Postal codes in Finland
Finland has used five-digit numeric postal codes since the 1970s. The first and second digits designate the general area of the municipality of the address, while the last three designate a smaller region within that larger area. The numeric postal code is usually accompanied by a written name for the smaller region.
Corporations receiving large amounts of mail may have their own postal codes, also consisting of a five-digit numeric code and the name of the company.
- Posti n.d.
- Posti (n.d.). "Postinumerot ja postinumeroalueet Suomessa" [Postal codes and postal code regions in Finland] (in Finnish). Retrieved 31 August 2022.