CDP in Boulder County, Colorado · 1.7 sq mi · 320 people per sq mi
About 540 people live in Altona. The typical household earns $149,327, and the median resident is 47.7 years old.
2026 projection
From 479 in 2020
Poverty rate 3.92%
Men 60.2 · Women 46.1
2011–2026
539
2026 projection
12.5% since 2020 (increase)
Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
2011–2026
539
2026 projection
12.5% since 2020 (increase)
Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
| 2026 | 539 | +2 | 0.37% |
|---|---|---|---|
| 2025 | 537 | +5 | 0.47% |
| 2023 | 532 | +1 | 0.19% |
| 2022 | 531 | -26 | 4.67% |
| 2021 | 557 | +78 | 16.28% |
| 2020 | 479 | -34 | 6.63% |
| 2019 | 513 | +71 | 16.06% |
| 2018 | 442 | +57 | 14.81% |
| 2017 | 385 | -1 | 0.26% |
| 2016 | 386 | -164 | 29.82% |
Showing 10 of 15 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 6 people).
Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002
Half of households earn more, half earn less
About 1 in 26 residents
46% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 46% | 49% | 44% |
| Never married | 33% | 24% | 41% |
| Divorced | 13% | 16% | 10% |
| Widowed | 8% | 12% | 5% |
| Separated | 0% | 0% | 0% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
10 sources, all from the U.S. Census Bureau