Jim Farleigh (Postmaster)
james.e.farleigh@usps.gov
220 E Delaware St
Fairfield, IL 62837
Fairfield, IL 62837
The Fairfield Post Office is located in the state of Illinois within Wayne County. This location serves 8,867 Fairfield residents with a median income of $38,051. It's estimated that approximately 14,153 packages pass through this post office each year.