Court directory

# Colorado County Court, Costilla County

## Court information

### Costilla Combined Court

Physical address

304 Main St, San Luis, CO 81152

Mailing address

PO Box 301, San Luis, CO 81152

[Official court website](https://www.coloradojudicial.gov/courts/trial-courts/Costilla-county) Checked Aug 15, 2026

Aliases: CO County Court, Costilla County · County Court, Costilla County

## Assigned Judges

- [Tamara Sullivan Judge](/kyj/judge/tamara-sullivan-co-county-court-judge-domestic-relations-acting-district-court-judge-12th-judicial-district)