| Locality | Post Code |
|---|---|
| Björkvik, Katrineholm | 641 |
| Julita, Katrineholm | 643 |
| Katrineholm, Katrineholm | 641 |
| Sköldinge, Katrineholm | 641 |
| Valla, Katrineholm | 641 |
| Södermanland Postal Codes | |
|---|---|
| Vingåker | Trosa |
| Strängnäs | Oxelösund |
| Nyköping | Katrineholm |
| Gnesta | Flen |
| Eskilstuna | |