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Teresa Thomas (Postmaster)
teresa.j.thomas@usps.gov
24176 State Route 161
Irwin, OH 43029
Irwin, OH 43029
The Irwin Post Office is located in the state of Ohio within Union County. This location serves 664 Irwin residents with a median income of $34,917. It's estimated that approximately 1,060 packages pass through this post office each year.