San Marino Postal Codes

San Marino uses postal codes in the format 4789# (# = digit, @ = letter).

10 postal codes are recorded for San Marino in the open data sources below.

Postal codes by town and city

26 places in San Marino have a recorded postal code. The 0 largest have their own page; the rest are listed alphabetically.

Browse every place A–Z

A  B  C  D  F  G  M  R  S  T  V

Example postal codes

• 47890
• 47891
• 47895
• 47899

Largest places and their postal codes

The 26 largest places in San Marino by population, with a postal code for each. Larger towns link to their own page.

How an address is written in San Marino

This is the order San Marino's postal service expects. Square brackets mark what you replace.

[Recipient name]
[Street address]
[Postal code (47890)] [City]
SAN MARINO

A postal code is required in a complete San Marino address.

Look up a specific address

For the code covering one particular street or building, San Marino's postal service publishes an official finder: www.poste.it/cerca/index.html#/risultati-cerca-cap. It is authoritative and kept current, which third-party copies often are not.

Country reference

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.