FREDERICK POST OFFICE 57441

Frederick Post Office Hours


Retail Hours

Monday-Friday 7:30am - 11:30am
Saturday 8:30am - 9:30am
Sunday Closed

Bulk Mail Acceptance Hours

Monday-Friday 8:30am - 11:30am, 1:00pm - 3:45pm
Saturday-Sunday Closed

Monday-Friday 7:30am - 11:30am
Saturday 8:30am - 9:30am
Sunday Closed

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413 Main St
Frederick, SD 57441

The Frederick Post Office is located in the state of South Dakota within Brown County. This location serves 607 Frederick residents with a median income of $44,196. It's estimated that approximately 969 packages pass through this post office each year.

Frederick Post Office Location


Frederick South Dakota Local Links