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Grass Valley Post Office Hours

Retail Hours

Contact Numbers:

Phone: 541-333-2305
Monday-Friday 9:30am - 1:30pm
Saturday-Sunday Closed

Bulk Mail Acceptance Hours

Monday-Friday 8:00am - 12:00pm, 1:00pm - 5:00pm
Saturday-Sunday Closed

Monday-Friday 9:30am - 1:30pm
Saturday 8:30am - 10:30am
Sunday Closed

Lobby Hours

Monday-Sunday 12:01am - 11:59pm

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← Back to Sherman County

114 N Mill St
Grass Valley, OR 97029

The Grass Valley Post Office is located in the state of Oregon within Sherman County. This location serves 285 Grass Valley residents with a median income of $80,250. It's estimated that approximately 455 packages pass through this post office each year.

Grass Valley Post Office Location 97029

Grass Valley Oregon Local Links

Post Offices Near Grass Valley by ZIP Code