Postcode area 55411 Bingen am Rhein
- Postcode area 55413 Weiler bei Bingen
- Postcode area 55422 Bacharach, Breitscheid
- Postcode area 55424 Münster-Sarmsheim
- Postcode area 55425 Waldalgesheim
- Postcode area 55430 Oberwesel
- Postcode area 55432 Niederburg
- Postcode area 55435 Gau-Algesheim
- Postcode area 55437 Ockenheim
- Postcode area 55442 Stromberg
- Postcode area 55444 Seibersbach
- Postcode area 55450 Langenlonsheim
- Postcode area 55452 Guldental
- Postcode area 55457 Gensingen
- Postcode area 55459 Aspisheim, Grolsheim
- Postcode area 55469 Simmern/Hunsrück u.a.
- Postcode area 55471 Tiefenbach u.a.
- Postcode area 55481 Kirchberg u.a.
- Postcode area 55483 Dickenschied u.a.
- Postcode area 55487 Sohren
- Postcode area 55490 Gemünden
- Postcode area 55491 Büchenbeuren
- Postcode area 55494 Rheinböllen
- Postcode area 55496 Argenthal
- Postcode area 55497 Ellern (Hunsrück), Schnorbach
- Postcode area 55499 Riesweiler
- Postcode area 55543 Bad Kreuznach
- Postcode area 55545 Bad Kreuznach
- Postcode area 55546 Hackenheim
- Postcode area 55559 Bretzenheim
- Postcode area 55566 Sobernheim
- Postcode area 55568 Staudernheim
- Postcode area 55569 Monzingen
- Postcode area 55571 Odernheim am Glan
- Postcode area 55576 Sprendlingen
- Postcode area 55578 Wallertheim
- Postcode area 55583 Bad Kreuznach
- Postcode area 55585 Norheim u.a.
- Postcode area 55590 Meisenheim
- Postcode area 55592 Rehborn
- Postcode area 55593 Rüdesheim
- Postcode area 55595 Hargesheim
- Postcode area 55596 Waldböckelheim
- Postcode area 55597 Wöllstein
- Postcode area 55599 Gau-Bickelheim
- Postcode area 55606 Kirn
- Postcode area 55608 Bergen
- Postcode area 55618 Simmertal
- Postcode area 55619 Hennweiler
- Postcode area 55621 Hundsbach
- Postcode area 55624 Rhaunen
- Postcode area 55626 Bundenbach
- Postcode area 55627 Merxheim
- Postcode area 55629 Seesbach
- Postcode area 55743 Idar-Oberstein
- Postcode area 55756 Herrstein
- Postcode area 55758 Niederwörresbach
- Postcode area 55765 Birkenfeld u.a.
- Postcode area 55767 Brücken, Oberbrombach u.a.
- Postcode area 55768 Hoppstädten-Weiersbach
- Postcode area 55774 Baumholder
- Postcode area 55776 Berglangenbach, Ruschberg u.a.
- Postcode area 55777 Berschweiler bei Baumholder
- Postcode area 55779 Heimbach