Helen F Leffler (Postmaster)
helen.f.leffler@usps.gov
495 S Broadway St
Coal City, IL 60416
Coal City, IL 60416
The Coal City Post Office is located in the state of Illinois within Grundy County. This location serves 9,397 Coal City residents with a median income of $59,717. It's estimated that approximately 14,999 packages pass through this post office each year.