Cook Islands
19
4 chars
11
2
Explore Cook Islands's 11 provinces with our interactive map.
Locate post offices across Cook Islands. Find addresses and contact information.
Retail checkout for Cook Islands should validate four-digit tokens such as 1000; CK rate engines and delivery promises key off that value alongside.
Key Characteristics
Code Type
Numeric
Administered By
National Postal Service
Coverage
Nationwide
Cook Islands uses numeric postal codes with 4 digits (example: 1000). In our directory, these codes are organized from provinces down to villages.
Visual Structure
Retail checkout for Cook Islands should validate four-digit tokens such as 1000; CK rate engines and delivery promises key off that value alongside.
How Cook Islands organises areas for postal codes
Browse all 11 top-level divisions
Step-by-step guide for correct address formatting
Sample Address Block
Name; Street; City, State Postcode; Country
Tips for successful mail and package delivery
Always verify the postal code
Verify your postal code is complete (4 digits) before sending. Use our lookup tool to confirm accuracy.
Include all address levels
Write the full address hierarchy for best results.
Avoid abbreviations
Write out full province names to prevent sorting errors.
Don't omit the postal code
Missing postal codes cause significant delivery delays and may result in returned mail.
What to know when sending packages
Standard domestic delivery within Cook Islands typically takes 2–7 business days. International packages require complete address information including the postal code. Always include the correct 4-character code for fastest routing.
Common questions about Cook Islands postal codes
Cook Islands uses 4 digits in the postal code. An example is 1000. Retail checkout for Cook Islands should validate four-digit tokens such as 1000; CK rate engines and delivery promises key off that value alongside.
Cook Islands has 11 provinces with postal code coverage. Use our browse tool to explore them.
Use our free lookup or browse by province to find the exact postal code for your location.
The postal code is written on the same line as or immediately after the province, before the country name when mailing internationally.
Cook Islands
19
4 chars
11
2
Explore Cook Islands's 11 provinces with our interactive map.
Locate post offices across Cook Islands. Find addresses and contact information.
Retail checkout for Cook Islands should validate four-digit tokens such as 1000; CK rate engines and delivery promises key off that value alongside.
Key Characteristics
Code Type
Numeric
Administered By
National Postal Service
Coverage
Nationwide
Cook Islands uses numeric postal codes with 4 digits (example: 1000). In our directory, these codes are organized from provinces down to villages.
Visual Structure
Retail checkout for Cook Islands should validate four-digit tokens such as 1000; CK rate engines and delivery promises key off that value alongside.
How Cook Islands organises areas for postal codes
Browse all 11 top-level divisions
Step-by-step guide for correct address formatting
Sample Address Block
Name; Street; City, State Postcode; Country
Tips for successful mail and package delivery
Always verify the postal code
Verify your postal code is complete (4 digits) before sending. Use our lookup tool to confirm accuracy.
Include all address levels
Write the full address hierarchy for best results.
Avoid abbreviations
Write out full province names to prevent sorting errors.
Don't omit the postal code
Missing postal codes cause significant delivery delays and may result in returned mail.
What to know when sending packages
Standard domestic delivery within Cook Islands typically takes 2–7 business days. International packages require complete address information including the postal code. Always include the correct 4-character code for fastest routing.
Common questions about Cook Islands postal codes
Cook Islands uses 4 digits in the postal code. An example is 1000. Retail checkout for Cook Islands should validate four-digit tokens such as 1000; CK rate engines and delivery promises key off that value alongside.
Cook Islands has 11 provinces with postal code coverage. Use our browse tool to explore them.
Use our free lookup or browse by province to find the exact postal code for your location.
The postal code is written on the same line as or immediately after the province, before the country name when mailing internationally.