There are 8 Post Offices in San Juan County, Washington, serving a population of 16,221 people in an area of 174 square miles. There is 1 Post Office per 2,027 people, and 1 Post Office per 21 square miles.
In Washington, San Juan County is ranked 7th of 39 counties in Post Offices per capita, and 2nd of 39 counties in Post Offices per square mile.
Find San Juan County, Washington post offices and USPS mailing boxes.
Deer Harbor Post Office 20 Jack and Jill Place Deer Harbor, WA
Eastsound Post Office 221 A Street Eastsound, WA
Friday Harbor Post Office 220 Blair Avenue Friday Harbor, WA
Lopez Island Post Office 209 Weeks Road Lopez Island, WA
Olga Post Office 7025 Olga Road Olga, WA
Orcas Post Office 121 Killebrew Lake Road Eastsound, WA
Shaw Island Post Office 35 Blind Bay Road Shaw Island, WA
Waldron Post Office 1 S Burn Rd Waldron, WA
San Juan County Post Offices are branch locations of the customer service postal facilities of the United States Postal Service (USPS) in San Juan County, WA. The USPS is an independent agency of the federal government that provides mail and package delivery services to all states and territories. San Juan 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: