Kathy M Anderson (Postmaster)
kathy.m.anderson@usps.gov
111 Costilla Rd
Jaroso, CO 81138
Jaroso, CO 81138
The Jaroso Post Office is located in the state of Colorado within Costilla County. This location serves 56 Jaroso residents with a median income of $18,984. It's estimated that approximately 89 packages pass through this post office each year.