---
id: "fi_postcode"
kind: "pattern"
status: "draft"
is_pii: true
categories: ["geo", "pii", "common"]
country: ["FI"]
langs: ["fi", "sv"]
quality: 100
url: "http://registry.apicrafter.io/datatype/fi_postcode"
---

# Finnish postal code (`fi_postcode`)

> **Draft.** Draft records have not been reviewed yet and may be incomplete or wrong; do not treat them as authoritative for legal or compliance decisions.

Postal code (postinumero) in Finland: five digits. Helsinki codes start with 00.

- Pattern of: `postindex`
- Personal data (PII): yes
- Categories: Geographic identifiers (geo), Personally identifiable information (pii), Common (common)
- Countries: Finland (FI)
- Languages: Finnish (fi), Swedish (sv)
- Classification: categorical

## Detection

Regular expression (Python `re`):

```
^\d{5}$
```

## Examples

- `00100` — Helsinki
- `33100` — Tampere
- `20100` — Turku
- `0010` (invalid example)

## Mappings

- fta: `POSTAL_CODE.POSTAL_CODE_FI`

## Supported by tools

- `fta`

## Translations

- ru: Почтовый индекс Финляндии

## Sources

- wikipedia: <https://en.wikipedia.org/wiki/Postal_codes_in_Finland>
- other: <https://github.com/tsegall/fta/blob/main/SemanticTypes.md>

## Quality

Score 100/100.

JSON: <http://registry.apicrafter.io/api/v1/datatypes/fi_postcode.json> · Edit: <https://github.com/apicrafter/metacrafter-registry/edit/main/data/datatypes/FI/geo/fi_postcode.yaml>