The Nilwood Post Office is located in the state of Illinois within Macoupin County. This location serves 244 Nilwood residents with a median income of $44,375. It's estimated that approximately 389 packages pass through this post office each year.
The Nilwood Post Office is located in the state of Illinois within Macoupin County. This location serves 244 Nilwood residents with a median income of $44,375. It's estimated that approximately 389 packages pass through this post office each year.