Cheryl L Pemberton (Postmaster)
cheryl.l.pemberton@usps.gov
755 Adams St
Mason, IL 62443
Mason, IL 62443
The Mason Post Office is located in the state of Illinois within Effingham County. This location serves 1,623 Mason residents with a median income of $52,303. It's estimated that approximately 2,590 packages pass through this post office each year.