Place:Costilla, Colorado, United States

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source: Getty Thesaurus of Geographic Names
source: Family History Library Catalog


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Costilla County is the ninth least populous of the 64 counties in the state of Colorado of the United States. The county population was 3,663 at U.S. Census 2000. The county seat is San Luis, the oldest town in Colorado.

Contents

History

the text in this section is copied from an article in Wikipedia

Costilla County was the first area of Colorado to be settled by European-Americans. Hispanic settlers from Taos, New Mexico, officially established San Luis on April 9, 1851. Costilla County was one of the original 17 counties created by the Territory of Colorado on November 1, 1861. The county was named for the Costilla River. Although San Miguel was originally designated 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.

Timeline

Date Event Source
1861 County formed Source:Red Book: American State, County, and Town Sources
1861 Land records recorded Source:Red Book: American State, County, and Town Sources
1863 Marriage records recorded Source:Red Book: American State, County, and Town Sources
1870 First census Source:Population of States and Counties of the United States: 1790-1990
1876 Court records recorded Source:Red Book: American State, County, and Town Sources
1876 Probate records recorded Source:Red Book: American State, County, and Town Sources
1920 No significant boundary changes after this year Source:Population of States and Counties of the United States: 1790-1990

Population History

source: Source:Population of States and Counties of the United States: 1790-1990
Census Year Population
1870 1,779
1880 2,879
1890 3,491
1900 4,632
1910 5,498
1920 5,032
1930 5,779
1940 7,533
1950 6,067
1960 4,219
1970 3,091
1980 3,071
1990 3,190

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