The Declo Post Office is located in the state of Idaho within Cassia County. This location serves 1,951 Declo residents with a median income of $43,889. It's estimated that approximately 3,114 packages pass through this post office each year.
The Declo Post Office is located in the state of Idaho within Cassia County. This location serves 1,951 Declo residents with a median income of $43,889. It's estimated that approximately 3,114 packages pass through this post office each year.