PR State Abbreviation – Puerto Rico

In the azure waters of the Caribbean lies Puerto Rico, a U.S. territory brimming with rich culture, diverse ecology, and a storied history. Known for its stunning beaches, vibrant music, and delectable cuisine, Puerto Rico is also recognized by the two-letter abbreviation “PR.”

This seemingly simple pair of letters plays a crucial role in various sectors, from postal services to official documentation, ensuring clarity and uniformity in communication and administration.

This blog post aims to unfold the layers behind the Puerto Rico state abbreviation, offering insights into its origin, significance, and common misconceptions.

History of Puerto Rico

Puerto Rico’s history is a tapestry of indigenous heritage, Spanish colonization, and a unique relationship with the United States. It became a U.S. territory following the Spanish-American War in 1898, and its residents have been U.S. citizens since 1917.

The History of Puerto Rico’s State Abbreviation

You’ll be surprised to learn that Puerto Rico’s state abbreviation has gone through several changes over the years.

Initially, Puerto Rico was given the abbreviation ‘P.R.’ when it became a territory of the United States in 1898. However, in 1931, the abbreviation was changed to ‘P.R.’ to reflect Puerto Rico’s new status as a commonwealth. This change was made to differentiate Puerto Rico from other states in the United States.

Then, in 1987, the abbreviation was updated once again to ‘PR’ to align with the standard two-letter abbreviations used for all states. This change was made to simplify and streamline the state abbreviation system.

Puerto Rico State Abbreviation

The abbreviation for Puerto Rico is “PR.” This abbreviation is used in various contexts, including postal addresses, official government documentation, and more. When sending mail to Puerto Rico, it’s essential to use this abbreviation to ensure the mail is delivered to the correct location.

The Importance of ‘PR’ as Puerto Rico’s Postal Code

PR’s postal code is essential for efficient mail delivery and ensuring accurate addressing within Puerto Rico. The two-letter code ‘PR’ serves as Puerto Rico’s unique identifier in the postal system. When you use ‘PR’ as the state abbreviation in your address, it helps the postal service to route your mail correctly and quickly. Without this code, it would be challenging for mail carriers to identify and sort mail meant for Puerto Rico.

Additionally, using ‘PR’ as the postal code ensures that your mail doesn’t get confused with other states or territories with similar names or abbreviations. It streamlines the process and reduces the chances of mail being misdelivered or delayed.


So, now you know the significance of Puerto Rico’s state abbreviation, ‘PR.’ It serves as the unique postal code for the island, distinguishing it from other states.

Despite some misconceptions, Puerto Rico’s abbreviation doesn’t indicate that it’s a state in the traditional sense. The debate surrounding its status continues, highlighting the complexities of Puerto Rico’s relationship with the United States.