William Mathews (Postmaster)
william.j.mathews@usps.gov
103 N Bartlett St
Gilliam, MO 65330
Gilliam, MO 65330
The Gilliam Post Office is located in the state of Missouri within Saline County. This location serves 412 Gilliam residents with a median income of $32,361. It's estimated that approximately 658 packages pass through this post office each year.