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Altona, Colorado
Location of the Altona CDP in Boulder County, Colorado
Location of the Altona CDP in Boulder County, Colorado
Altona, Colorado is located in the United States
Altona, Colorado
Altona, Colorado
Location in the United States
Country  United States
State  Colorado
County Boulder County
Government
 • Type unincorporated community
Area
 • Total 4.515 km2 (1.743 sq mi)
 • Land 4.366 km2 (1.686 sq mi)
 • Water 0.149 km2 (0.058 sq mi)
Elevation
1,808 m (5,932 ft)
Population
 (2020)
 • Total 512
 • Density 113.40/km2 (293.7/sq mi)
Time zone UTC-7 (MST)
 • Summer (DST) UTC-6 (MDT)
ZIP Code
Boulder 80302
Area codes 303 & 720
GNIS feature ID 2583208

Altona is an unincorporated community and a census-designated place (CDP) located in and governed by Boulder County, Colorado, United States. The CDP is a part of the Boulder, CO Metropolitan Statistical Area. The population of the Altona CDP was 512 at the United States Census 2020. The Boulder post office (Zip Code 80302) serves the area.

Geography

Altona is located in central Boulder County where Left Hand Creek exits the Front Range of the Colorado Rockies. U.S. Highway 36 passes through the community, leading north to Lyons and south to Boulder. Altona is 10 miles (16 km) west of Longmont by Nelson Road.

The Altona CDP has an area of 1,116 acres (4.515 km2) including 37 acres (0.149 km2) of water.

Demographics

The United States Census Bureau initially defined the Altona CDP for the United States Census 2010.

Altona CDP, Colorado
Year Pop. ±%
2010 501 —    
2020 512 +2.2%
Source: United States Census Bureau

See also

Kids robot.svg In Spanish: Altona (Colorado) para niños

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