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County Assessor Property Search , Colorado Department of Property Taxation

Costilla County GIS Property Search

Ronda Lobato


P.O. Box 344
San Luis, CO. 81152

Phone: (719) 937-7670
Fax: (719) 672-3206
eFax: (888) 709-5722

Assessor's Email: assessor@costillacounty.net

Assessor New Office Hours Are:

Monday - Thursday:  7:00am-5:30pm

Friday: 8:00am-4:30pm

The Assessor's Office is open as a courtesy to our taxpayers during the lunch hour. 



This office is responsible for discovering, locating, classifying, and valuing properties.  It is the responsibility of this office to update and maintain accurate property records.  These records include improvements and all improvement characteristics; along with pictures of these improvements.  Records also include land size, location, maps, and transfer history.




Pamela Vigil - Office Manager

Steve Valdez - Transfer Clerk

Kayla Maes- Field Inspector

Thomas Aagon - Field Inspector




(Click on forms)


Declaration Schedules (writeable)

Application for Senior Exemption:

Short Form

Long Form

Instructions for the Long Form


Helpful Links

(Click On Links)

Department of Local Affairs

Colorado Assessors Association

Colorado Assistant Appeals