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James A Marshall (Postmaster)
james.a.marshall@usps.gov
1326 Elm St
Black Rock, AR 72415
Black Rock, AR 72415
The Black Rock Post Office is located in the state of Arkansas within Lawrence County. This location serves 1,346 Black Rock residents with a median income of $36,583. It's estimated that approximately 2,148 packages pass through this post office each year.