Primary sources for Altadena, CA
- Census Bureau profile of Altadena, CA, ACS data
- EIA-861 utility data for Altadena, CA, prices
- DOE LEAD tool for Altadena, CA, energy burden
- NOAA storms and FEMA flood claims for Altadena, CA
Editor: Katerine G., Editor & Data Researcher · Research & publishing: Electric Consumer Editorial Team · Data retrieved · Sources named on this page: EIA-861, EPA eGRID, Census ACS, DOE LEAD, NOAA · How we got these numbers · Report an error
Altadena, CA ranks 1st of 263 California cities for the oldest homes (median year built 1945). Altadena, California has 41,921 residents in 15,018 households; 19.4% heat with electricity.
Altadena is a census-designated place, a Census Bureau statistical area and not an incorporated city; the figures describe Altadena as the Bureau draws it.
In Altadena, CA, community choice aggregators may change the generation charge. See how to compare suppliers.
Los Angeles County, with Altadena marked
Altadena, CA: 14,068 of 15,744 homes were built before 1980 and 775 in 2000 or later. Altadena, CA has 13,771 detached houses, 565 homes in 5+ unit buildings and 0 mobile homes.
% of homes by decade built, Altadena, CA
| Altadena, CA | Value | County | Gap | Rank (1 = highest) |
|---|---|---|---|---|
| Altadena, CA, median year built | 1945 | 1965 | -20 years | 263 of 263 |
| Altadena, CA, built before 1980 | 89.4% | 71.1% | +18.2 points | 1 of 263 |
| Altadena, CA, built 2000 or later | 4.9% | 10.6% | -5.7 points | 245 of 263 |
| Altadena, CA, detached houses | 87.5% | 47.6% | +39.8 points | 10 of 263 |
| Altadena, CA, apartments in 5+ unit buildings | 3.6% | 35.7% | -32.1 points | 259 of 263 |
| Altadena, CA, mobile homes | 0.0% | 1.7% | -1.7 points | 261 of 263 |
| Altadena, CA, renter households | 21.7% | 53.9% | -32.2 points | 249 of 263 |
| Altadena, CA, median home value | $1,073,500 | $783,300 | +$290,200 | 43 of 263 |
| Altadena, CA, median gross rent a month | $2,250 | $1,893 | +$357 | 87 of 263 |
| Altadena, CA, people per household | 2.73 | 2.85 | -0.12 | 185 of 263 |
Los Angeles County lists 7 utilities for Altadena, CA (41,921 residents): homes pay 14.55 to 33.81 cents per kWh, about $73 to $170 a month at 503 kWh, 0.7% to 1.6% of the $129,123 Altadena median income. Los Angeles County page.
Southern California Edison Co charged Altadena homes 16.50 ¢/kWh in 2015. Altadena: 28.25 ¢ in 2024, 71% up. Altadena: against 88% up for the California average.
Altadena: a 503 kWh month at that price. Altadena: $83 in 2015, $142 in 2024. Altadena: $1,706 a year, 1.3% of the $129,123 median income.
| Year | Southern California Edison Co, Altadena | Altadena: Gap to California average | Altadena: Gap to U.S. average |
|---|---|---|---|
| 2015, Altadena | 16.50 | -0.49 | +3.85 |
| 2016, Altadena | 15.84 | -1.55 | +3.29 |
| 2017, Altadena | 16.46 | -1.85 | +3.57 |
| 2018, Altadena | 16.09 | -2.75 | +3.22 |
| 2019, Altadena | 15.18 | -3.97 | +2.17 |
| 2020, Altadena | 16.68 | -3.77 | +3.53 |
| 2021, Altadena | 19.95 | -2.87 | +6.29 |
| 2022, Altadena | 22.59 | -3.25 | +7.55 |
| 2023, Altadena | 27.44 | -2.07 | +11.44 |
| 2024, Altadena | 28.25 | -3.72 | +11.77 |
Altadena, CA: EIA-861 home prices, 2015 to 2024, not a Altadena, CA price.
CSVIn Altadena, CA, 1,702 of 2,980 renter households pay 30% or more of income in rent; 2,474 households moved in since 2018 and 5,389 before 2000, so electric accounts turn over slowly. Of 20,139 workers in Altadena, CA, 4,722 work from home, 13,158 drive alone, 297 ride transit and 223 walk. In Altadena, CA, 542 households own no vehicle and 9,838 own two or more; home EV charging depends on that. 3,088 residents of Altadena, CA live below the poverty line, and the median age is 46.2. In Altadena, CA, 2,022 of 15,018 households earn under $35,000, 2,505 $35,000-$75,000, 3,925 $75,000-$150,000 and 6,566 $150,000 or more. Altadena, CA homes: 10,462 have 3+ bedrooms, 1,093 none or one, median 5.8 rooms.
