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![MONROE POST OFFICE](/images/post-offices/or/Monroe-or-post-office.png)
590 Main St
Monroe, OR 97456
Monroe, OR 97456
The Monroe Post Office is located in the state of Oregon within Benton County. This location serves 2,985 Monroe residents with a median income of $54,219. It's estimated that approximately 4,764 packages pass through this post office each year.