PLZ in Niedersachsen - "A"
| Stadt | Kreis | Einwohner |
|---|
| Aurich | Aurich | 19,400 |
| Achim | Verden | 17,800 |
| Alfeld | Hildesheim | 12,500 |
| Adelebsen | Göttingen | 2,200 |
| Adelheidsdorf | Celle | 399 |
| Adenbüttel | Gifhorn | 680 |
| Adendorf | Lüneburg | 9,600 |
| Adenstedt | - | 434 |
| Aerzen | Hameln-Pyrmont | 3,100 |
| Affinghausen | Diepholz | 271 |
| Ahausen | Rotenburg (Wümme) | 631 |
| Ahlerstedt | Stade | 937 |
| Ahnsbeck | Celle | 1,300 |
| Ahnsen | Schaumburg | 1,200 |
| Alfhausen | Osnabrück | 1,500 |
| Algermissen | Hildesheim | 3,300 |
| Altenau | - | 1,200 |
| Altenmedingen | Uelzen | 420 |
| Amt Neuhaus | Lüneburg | 5,000 |
| Andervenne Niederdorf | - | - |
| Apelern | Schaumburg | 551 |
| Apen | Ammerland | 2,000 |
| Apensen | Stade | 2,700 |
| Artlenburg | Lüneburg | 1,300 |
| Asendorf | Diepholz | 771 |
| Auhagen | Schaumburg | 523 |
| Axstedt | Osterholz | 306 |