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 501 at the United States Census 2010.[4] The Boulder post office (Zip Code 80302) serves the area.[3]
Altona, Colorado | |
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Census Designated Place | |
![]() Location of the Altona CDP in Boulder County, Colorado | |
![]() ![]() Altona Location of the Altona CDP in the United States. | |
Coordinates: 40°07′31″N 105°17′33″W[1] | |
Country | ![]() |
State | ![]() |
County | Boulder County |
Government | |
• Type | unincorporated community |
Area | |
• Total | 1.743 sq mi (4.515 km2) |
• Land | 1.686 sq mi (4.366 km2) |
• Water | 0.058 sq mi (0.149 km2) |
Elevation | 5,928 ft (1,807 m) |
Population (2010) | |
• Total | 501 |
• Density | 297/sq mi (115/km2) |
Time zone | UTC-7 (MST) |
• Summer (DST) | UTC-6 (MDT) |
ZIP Code[3] | Boulder 80302 |
Area codes | 303 & 720 |
GNIS feature[2] | Altona CDP |
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.[1]
The United States Census Bureau initially defined the Altona CDP for the United States Census 2010.
Year | Pop. | ±% |
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2010 | 501 | — |
2020 | — | |
Source: United States Census Bureau |
Municipalities and communities of Boulder County, Colorado, United States | ||
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County seat: Boulder | ||
Cities |
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Towns | ||
CDPs |
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Unincorporated communities |
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Ghost town |
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Footnotes | ‡This populated place also has portions in an adjacent county or counties | |
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