Robert Stockdale (Postmaster)
robert.k.stockdale@usps.gov
25189 State Route 525
Greenbank, WA 98253
Greenbank, WA 98253
The Greenbank Post Office is located in the state of Washington within Island County. This location serves 1,837 Greenbank residents with a median income of $49,602. It's estimated that approximately 2,932 packages pass through this post office each year.