Northern Ostrobothnia postal codes — Northern Finland, Finland

Northern Ostrobothnia is a city of Northern Finland, Finland.

Towns in Northern Ostrobothnia include Oulu, Ylivieska, Oulunkaari, Raahe and Nivala-Haapajarvi, together with the surrounding localities whose postal codes are listed above.

How postal codes work in Northern Ostrobothnia

Finland uses a single national postal-code format, written as 99999. Five digits, numeric only. Codes in Northern Ostrobothnia follow that format like everywhere else in the country, for example 91310 for Arkala.

Every code listed here for Northern Ostrobothnia begins with the prefix 90, which groups its delivery areas together within Finland's national numbering.

Postal codes across Finland, Northern Ostrobothnia included, are issued and maintained by Posti Group. Reference information is available at www.posti.fi.

Addressing format

Addresses in Finland are written [Street name] [House number], [Postal code] [City], and an address in Northern Ostrobothnia follows that same order:

Recipient name
[Street name] [House number], 91310 Arkala

What this dataset covers

This reference dataset lists 50 postal codes for Northern Ostrobothnia, each paired with its locality and, where the source provides them, coordinates and a time zone.