Post Offices in Monroe County, Florida

There are 12 Post Offices in Monroe County, Florida, serving a population of 76,745 people in an area of 983 square miles. There is 1 Post Office per 6,395 people, and 1 Post Office per 81 square miles.

In Florida, Monroe County is ranked 15th of 67 counties in Post Offices per capita, and 29th of 67 counties in Post Offices per square mile.

List of Monroe County Post Offices

Find Monroe County, Florida post offices and USPS mailing boxes.


Big Pine Key Post Office 29959 Overseas Highway Big Pine Key, FL

Flagler Key West Post Office 2764 North Roosevelt Boulevard Key West, FL

Islamorada Post Office 82801 Overseas Highway Islamorada, FL

Key Colony Beach Post Office 600 West Ocean Drive Key Colony Beach, FL

Key Largo Post Office 100100 Overseas Highway Key Largo, FL

Key West Post Office 400 Whitehead Street Key West, FL

Long Key Post Office 68340 Overseas Highway Layton, FL

Marathon Post Office 5171 Overseas Highway Marathon, FL

Marathon Shores Post Office 11400 Overseas Highway Marathon, FL

Naval Air Station Unit 2 Post Office 4069 Langley Avenue Key West, FL

Summerland Key Post Office 24700 Overseas Highway Summerland Key, FL

Tavernier Post Office 91220 Overseas Highway Tavernier, FL

About Monroe County Post Offices

Monroe County Post Offices are branch locations of the customer service postal facilities of the United States Postal Service (USPS) in Monroe County, FL. The USPS is an independent agency of the federal government that provides mail and package delivery services to all states and territories. Monroe County post offices are supported entirely by revenues generated by their own operations. Operational authority over the USPS lies with a Board of Governors and rate setting authority falls under the Postal Rate Commission.

You may contact the Post Office for questions about:
  • Monroe County Post Office hours and locations
  • Mail and package delivery services
  • Monroe County PO Box services
  • Passport applications and renewals
  • Monroe County Post Office jobs and employment