Altona, Colorado Demographics & Population 2026
During the 2020–2024 ACS period, Altona, Colorado had a total population of 587, the 272nd largest community in Colorado, with a median household income of $149,327, which is 56% higher than the state average. The poverty rate is 3.9%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Household income is 56% above the state average — one of the wealthiest communities in Colorado.
- An exceptionally low poverty rate of 3.9% — among the lowest in Colorado.
- 75.8% of adults hold a bachelor's degree or higher — top 10% in Colorado.
- Housing affordability is a challenge — homes cost 7.3x the median household income.
- Unemployment rate of 9.2% is notably above the national average.
Altona Quick Facts
How Altona Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 532 | 587 | +10.3% |
| Median household income | $250,000+ | $149,327 | -40.3% |
| Median home value | $1,168,400 | $1,084,000 | -7.2% |
How Altona Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 52 | National average: 61
Education
Educational Attainment (Adults 25+)
Altona Rankings in Colorado
Explore Colorado Rankings
Other Cities in Boulder County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Boulder | 106,433 | $87,493 | 21.4% | $1,039,500 |
| Lafayette | 30,602 | $119,040 | 5.6% | $686,500 |
| Louisville | 20,786 | $147,319 | 4.5% | $883,900 |
| Gunbarrel | 10,051 | $109,407 | 8.8% | $821,000 |
| Niwot | 3,447 | $146,492 | 2.2% | $995,700 |
| Lyons | 1,838 | $122,837 | 11.9% | $845,400 |
| Nederland | 1,655 | $122,917 | 2.7% | $707,100 |
| Allenspark | 825 | $108,056 | 8.2% | $742,900 |
| Lazy Acres | 778 | $147,625 | 17.1% | $1,024,700 |
| Paragon Estates | 667 | $230,268 | 5.0% | $1,617,500 |
Cities Similar to Altona
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Twin Lakes (Lake County) | 615 | $142,601 | $680,200 | 50.2% | 0.5% |
| Coaldale | 538 | N/A | $383,300 | 8.3% | 19.9% |
| La Jara | 522 | N/A | $141,700 | 25.5% | 24.9% |
| Grand View Estates | 567 | $180,625 | $901,000 | 54.5% | 4.2% |
| Mountain View | 609 | $106,875 | $596,800 | 61.1% | 11.7% |
A note before these figures: with a population of 587, Altona's ACS estimates come from a small number of survey responses and carry wide margins of error. Individual percentages below — particularly rates that round to 0% or 100% — are approximations, not precise measurements. See data.census.gov for the published margins of error.
Population Overview
Altona is a small community located in Colorado, within Boulder County. The total population is 587. It ranks as the 272nd most populous out of 472 Census-designated places in Colorado.
Age Demographics
The median age in Altona is 47.7 years. This is 27% higher than the state median of 37.7 years. Only 14.0% of residents are under 18, indicating fewer families with children. 13.5% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.
Economy, Income & Housing
The median household income in Altona is $149,327. This is 56% higher than the state median of $95,470. It is also 85% higher than the national median of $80,734. The poverty rate stands at 3.9%. This is 58% lower than the state poverty rate of 9.4%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The unemployment rate is 9.2%. This is 99% higher than the state rate of 4.6%. The median home value is $1,084,000. Housing costs are 101% higher than the state median of $539,400. The home-value-to-income ratio of 7.3x suggests that housing affordability is a significant concern for many residents. 80.7% of occupied housing units are owner-occupied. This homeownership rate is 22% higher than the state average of 66.2%.
Race & Ethnicity
Altona has a predominantly White (non-Hispanic) population, comprising 93.7% of all residents. Hispanic or Latino residents account for 2.0%. The Hispanic or Latino population (2.0%) is well below the state average of 22.5%.
Education
75.8% of residents aged 25 and older hold a bachelor's degree or higher. This places Altona in the top 10% of all cities in the state for educational attainment. This is 66% higher than the state rate of 45.7%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 97.2%. Notably, 20.3% of adults hold a graduate or professional degree, indicating a highly educated workforce.
Data Sources & Methodology
All demographic data for Altona, Colorado is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Colorado state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 472 Census-designated places in Colorado. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
Free data download: Get all Colorado city and county demographics as CSV. Download Cities CSV | Download Counties CSV
Frequently Asked Questions
What is the population of Altona, Colorado?
Altona, Colorado has a population of 587 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Altona, CO?
The median household income in Altona is $149,327, which is 85% higher than the national median of $80,734.
What is the poverty rate in Altona, CO?
The poverty rate in Altona is 3.9%. This means approximately 23 residents live below the federal poverty line.
What is the racial makeup of Altona, Colorado?
Altona's population is 93.7% White, 0.0% Black, 2.0% Hispanic/Latino, and 0.0% Asian.
What is the median home value in Altona, CO?
The median home value in Altona is $1,084,000. The home-value-to-income ratio is 7.3x.
How educated is Altona, Colorado?
75.8% of adults (25+) in Altona hold a bachelor's degree or higher, and 20.3% hold a graduate or professional degree.