Postal codes in Portugal

The Portuguese postal code (código postal) is formed by four digits, a hyphen, then three digits, followed by a postal location of up to 25 characters in capitals.

Avenida Marconi 4C
1000-205 Lisboa[1]

Postal codes are given at the building block level and also to designated addresses with high volumes of mail. The first digit designates one of nine postal regions; the following two digits designate postal distribution centers; the fourth digit is 0 if it belongs to a capital of municipality, 5 if not, or any other digit if it is a designated address; the last three digits sort building blocks and designated addresses. The more important the city, the more rounded is the number formed by the first four digits.