Postal codes in Sweden
For the purposes of directing mail, Sweden is divided into a number of postcode areas. The Swedish postcode (Swedish: postnummer) system is administered by the Swedish Mail Service (Swedish: Posten AB) on behalf of the Post and Telecom Agency (Swedish: Post- och telestyrelsen).
Until 1968, mail in Sweden was sorted only according to geographic location, which meant that postal workers had to learn all mail centers in Sweden, and what particular mail trains that called the place. In 1967, it was decided that postcodes would be introduced in Sweden as of May 12, 1968. Since then, the postcode system has been essentially the same; but a slight reform of the postcode system was carried out during the mid-1990s as all remaining mail terminals were equipped with automatic mail sorting machines. In 2008, Sweden was divided into more than 16,100 postcode areas.
The Swedish postcode system is based on a five-digit number combination, divided into two groups of three and two digits. The principle of numbering is that the lower the postcode, the further south the place is located. Excluded from the principle are postcodes beginning with number 1, which represent the capital city, Stockholm. Mail delivery centers are divided into two-, three-, and five-digit positioning groups depending on the size of the geographical place. The two-position group has larger varieties, whereas the smallest belongs to the five-digit positioning group.
According to the system, a space shall be inserted between the third and fourth digit; as well as a double space between the postcode and the geographic location. The geographic location shall be written in capital letters.
A typical address would look like this:
- Sven Nilsson (First, and last name)
- Roslagsgatan 10 (Street, and number)
- 113 51 STOCKHOLM (Postcode, and geographic location)
Two-digit positioning 
The post codes are sorted by geographical location. Numbers starting with 10-19 are part of Stockholm; otherwise, the lower numbers are part of the bigger city areas in the south, and increase northwards.
|10x xx||Stockholm||Mailbox and business addresses|
|11x xx||Stockholm||Street addresses|
|20x xx||Malmö||Mailbox- and business addresses|
|21x xx||Malmö||Street addresses|
|40x xx||Gothenburg||Mailbox- and business addresses|
|41x xx||Gothenburg||Street addresses|
|97x xx||Luleå||Changed from 951 xx|
The third digit in the two-digit positioning indicate type of delivery, in most cases.
|Postcode||Type of delivery||Note|
|xx0 xx||Mail boxes and mail addresses|
|xx1 xx||Mail boxes and business addresses|
|xx2 xx||Regular mail delivery|
|xx3 xx||Regular mail delivery|
|xx4 xx||Regular mail delivery|
|xx5 xx||Countryside mail delivery|
|xx6 xx||Regular mail delivery|
|xx7 xx||Regular mail delivery|
|xx8 xx||Regular reply mail|
|xx9 xx||Temporary||Temporary postcodes|
The fourth and fifth digit indicate the geographic area. Postcodes with the same first four digits may represent a part of a city or equivalent.
Three-digit positioning 
The first two digits indicate the geographical area in. Previously, these figures indicated the mail terminal that sorted mail for the particular geographic location.
|12x xx - 15x xx||Southern Stockholm metropolitan|
|16x xx - 19x xx||Northern Stockholm metropolitan|
|23x xx - 24x xx||South central Skåne|
|26x xx||North-western Skåne|
|27x xx||South-eastern Skåne|
|28x xx||Northern Skåne|
|29x xx||North-eastern Skåne, and western Blekinge|
|33x xx - 34x xx||South-western Småland|
|35x xx - 36x xx||Central Småland|
|37x xx||Central- and Eastern Blekinge|
|38x xx - 39x xx||Eastern Småland and Öland|
|42x xx - 47x xx||Parts of northern Gothenburg (Angered), Parts of Northern Halland, Bohuslän, and south-western Västergötland|
|51x xx - 54x xx||Remaining Västergötland|
|56x xx - 57x xx||Northern Småland|
|59x xx||Southern Östergötland|
|61x xx||Northern Östergötland, Southern Södermanland|
|64x xx||Southern Södermanland|
|65x xx - 68x xx||Dalsland and Värmland|
|69x xx, 71x xx||Närke|
|73x xx||North-eastern Närke and Västmanland|
|74x xx, 76x xx||Uppland|
|77x xx - 79x xx||Dalarna|
|81x xx||Gästrikland and northern Uppland|
|84x xx||Härjedalen and parts of Medelpad|
|87x xx - 89x xx||Ångermanland|
|91x xx - 93x xx||Västerbottens län|
|94x xx - 96x xx||Norrbottens län|
|98x xx||North-western Norrbottens län|
The third figure in combination with the first two indicates the mail delivery location. The fourth figure is the type of delivery.
|Postcode||Type of delivery|
|xxx 0x||Mailboxes- and postal addresses|
|xxx 1x||Mailboxes, business addresses|
|xxx 2x||Regular mail delivery, mailboxes, and reply mail|
|xxx 3x||Regular mail delivery|
|xxx 4x||Regular mail delivery|
|xxx 5x||Regular mail delivery|
|xxx 6x||Regular mail delivery|
|xxx 7x||Regular mail delivery|
|xxx 8x||Reply mail, and business addresses|
|xxx 9x||Countryside mail delivery|
A five-digit positions location is a small location for only a few zip codes are needed to smooth mail delivery. Since the reform of the postcode system in the mid-1990s, only a few five-digit positions locations remain. These locations are often so small and the remote that it is not practically possible to transfer all mail to a larger three-digit locations. five-digit position locations are usually in the archipelago and in the mountains.
See also 
- Swedish Postal Act, No. 1684 of December 22, 1993.
- The last printed postcode directory was published by the Swedish Mail Service in 1996.
- Postcodes may be searched on the Mail Service's website here.
- Statistics Sweden has a detailed table of postcode, region, municipality and city here.
- Postcode look-up and calculation of distances / radius between postcodes in Sweden.