Postal Codes

United States

USPS postal codes (ZIP codes) are 5 digits long (zero-padded).

ZIP+4 is an extension of the standard postal code system, involving an additional (trailing with hyphen delimiter) postal code that is 4 digits long (zero-padded).

For more details, see here.

United Kingdom

Postal codes in the modern UK are 6 to 8 characters long, delimited by a space character into 2 segments.

For more details, see here.

Canada

Canadian postal codes are 6 characters long in the format A1A 1A1. Note the space character delimiting the 3 character segments.

For more details, see here.

Germany

German postal codes are 5 digits long (zero-padded). The leading digit indicates a region, though these regions do not follow other political boundaries.

For more details, see here.

Japan

Japanese postal codes are 7 digits long (zero-padded) with a hyphen between the 3rd and 4th digits (i.e. 123-4567). Within Japan, the postal code mark (〒) is often prefixed. The leading 2 digits indicate a prefecture.

For more details, see here.

South Korea

South Korean postal codes are 5 digits long (zero-padded). The leading 2 digits indicate a province-level region, and the leading 3 digits indicate a county-level region.

For more details, see here.

Australia

Australia Post postal codes are 4 digits long (zero-padded). The leading 2 digits indicate a state.

For more details, see here

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