Altona
Census-designated place in Boulder County, Colorado

Altona is an unincorporated community (census-designated place) in Boulder County, Colorado, with 512 residents (2020 Census). It sits at 5,600 ft (1,707 m) above sea level. The nearest town is Lazy Acres, 3.2 miles SW.
- 512residents (2020 Census)
- 5,600 ftelevation · 1,707 m
- 1.7 sq miland area · 4.4 km²
- 304 / sq mipopulation density
- 80304ZIP code
About Altona
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.
Text: Wikipedia · CC BY-SA 4.0
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Living in Altona
- Median household income
- $149,327
- Median home value
- $1,084,000
- Median rent
- $3,501/mo
- Median age
- 47.7
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Map of Altona
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Open in Google Maps ›Altona, CO population
Altona had 512 residents in the 2020 Census.
| 2020 Census | 512 |
|---|---|
| Density | 304 per sq mi (117 per km²) |
Source: U.S. Census Bureau, Decennial Census.
Altona at a glance
| State | Colorado (CO) |
|---|---|
| County | Boulder County |
| Type | Census-designated place |
| Population | 512 (2020) |
| Land area | 1.69 sq mi (4.4 km²) |
| Water area | 0.06 sq mi (0.15 km²) |
| Elevation | 5,600 ft (1,707 m) |
| Coordinates | 40.1219° N, 105.2962° W |
| ZIP code | 80304 |
| Census code (GEOID) | 0801740 |
Sources: U.S. Census Bureau (Gazetteer, ZCTA), USGS GNIS, Wikidata.
Towns near Altona
- Lazy Acres3.2 mi SW
- Glendale4.7 mi SW
- Jamestown5.1 mi W
- Sunshine5.6 mi SW
- Pine Brook Hill5.8 mi S
- Seven Hills6.4 mi S
- Crisman6.8 mi SW
- Lyons7.1 mi N
- Boulder7.1 mi S
- Niwot7.5 mi E
- Bar-K Ranch7.6 mi W
- Valmont7.6 mi SE
Straight-line distance between town centers.
Frequently asked questions about Altona
What county is Altona in?
Altona is in Boulder County, Colorado.
What is the population of Altona, CO?
512 people lived in Altona at the 2020 Census.
What is the ZIP code of Altona, CO?
The ZIP code of Altona is 80304.
What is the elevation of Altona?
5,600 feet (1,707 m) above sea level.
What towns are near Altona?
Lazy Acres (3.2 mi), Glendale (4.7 mi), Jamestown (5.1 mi), Sunshine (5.6 mi), Pine Brook Hill (5.8 mi).
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