FI Finland Major Regions Postal Code Details
🏛️ Turunmaa · Varsinais Suomi
25860
Björkboda
25870
Dragsfjärd
25940
Hiittinen
25960
Högsåra
21760
Houtskari
23390
Iniö
25930
Kasnäs
25700
Kemiö
25760
Kiila
21610
Kirjala
21720
Korpoström
21710
Korppoo
21630
Lielahti Tl
21650
Lillandet
25810
Mark
25730
Mjösund
21770
Mossala
21660
Nauvo
25840
Nivelax
21750
Norrskata
21680
Nötö
21600
Parainen
21670
Pärnäinen
25950
Rosala
25650
Strömma
25900
Taalintehdas
21740
Utö
25910
Vänoxa
25830
Västanfjärd
25820
Vestlax
25710
Vreta
📮FI Finland Regional Postal Code FAQ & Postal Regulations
📮 What is the format of Finnish postal codes?
Finnish postal codes consist of 5 digits only (e.g., 00100). The first two digits indicate the region, while the last three specify streets or neighborhoods.
🔍 How to find a Finnish postal code?
Use the postal code search tool on Posti.fi official website by entering an address or city name. Map apps like Google Maps also provide real-time postal code lookup.
⚠️ Will an incorrect postal code cause lost mail?
Mail with correct addresses usually arrives but may be delayed (up to 5 days). Use Posti's parcel tracking service for real-time updates.
🌍 Are special markings needed for international mail?
Always write "FINLAND" in bold. For parcels exceeding €22 value, include a customs declaration form detailing contents and value to avoid delays.
📬 Do PO Box codes differ from street codes?
Yes! PO Box codes start with "PL" (e.g., PL 100). Never mix street and PO Box codes – this may cause delivery failures.