Altona, Colorado

Census Designated Place in Colorado, United States

40°07′31″N 105°17′33″W / 40.1253777°N 105.2923721°W / 40.1253777; -105.2923721 (Altona CDP, Colorado)^[1]Country

United StatesState

ColoradoCountyBoulder CountyGovernment

^[2]

• Typeunincorporated communityArea

^[1]

• Total1.743 sq mi (4.515 km²) • Land1.686 sq mi (4.366 km²) • Water0.058 sq mi (0.149 km²)Elevation

^[2]

5,928 ft (1,807 m)Population

(2020)^[3]

• Total512 • Density290/sq mi (110/km²)Time zoneUTC-7 (MST) • Summer (DST)UTC-6 (MDT)ZIP Code^[4]

Boulder 80302

Area codes303 & 720GNIS feature^[2]Altona CDP

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.^[3] The Boulder post office (Zip Code 80302) serves the area.^[4]

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.^[1]

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

References

^ ^a ^b ^c "State of Colorado Census Designated Places - BAS20 - Data as of January 1, 2020". United States Census Bureau. Retrieved December 2, 2020.
^ ^a ^b ^c "U.S. Board on Geographic Names: Domestic Names". United States Geological Survey. Retrieved December 2, 2020.
^ ^a ^b United States Census Bureau. "Altona CDP, Colorado". Retrieved April 18, 2023.
^ ^a ^b "Zip Code 80302 Map and Profile". zipdatamaps.com. 2020. Retrieved December 20, 2020.