Marolyn G Williams (Postmaster)
marolyn.g.williams@usps.gov
170 Main St
Grimes, CA 95950
Grimes, CA 95950
The Grimes Post Office is located in the state of California within Colusa County. This location serves 569 Grimes residents with a median income of $33,050. It's estimated that approximately 908 packages pass through this post office each year.