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         The Costilla County
         COGenWeb Project


County Seat - San Luis (Since 1867)
(1861 - 1867 San Miguel)

Population - 3,663

Costilla County 1861  Costilla County 1866  Costilla County 1874  Costilla County 1913

Welcome to Costilla County, Colorado.

Costilla County is one of the original Colorado Counties. Parts were split off to form 1866's Saguache County, 1874's Rio Grande County and in 1913 to form Alamosa County.

Mineral Colorado GenWeb and the other San Luis Valley GenWeb county pages Alamosa , Conejos, Costilla , Mineral, Rio Grande & Saguache are looking for contributors and other volunteers to help with expanding the resources of the San Luis Valley Genealogy Web project (part of the Colorado GenWeb and USGenWeb) so other researchers can find and make use of them. If you have any information or know of any links you would like to see on this site let me know. Especially we would like volunteers to help with the grave stone transcription and photo project, Colorado Grave Stone photo Project.

The town of San Luis turned 150 years old in 2001. If you would like more information, call the San Luis Visitors Center at (719) 672-3002. Or click on San Luis.

Holy Family Catholic Church

Archives for Costilla County - where to find archived records. Lots of good information
Bibliography/Books - a suggested reading list of local histories
Birth Index - Index of births that have been submitted
Cemeteries and Funeral Homes- a list of cemeteries and funeral home locations
1920 Census images - Costilla County
GenConnectBoards- Post, View & Search - Queries, Obits, Bible Records, Biographies, Deeds, Pensions & Wills. Search Engine Added
History of Costilla County - a helpful timeline
Links - where to go from here. Lots of wonderful links with searchable indexes & databases
Lookups and Volunteers - Your help is needed, Please volunteer if you can
Maps of Costilla County - a nice variety
Migration Patterns of Costilla County  Add your family here
Marriage Index - Index of marriages that have been submitted
Photographs - If you have any Costilla County photos, please send them in
More Photographs - Lots of very nice black and white pictures of Costilla County
Resources - where to find records or addresses to write for them

The Rootsweb list Coalamos is now being used as the San Luis Valley wide list. This list covers the six counties of the San Luis Valley; Alamosa , Conejos, Costilla , Mineral, Rio Grande & Saguache County. This has been done so researchers can have one list for the San Luis Valley counties. Residents of the valley often lived in more than one county. You may post queries to this list, but PLEASE NOTE: NO query OR surname will be picked up by the County Coordinators for posting to the county pages. If you wish to post a query or surname on the County Pages, please use the RootsWeb Message Boards for that county or contact the coordinator for that county.

The Rootsweb list Cocostill is also available for researchers in Costilla County; this list focuses on Costilla County itself If you would be interested in joining this list, you may do so by sending a message with the word "subscribe", minus the quotes, in the body of the message to:

If you would be interested in joining COCOSTILL list for Costilla County itself, you may do so by sending a message with the word "subscribe", minus the quotes, in the body of the message to:

Search Costilla County -maintained by Rootsweb
Surnames Index- who is researching who
Towns of Costilla County - includes current and ghost towns


Search WWW Search Costilla County CoGenWeb


If you have any comments or suggestions I would love to hear from you.

Volunteers are needed to submit records, help with lookups and transcribe cemeteries.
Please pitch in if you can help.

Costilla County, Colorado - email


Thank you for visiting the COGenWeb Project!
State Coordinator; 
Gail Meyer Kilgore
Assistant State Coordinator:
Colleen Pustola
Colorado GenWeb Site 
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All Content Copyright 1996-2009 COGENWEB 
USGenWeb Project and rights are limited to use on an official USGenWeb Project
This Site Updated: 05 January 2009