Genealogy Trails

Welcome to Costilla County
Colorado Genealogy Trails!

Volunteers Dedicated to Free Genealogy
Our goal is to help you track your ancestors through time by transcribing genealogical and historical data and placing it online for the free use of all researchers.

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Founded November 1, 1861
Named for the Costilla River
The county seat is San Luis, the oldest town in Colorado

Costilla County was one of the original 17 counties created by the Territory of Colorado. Although San Miguel was originally desinated the county seat, the county government was moved to San Luis in 1863. The county's original boundaries had the county extend over much of south-central Colorado. Much of the northern portion became part of Saguache County in 1866, and the western portions were folded into Hinsdale and Rio Grande counties in 1874. Costilla County arrived at its modern boundaries in 1913 when Alamosa County was created from its northwest portions (source: wikipedia)


Cities, Towns and Other Communities
Blanca * Fort Garland * San Luis * Chama
Eastdale * Fir * Garcia * Garland City * Jaroso * La Valley * La Veta Pass
Los Fuertes * Mesita * Russell * San Acacio * San Pablo * San Pedro * Viejo San Acacio

Costilla County, Colorado Data


Birth Records


Census Records

County Records

County History

Death Records


Family Bibles

Marriages / Divorces


Miscellaneous Data and Books

Newspaper Items



Wills/Probate Records


March 2018 - Obits were added
November 2017 - Bios - 1 was added
Dec 2014:  Bios: Albert Washington McIntire; History: Costilla County
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Visit the Counties bordering Costilla
Huerfano County - northeast
Las Animas County - east
Colfax County, New Mexico - southeast
Taos County, New Mexico - south
Conejos County - west
Alamosa County - northwest
Visit the Colorado State Page
Visit our National Genealogy Trails Site

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