The Avon Post Office is located in the state of Illinois within Warren County. This location serves 1,747 Avon residents with a median income of $51,466. It's estimated that approximately 2,788 packages pass through this post office each year.
The Avon Post Office is located in the state of Illinois within Warren County. This location serves 1,747 Avon residents with a median income of $51,466. It's estimated that approximately 2,788 packages pass through this post office each year.