Sejerø Postal Codes: 4592 | Kalundborg, Sjælland
The Postal Codes (Postnumre) for Sejerø is 4592 in Kalundborg, Sjælland, Kalundborg, Denmark. The table below lists Postal Codes and postcodes for places within Sejerø.
Postal Codes for Places in Sejerø
Showing 6 places in Sejerø. Last verified with official records on May 2, 2026.
| Kongstrup | |
| Mastrup | |
| Nordby | |
| Sejerby | |
| Sejerø | |
| Vester |
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Sample Address Format for Sejerø
[Sender Street Address]
[City, ZIP]
[Country]
Street Address / PO Box
Sejerø, Kalundborg, Sjælland, 4592
DENMARK
Sejerø on the Map
The map above highlights the geographic boundaries of the Sejerø parishes in Denmark.
Sejerø Quick Facts
| Country | Denmark (DK) |
|---|---|
| Administrative Path | Denmark → Sjælland → Kalundborg |
| Postal Code | 4592 |
| Regions | Sjælland |
| Municipalities | Kalundborg |
| ISO Codes | DK / DNK / 208 |
| Top-level domain (ccTLD) | .dk |
| Coordinates | 55.887, 11.146533 |
| Places | 6 |
What to Know About Sejerø
Key Facts
Sejerø is a small Danish island located in the Kalundborg Fjord off the northwestern coast of Zealand (Sjælland), Denmark's largest island. Situated approximately 15 kilometers west of Kalundborg municipality, Sejerø forms part of the Kalundborg administrative area within the Zealand region. The island covers an area of about 12.36 square kilometers and has a population of around 350-400 residents, making it one of the smaller inhabited islands in Denmark. Sejerø is characterized by its elongated shape, stretching approximately 12 kilometers in length but only about 1.5 kilometers at its widest point. The island features a mix of agricultural land, coastal landscapes, and small settlements, with Sejerø By serving as the main village. While Sejerø itself doesn't contain formal sub-regions or municipalities due to its small size, it represents a distinct geographical entity within Denmark's island geography. For those seeking to access postal code information or detailed location data for properties and addresses on Sejerø, the island falls under Denmark's comprehensive postal code system that covers even its smallest inhabited territories.