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Dana J Graning (Postmaster)
dana.j.graning@usps.gov
185 E Main St
Grass Valley, CA 95945
Grass Valley, CA 95945
The Grass Valley Post Office is located in the state of California within Nevada County. This location serves 25,199 Grass Valley residents with a median income of $44,206. It's estimated that approximately 40,220 packages pass through this post office each year.