Cook Islands Postal codes
Cook Islands
19
4 chars
11
2
Interactive Map
Explore Cook Islands's 11 provinces with our interactive map.
Find Post Offices
Locate post offices across Cook Islands. Find addresses and contact information.
Understanding Cook Islands Postal codes
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
Postal code format breakdown
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.
Administrative Hierarchy
How Cook Islands organises areas for postal codes
Province
11 totalDistrict
8 totalProvinces Directory
Browse all 11 top-level divisions
Addressing Mail to Cook Islands
Step-by-step guide for correct address formatting
Sample Address Block
Name; Street; City, State Postcode; Country
Delivery Best Practices
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.
Shipping to Cook Islands
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.
Frequently Asked Questions
Common questions about Cook Islands postal codes
What is the postal code format for Cook Islands?
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.
How many provinces does Cook Islands have?
Cook Islands has 11 provinces with postal code coverage. Use our browse tool to explore them.
How do I find my postal code in Cook Islands?
Use our free lookup or browse by province to find the exact postal code for your location.
Where do I write the postal code on a Cook Islands address?
The postal code is written on the same line as or immediately after the province, before the country name when mailing internationally.