Finland Postal Codes
Finland uses postal codes in the format ##### (# = digit, @ = letter).
3,576 postal codes are recorded for Finland in the open data sources below.
In Finland a postal code is called a postinumero. You will see that term on forms and address labels.
Example postal codes
0055000011
Postal codes by place
The 60 places in Finland with the most postal codes recorded, listed alphabetically. Larger towns link to their own page.
| Place | Postal code | Codes recorded |
|---|---|---|
| Akaa | 37800 | 7 |
| Espoo | 02100 | 68 |
| Eurajoki | 27100 | 7 |
| Forssa | 30100 | 5 |
| Hamina | 49400 | 5 |
| Heinola | 18100 | 6 |
| Helsinki | 00002 | 144 |
| Hollola | 15860 | 4 |
| Hyvinkää | 05440 | 19 |
| Hämeenlinna | 13100 | 18 |
| Iisalmi | 74100 | 11 |
| Imatra | 55100 | 12 |
| Joensuu | 80100 | 14 |
| Jyväskylä | 40100 | 25 |
| Järvenpää | 04400 | 7 |
| Kajaani | 87100 | 13 |
| Kangasala | 36200 | 5 |
| Kemi | 94100 | 10 |
| Kemijärvi | 98100 | 5 |
| Kerava | 04200 | 8 |
| Kokkola | 67100 | 13 |
| Kotka | 48100 | 26 |
| Kouvola | 45100 | 8 |
| Kuopio | 70100 | 36 |
| Kuusamo | 93600 | 5 |
| Lahti | 15100 | 37 |
| Lappeenranta | 53100 | 22 |
| Lappi | 27220 | 5 |
| Lempäälä | 33880 | 9 |
| Lohja | 08100 | 16 |
| Mikkeli | 50100 | 17 |
| Nivala | 85500 | 9 |
| Nokia | 37100 | 7 |
| Oulu | 90100 | 36 |
| Pieksämäki | 76100 | 5 |
| Pietarsaari | 68600 | 5 |
| Pirkkala | 33920 | 5 |
| Pori | 28100 | 28 |
| Porvoo | 06100 | 9 |
| Raahe | 92100 | 5 |
| Raisio | 21120 | 7 |
| Rauma | 26100 | 7 |
| Riihimäki | 11100 | 9 |
| Rovaniemi | 96100 | 18 |
| Salo | 24100 | 6 |
| Sastamala | 32730 | 21 |
| Savonlinna | 57100 | 15 |
| Seinäjoki | 60100 | 10 |
| Sievi | 85320 | 6 |
| Säkylä | 27800 | 5 |
| Tammisaari | 10600 | 5 |
| Tampere | 33100 | 59 |
| Tornio | 94430 | 19 |
| Turku | 20100 | 41 |
| Tuusula | 04300 | 8 |
| Vaasa | 65100 | 16 |
| Vantaa | 01200 | 56 |
| Varkaus | 78200 | 13 |
| Vesilahti | 37350 | 5 |
| Ylivieska | 84100 | 7 |
Watch the leading zero
Some Finland postal codes begin with a zero, such as 00002. Spreadsheets and some web forms silently drop it, turning 00002 into 2 — which is either a different place or not a valid code at all. Format the column as text before pasting codes into a spreadsheet.
How an address is written in Finland
This is the order Finland's postal service expects. Square brackets mark what you replace.
[Recipient name]
[Street address]
FI-[Postal code (00550)] [City]
FINLAND
A postal code is required in a complete Finland address.
Look up a specific address
For the code covering one particular street or building, Finland's postal service publishes an official finder: support.posti.fi/fi/tyokalut/postinumerohaku.html. It is authoritative and kept current, which third-party copies often are not.
Country reference
| ISO 3166-1 alpha-2 | FI |
|---|---|
| ISO 3166-1 alpha-3 | FIN |
| Capital | Helsinki |
| Telephone code | +358 |
| Currency | Euro (EUR) |
| Internet TLD | .fi |
Sources and licensing
Postal code data from GeoNames, used under the Creative Commons Attribution 4.0 International licence. Address formats and validation rules derive from Google's international address metadata, cross-checked against Universal Postal Union addressing standards. Last verified August 2026. Confirm time-critical addresses with the destination country's postal operator.
Postal codes by town and city
2,270 places in Finland have a recorded postal code. The 29 largest have their own page; the rest are listed alphabetically.
Largest towns and cities
Helsinki · Espoo · Tampere · Vantaa · Oulu · Turku · Jyväskylä · Kuopio · Lahti · Pori · Joensuu · Lappeenranta · Vaasa · Hämeenlinna · Seinäjoki · Rovaniemi · Mikkeli · Kotka · Kokkola · Lohja · Hyvinkää · Kajaani · Savonlinna · Imatra · Sastamala · Tornio · Iisalmi · Varkaus · Kemi