Roch Westendorf (Postmaster)
roch.j.westendorf@usps.gov
201 S Main St
Dieterich, IL 62424
Dieterich, IL 62424
The Dieterich Post Office is located in the state of Illinois within Effingham County. This location serves 2,092 Dieterich residents with a median income of $50,000. It's estimated that approximately 3,339 packages pass through this post office each year.