How to Address an International Letter to São Tomé and Príncipe

São Tomé and Príncipe, a small island nation in Central Africa, does not use postal codes for mail delivery. The postal system in the country relies on street names, house numbers, and Post Office Boxes (P.O. Box), especially in the capital, São Tomé. This guide provides the correct formats for residential, business, rural, PO Box, and military addresses, along with special considerations for government offices, NGOs, and courier services.

Standard Address Format in São Tomé and Príncipe

The typical format for addressing a letter to São Tomé and Príncipe includes the following elements:

1. Recipient Name: The full name of the person or business receiving the letter.
2. Street Address or PO Box (Caixa Postal): The recipient’s street address or Post Office Box number.
3. City/Town: The name of the city or town.
4. Country: Always include “SÃO TOMÉ AND PRÍNCIPE” in capital letters on the last line for international mail.

Detailed Format Breakdown

1. Recipient Name
   The recipient’s full name should be written on the first line. For business addresses, include the company name first, followed by the recipient’s name or department.

   Example:
   Carlos dos Santos
   or
   ABC Ltd.
   Attn: Carlos dos Santos

2. Street Address or PO Box (Caixa Postal)
   Provide the street name and house/building number for residential or business addresses. If the recipient uses a Post Office Box, write “Caixa Postal” followed by the box number.

   Example:
   Rua de Angola 45
   or
   Caixa Postal 123

3. City/Town
   Include the name of the city or town. The capital city is São Tomé, but other locations like Santo António (on Príncipe Island) may also be used.

   Example:
   São Tomé
   or
   Santo António

4. Country Name
   For international mail, always write “SÃO TOMÉ AND PRÍNCIPE” in capital letters on the last line.

   Example:
   SÃO TOMÉ AND PRÍNCIPE

Residential Address Format

For residential addresses, include the recipient’s name, street address or PO Box, city/town, and country.

Example:
Carlos dos Santos
Rua de Angola 45
São Tomé
SÃO TOMÉ AND PRÍNCIPE

Business Address Format

For business addresses, include the company name on the first line, followed by the recipient’s name or department. The rest of the address follows the standard format.

Example:
ABC Ltd.
Attn: Carlos dos Santos
Rua de Angola 45
São Tomé
SÃO TOMÉ AND PRÍNCIPE

PO Box Address Format

For letters sent to a Post Office Box, replace the street address with “Caixa Postal” followed by the appropriate box number.

Example:
Carlos dos Santos
Caixa Postal 123
Santo António
SÃO TOMÉ AND PRÍNCIPE

Rural Address Format

In rural areas where formal street names may not exist, use the name of the village or settlement, followed by the nearest larger town and country.

Example:
Maria Costa
Village of Monte Café
São Tomé
SÃO TOMÉ AND PRÍNCIPE

Military Address Format

For military personnel stationed in São Tomé and Príncipe, mail generally follows the civilian postal system. If applicable, include the military unit or base information.

Example:
Rank and Full Name
Military Base Name
Caixa Postal 456
São Tomé
SÃO TOMÉ AND PRÍNCIPE

Government Office Address

For mail addressed to government offices in São Tomé and Príncipe, include the name of the office or department before the street address or PO Box.

Example:
Ministério dos Negócios Estrangeiros
Rua de Angola 12
São Tomé
SÃO TOMÉ AND PRÍNCIPE

International Addressing for NGOs and Organizations

For international organizations or NGOs operating in São Tomé and Príncipe, include the organization’s name and specific department.

Example:
UNICEF São Tomé
Attn: Health Services
Rua de Angola 45
São Tomé
SÃO TOMÉ AND PRÍNCIPE

Addressing for Courier vs. Postal Services

When using courier services such as DHL or FedEx, include additional contact details such as phone numbers, as couriers may require specific delivery instructions, especially for rural or less accessible areas.

Example (Courier):
Carlos dos Santos
Rua de Angola 45
São Tomé
SÃO TOMÉ AND PRÍNCIPE
Phone: +239 222 1234

Addressing for Multiple Recipients

When addressing a letter to multiple recipients at the same address, list the names on separate lines.

Example (Family):
The Santos Family
Caixa Postal 789
São Tomé
SÃO TOMÉ AND PRÍNCIPE

Example (Business Department):
ABC Ltd.
Attn: Finance Department
Caixa Postal 789
São Tomé
SÃO TOMÉ AND PRÍNCIPE

Special Considerations

• Postal Codes: São Tomé and Príncipe does not use postal codes. Ensure that the street address or P.O. Box is correct for proper mail routing.

• Rural Addressing: In rural areas where formal street names may not exist, use the village or settlement name and the nearest larger town for proper mail routing.

• Language: Portuguese is the official language of São Tomé and Príncipe, but addresses for international mail should be written in either Portuguese or English, with “SÃO TOMÉ AND PRÍNCIPE” in capital letters.

Commonly Accepted Abbreviations

• Caixa Postal (C.P.) for Post Office Box
• Rua for Street
• No. for Number (House or Building Number)

Key Tips for Formatting

• Capitalization: Write the address in capital letters for clarity and legibility.
• Left Alignment: Ensure all lines of the address are left-aligned for ease of reading and postal processing.
• Phone Number for Couriers: Providing a contact phone number is recommended for courier services, especially in rural or less accessible areas.
• Postal Code Usage: São Tomé and Príncipe does not use postal codes, so ensure the street address or P.O. Box number is correct.