The Seaton Post Office is located in the state of Illinois within Mercer County. This location serves 407 Seaton residents with a median income of $55,893. It's estimated that approximately 650 packages pass through this post office each year.
The Seaton Post Office is located in the state of Illinois within Mercer County. This location serves 407 Seaton residents with a median income of $55,893. It's estimated that approximately 650 packages pass through this post office each year.