Treasurer/Public Trustee


Lorraine Medina
County Treasurer

P.O. Box 348
San Luis, CO. 81152
Phone: (719) 937-7672
Fax: (719) 672-6024
Hours of Operation:
8:00 a.m. - 4:30 p.m.
Monday - Thursday
Occasional lunch closure


Annette Carino - Deputy Treasurer
Frances Rodriguez - Treas. Clerk/CTD Technician
Louise Segura - Treas. Clerk/Treas. Deed Technician
Abe Valdez - County Treas. Deed Technician
April Vialpando - Treas. Clerk
Mariah Medina - Part-time Treas. Clerk

Use the link to the zeusauction website to register for the tax sale. At you can register for the site and the sale. Please note that you need to register for the website and the auction. Once registered for zeus, you will be able to review the property list and register for the sale.



The office is currently closed to the public due to COVID. 
We are available Monday- Thursday from 8:00 a.m. to 4:30 p.m. to answer phone calls, take payments by phone with debit or credit, although there is a 2.5% fee for the card company we use.

There is also a drop box outside on the left hand side in the main entrance.

We can be reached at 719-937-7672 or by email at

You can also mail your payment to: 
Costilla County Treasurer 
PO Box 348 
San Luis CO 81152 

Interested in property in Costilla County?
Contact Treasurer for information on tax lien sale list!