Post Offices in Island County, Washington

There are 7 Post Offices in Island County, Washington, serving a population of 80,323 people in an area of 209 square miles. There is 1 Post Office per 11,474 people, and 1 Post Office per 29 square miles.

In Washington, Island County is ranked 27th of 39 counties in Post Offices per capita, and 3rd of 39 counties in Post Offices per square mile.

List of Island County Post Offices

Find Island County, Washington post offices and USPS mailing boxes.


Clinton Post Office 4801 Deer Lake Road Clinton, WA

Coupeville Post Office 201 Northwest Coveland Street Coupeville, WA

Freeland Post Office 1619 East Main Street Freeland, WA

Greenbank Post Office 25189 Route 525 Greenbank, WA

Langley Post Office 115 Second Street Langley, WA

Oak Harbor Post Office 1155 Southeast City Beach Street Oak Harbor, WA

US Post Office 1080 Lexington Street Oak Harbor, WA

About Island County Post Offices

Island County Post Offices are branch locations of the customer service postal facilities of the United States Postal Service (USPS) in Island County, WA. The USPS is an independent agency of the federal government that provides mail and package delivery services to all states and territories. Island 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:
  • Island County Post Office hours and locations
  • Mail and package delivery services
  • Island County PO Box services
  • Passport applications and renewals
  • Island County Post Office jobs and employment