All Countries
Altadena, CA
Full City Profile · California · Los Angeles County County
3.1
/5.0
B
Good
41,921
Population
4,949/sq mi density
$129,123
Median Income
$65,192 per capita
$1,073,500
Home Value
$1,094,611 Zillow
$2,250
Median Rent
33.0% income on rent
66°F
Avg Temperature
326 sunny days/yr
281
Violent Crime/100K
2,471 property/100K
B
Overall
3.1 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.6 / 5.0
$129,123 median income, 4.7% unemployment
D
Affordability
2.0 / 5.0
$1,073,500 home value, $2,250/mo rent
F
Safety
1.0 / 5.0
281 violent crimes/100K
A+
Education
5.0 / 5.0
52.7% bachelor's degree or higher
Change Over Time (2013–2023)
Population Change
-6.9%
45,015 → 41,921
over 10 years
Annual Pop. Growth
-0.71%
Compound annual growth rate
Median Income Change
+55.8%
$82,895 → $129,123
nominal, not inflation-adjusted
Annual Income Growth
+4.53%
Compound annual growth rate
Population Over Time
Total population for Altadena across each available Census ACS release.
Median Household Income Over Time
Median household income reported by U.S. Census ACS. Values are nominal (not adjusted for inflation).
Projected 2030
Simple projections extrapolating the 2013–2023 compound annual growth rate forward. These are mathematical extensions of recent trends, not forecasts — real outcomes depend on migration, policy and economic shifts.
Projected Population 2030
39,881
-2,040 from 2023 (41,921)
Projected Median Income 2030
$176,072
+$46,949 from 2023 ($129,123)
Year-by-Year Detail
| Year | Population | YoY % | Median Income | YoY % |
|---|---|---|---|---|
| 2013 | 45,015 | — | $82,895 | — |
| 2015 | 44,621 | -0.9% | $86,050 | +3.8% |
| 2017 | 45,236 | +1.4% | $88,774 | +3.2% |
| 2019 | 44,850 | -0.9% | $98,693 | +11.2% |
| 2021 | 43,384 | -3.3% | $109,743 | +11.2% |
| 2023 | 41,921 | -3.4% | $129,123 | +17.7% |
Source: U.S. Census ACS 5-Year Estimates (Data Commons). Home value and rent are not yet available historically.