The Hammond Post Office is located in the state of Illinois within Piatt County. This location serves 769 Hammond residents with a median income of $46,765. It's estimated that approximately 1,227 packages pass through this post office each year.
The Hammond Post Office is located in the state of Illinois within Piatt County. This location serves 769 Hammond residents with a median income of $46,765. It's estimated that approximately 1,227 packages pass through this post office each year.