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Cook Islands address format & examples

How to write a Cook Islander address

If you need addresses validated anywhere in the world, you can do so with Smarty, and now, you can also write a letter to the Cook Islands or anywhere in the world. (Ok. You could do that before, but now you’ll be empowered with the knowledge to do it the right way with our new address formatting guide.) We have global formatting pages just for you! Here’s the proper format for addressing mail to the Cook Islands:

  1. Premise and street - The building or unit number should be written just before the street.
  2. Dependent locality - Local area or neighborhood if applicable.
  3. City and postal code - City followed by postal code on the same line.
  4. Country - This can be shortened to COK if you want.
Cook Islands residential address format example

Cook Islands address examples

Residential address example4 Main Rd Avarua COK

Smarty address validation tools

Smarty® has a suite of address validation tools that can format, standardize, and validate Cook Islands addresses, plus addresses in 240+ other countries and territories worldwide. Validate your Cook Islander address with our tools.
Use the Single Address Verification Tool to verify and format 1 address at a time, the Bulk Address Validation Tool to verify and format a list addresses simultaneously, or use the International Street Address API to integrate address validation and formatting programmatically into your software systems and workflows.

Postal information

Cook Islands's national postal systemis "Cook Islands Post". As of recent data, Cook Islands Post services approximately 30 addresses, reflecting its extensive reach throughout Cook Islands. The organization manages a substantial network, indicative of its role as a major postal service provider in the region.
Administrative area types and count
15 islands, 2 groups
Administration area names and abbreviations

Aitutaki - AIU Atiu - AIT Mangaia - MGS Manihiki - MHK Mauke - MUK Mitiaro - MOI Nassau - NAS Palmerston - PMO Penrhyn - PEN Pukapuka - PUK Rakahanga - RAK Rarotonga - RAR Suwarrow - SUW Takutea - TAK

Term to describe postal codes
postal code
Postal code in language
postal code
Postal code format
N/A
Postal service provider and website

Cook Islands Post

Shoot! Looks like there isn't a national postal systems website for this location. Sorry about that.

Country information

Do you still need information beyond a Cook Islander address? Don’t worry. We’ve compiled tons of information from latitude and longitude to ISO codes and much more. You’ll be the Cook Islands address expert in no time if you start reading today.

Country/territory name
Cook Islands
ISO3
COK
ISO 3166-1 alpha-2 country code
CK
ISO 3166-1 alpha-3 country code
COK
ISO 3166-1 numeric country code
184
Endonym
Cook Islands
Total land area
236 KM²
Capital
Avarua
Other major cities
No other major cities

Population information

Total population
14,000 (2023)
Urban / rural distribution
75%/25%
Urban population
10,500
Rural population
3,500
Official language
English, Cook Islands Maori
All languages spoken
Cook Islands Maori, English
Most commonly used postal language
English
CC-BY 4.0 from worldbank.org
Now that you've seen our Cook Islander address examples and have become a wizard at Cook Islands address formats, why not expand your expertise even further? Explore our detailed guides for related countries and territories to see how their address formats and examples vary.
Visit the global address formats page or Oceania/Australia address formats page for more information on all the other countries and territories we cover. You can also read or read our article about international address verification to learn more.
*Data updated as of April 15, 2025

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