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Alamosa County, Colorado
Alamosa County Courthouse.JPG
Alamosa County Courthouse
Map of Colorado highlighting Alamosa County
Location in the state of Colorado
Map of the U.S. highlighting Colorado
Colorado's location in the U.S.
Founded March 8, 1913
Named for Spanish language word for a grove of cottonwood trees
Seat Alamosa
Largest city Alamosa
Area
 - Total
 - Land
 - Water

723 sq mi (1,873 km²)
723 sq mi (1,873 km²)
0.7 sq mi (2 km²), 0.1%
Population
 - (2020)
 - Density

16,376[1]
23/sq mi (9/km²)
Congressional district 3rd
Time zone Mountain: UTC-7/-6
Website www.alamosacounty.org

Alamosa County is a county located in the U.S. state of Colorado. As of the 2020 census, the population was 16,376.[1] The county seat is Alamosa.[2] The county name is the Spanish language word for a "grove of cottonwood trees."

History[]

Alamosa County was created by the Colorado legislature on March 8, 1913, out of northwestern Costilla County.

Geography[]

Alamosa County, Colorado

According to the U.S. Census Bureau, the county has a total area of 723 square miles (1,870 km2), of which 723 square miles (1,870 km2) is land and 0.7 square miles (1.8 km2) (0.1%) is water.[3]

Adjacent counties[]

Major Highways[]

  • US 160.svg U.S. Highway 160
  • US 285.svg U.S. Highway 285
  • Colorado 17.svg State Highway 17
  • Colorado 150.svg State Highway 150
  • Colorado 368.svg State Highway 368
  • Colorado 370.svg State Highway 370
  • Colorado 371.svg State Highway 371

National protected area[]

  • Great Sand Dunes National Park and Preserve

Other protected areas[]

  • Alamosa National Wildlife Refuge
  • Great Sand Dunes Wilderness
  • Monte Vista National Wildlife Refuge
  • Rio Grande National Forest
  • San Luis State Park
  • Sangre de Cristo Wilderness

Scenic trails[]

  • Los Caminos Antiguos Scenic and Historic Byway
  • Old Spanish National Historic Trail

Transportation[]

Alamosa is served by San Luis Valley Regional Airport. The only commercial service is to Denver.

Demographics[]

Historical populations
Census Pop.
1920 5,148
1930 8,602 67.1%
1940 10,484 21.9%
1950 10,531 0.4%
1960 10,000 −5.0%
1970 11,422 14.2%
1980 11,799 3.3%
1990 13,617 15.4%
2000 14,966 9.9%
2010 15,445 3.2%
U.S. Decennial Census[4]
1790-1960[5] 1900-1990[6]
1990-2000[7] 2010-2020[1]

At the 2000 census there were 14,966 people, 5,467 households, and 3,651 families living in the county. The population density was 21 people per square mile (8/km2). There were 6,088 housing units at an average density of 8 per square mile (3/km2). The racial makeup of the county was 71.19% White, 0.97% Black or African American, 2.34% Native American, 0.82% Asian, 0.19% Pacific Islander, 20.34% from other races, and 4.16% from two or more races. 41.41% of the population were Hispanic or Latino of any race.[8] Of the 5,467 households 35.30% had children under the age of 18 living with them, 50.50% were married couples living together, 11.70% had a female householder with no husband present, and 33.20% were non-families. 27.30% of households were one person and 8.70% were one person aged 65 or older. The average household size was 2.56 and the average family size was 3.14.

The age distribution was 27.20% under the age of 18, 15.90% from 18 to 24, 26.70% from 25 to 44, 20.60% from 45 to 64, and 9.60% 65 or older. The median age was 31 years. For every 100 females there were 99.00 males. For every 100 females age 18 and over, there were 95.30 males.

The median household income was $29,447 and the median family income was $38,389. Males had a median income of $27,733 versus $22,806 for females. The per capita income for the county was $15,037. About 15.60% of families and 21.30% of the population were below the poverty line, including 27.40% of those under age 18 and 13.90% of those age 65 or over.

In 2000, the largest denominational groups were Catholics (with 5,716 members) and Evangelical Protestants (with 1,755 members).[9] The largest religious bodies were the Catholic Church (with 5,716 adherents) and The Church of Jesus Christ of Latter-day Saints (with 1,155 adherents).[9]

Politics[]

United States presidential election results for Alamosa County, Colorado[10]
Year Republican Democratic Third party
No.  % No.  % No.  %
2020 3,813 48.83% 3,759 48.14% 236 3.02%
2016 3,046 43.90% 3,189 45.96% 704 10.15%
2012 2,705 40.28% 3,811 56.75% 199 2.96%
2008 2,635 41.92% 3,521 56.01% 130 2.07%
2004 3,179 50.63% 3,017 48.05% 83 1.32%
2000 2,857 50.49% 2,455 43.38% 347 6.13%
1996 2,038 41.23% 2,330 47.14% 575 11.63%
1992 1,572 34.05% 1,928 41.76% 1,117 24.19%
1988 2,567 53.70% 2,146 44.90% 67 1.40%
1984 2,953 62.68% 1,720 36.51% 38 0.81%
1980 2,601 53.87% 1,821 37.72% 406 8.41%
1976 2,599 53.51% 2,052 42.25% 206 4.24%
1972 2,916 62.51% 1,540 33.01% 209 4.48%
1968 2,277 55.00% 1,574 38.02% 289 6.98%
1964 1,488 37.42% 2,481 62.40% 7 0.18%
1960 2,271 55.58% 1,811 44.32% 4 0.10%
1956 2,442 62.33% 1,465 37.39% 11 0.28%
1952 2,728 62.13% 1,626 37.03% 37 0.84%
1948 1,950 44.58% 2,395 54.76% 29 0.66%
1944 1,933 51.56% 1,806 48.17% 10 0.27%
1940 2,243 47.39% 2,467 52.12% 23 0.49%
1936 1,188 29.71% 2,754 68.87% 57 1.43%
1932 1,306 36.96% 2,141 60.58% 87 2.46%
1928 1,759 58.23% 1,239 41.01% 23 0.76%
1924 1,009 40.59% 625 25.14% 852 34.27%
1920 1,081 51.87% 949 45.54% 54 2.59%
1916 488 26.15% 1,308 70.10% 70 3.75%



Alamosa County is a competitive swing county, voting for the winning Presidential candidate in every election since its formation except 1944, 1960, 1976, 2016, and 2020. In the 2016 election, Donald Trump – who captured several previously solidly Democratic counties in southern Colorado – became the first Republican to win the presidency without carrying the county since it was created before the 1916 election. Trump flipped the county in 2020, the only one in Colorado, and one of only fifteen nationally, which he turned from blue to red that year.[lower-alpha 1]

Communities[]

City[]

  • Alamosa

Town[]

  • Hooper

Unincorporated communities[]

License plate code[]

Alamosa County has used the following county codes on Colorado license plates issued to passenger vehicles in the county: XE-XG and EAA-ABD.[11]

See also[]

Geography
North America
Colorado
Mountains
  • Outline of Colorado
  • Index of Colorado-related articles
  • Colorado census statistical areas
  • Colorado counties
  • National Register of Historic Places listings in Alamosa County, Colorado

Notes[]

References[]

External links[]

Template:Alamosa County, Colorado

Coordinates: 37°34′N 105°47′W / 37.57, -105.78

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