The San Jose Post Office is located in the state of Illinois within Mason County. This location serves 907 San Jose residents with a median income of $51,667. It's estimated that approximately 1,448 packages pass through this post office each year.
The San Jose Post Office is located in the state of Illinois within Mason County. This location serves 907 San Jose residents with a median income of $51,667. It's estimated that approximately 1,448 packages pass through this post office each year.