| Altadena, CA | Value | Rank in California (1 = highest) |
|---|---|---|
| Altadena, CA, households under $35,000 | 13.5% | 176 of 263 |
| Altadena, CA, households $150,000 or more | 43.7% | 50 of 263 |
| Altadena, CA, residents below poverty | 7.4% | 195 of 263 |
| Altadena, CA, median age | 46.2 | 12 of 263 |
| Altadena, CA, homes with 3+ bedrooms | 66.5% | 98 of 263 |
| Altadena, CA, households without a vehicle | 3.6% | 205 of 263 |
| Altadena, CA, households with 2+ vehicles | 65.5% | 154 of 263 |
| Altadena, CA, workers at home | 23.4% | 35 of 263 |
| Altadena, CA, cost-burdened renters | 57.1% | 113 of 263 |
| Altadena, CA, moved in since 2018 | 16.5% | 261 of 263 |
| Altadena, CA, moved in before 2000 | 35.9% | 4 of 263 |
Altadena, CA, NWS reports within 15 miles of the center, 2015 to 2025: 7 wind and 2 tornado, 21.5 per 100,000 residents of 41,921. Top gust near Altadena, CA: 68 knots, 78 mph. Damage near Altadena, CA: $1K.
wind and tornado reports, Altadena, CA
| Altadena, CA | Wind | Tornado | Total |
|---|---|---|---|
| Altadena, CA, 2016 | 2 | 0 | 2 |
| Altadena, CA, 2021 | 1 | 0 | 1 |
| Altadena, CA, 2023 | 0 | 1 | 1 |
| Altadena, CA, 2024 | 1 | 0 | 1 |
| Altadena, CA, 2025 | 3 | 1 | 4 |
Altadena, CA: 15,018 households at $1,344 a year per home for electricity (Los Angeles County average, DOE LEAD) come to about $20.2 million, an estimate; all home energy is $1,894 a year per household.
| Group in Altadena, CA | Households | Power per home | Power bill of the group | Share of Altadena, CA median income |
|---|---|---|---|---|
| Altadena, CA, all households | 15,018 | $1,344 | $20.2 million | 1.04% |
| Altadena, CA, homeowners | 11,756 | $1,848 | $21.7 million | 1.43% |
| Altadena, CA, renters | 3,262 | $913 | $3.0 million | 0.71% |
Altadena is in Los Angeles County, CA. Altadena: degree days are county values.
Altadena: 2,345 heating degree days a year. Altadena: 1,325 cooling degree days a year.
| Altadena | County value |
|---|---|
| Altadena, heating degree days, 1991-2020 normal | 2,345 |
| Altadena, heating degree days, 2016-2025 mean | 2,222 |
| Altadena, cooling degree days, 1991-2020 normal | 1,325 |
| Altadena, cooling degree days, 2016-2025 mean | 1,483 |
| Altadena, homes heated with electricity, ACS 2019-2023 | 28.5% |
Altadena: NOAA nClimDiv 7 Oct 2026; ACS B25040.
Household income in Altadena, CA is $129,123; 11,756 of its 15,018 households own. Altadena, CA counts 41,921 residents in 15,018 households, on 8.5 square miles. 2,917 of the 15,018 occupied homes in Altadena, CA heat with electricity.
Altadena, CA has 15,744 housing units, 726 of them vacant or seasonal. Altadena, CA ranks 12th of 263 California cities for the oldest residents (median age 46.2). Altadena, CA ranks 15th of 263 California cities for the lowest share of renters (22%).
Altadena, CA ranks 35th of 263 California cities for people working from home (23.4% of workers).
| City near Altadena, CA | Distance from Altadena | Residents | Median income | Median year built | Median home value | Storm reports within 15 miles | Work from home |
|---|---|---|---|---|---|---|---|
| Altadena, CA (this page) | 0 mi | 41,921 | $129,123 | 1945 | $1,073,500 | 9 | 23.4% |
| Pasadena, CA | 2.2 mi south | 136,462 (+94,541) | $103,778 (-$25,345) | 1960 (+15 yr) | $1,045,000 (-$28,500) | 8 (-1) | 23.6% (+0.2 pts) |
| Glendale, CA | 6.3 mi west | 192,270 (+150,349) | $84,262 (-$44,861) | 1965 (+20 yr) | $1,043,900 (-$29,600) | 7 (-2) | 18.7% (-4.8 pts) |
| Arcadia, CA | 7.0 mi southeast | 55,550 (+13,629) | $116,142 (-$12,981) | 1965 (+20 yr) | $1,336,500 (+$263,000) | 8 (-1) | 21.2% (-2.3 pts) |
| San Gabriel, CA | 7.1 mi south | 38,764 (-3,157) | $87,592 (-$41,531) | 1956 (+11 yr) | $899,000 (-$174,500) | 7 (-2) | 11.9% (-11.5 pts) |
| Alhambra, CA | 7.5 mi south | 81,483 (+39,562) | $85,189 (-$43,934) | 1960 (+15 yr) | $812,700 (-$260,800) | 9 (+0) | 12.3% (-11.1 pts) |
| ZIP area touching Altadena, CA | Share of the ZIP's land inside Altadena | Share of Altadena's land in the ZIP |
|---|---|---|
| 91001 (Altadena, CA) | 93.6% | 91.3% |
| 91104 (Altadena, CA) | 17.8% | 7.9% |
Census 2020 ZCTA to place land-area overlap. Look up any ZIP.
California: home prices since 2001, planned plants.
Altadena, CA has no price of its own; its 41,921 residents are served by one of 7 utilities, and a 503 kWh month costs $73 to $170. In Altadena, CA, community choice aggregators may change the generation charge.
Altadena, CA: rank 213 of 263 by its 41,921 residents, rank 54 of 263 by $129,123 median income.
Altadena, CA: 2,917 of 15,018 occupied homes, 19.4%; Los Angeles County 28.5%.
At 503 kWh a month, 0.7% to 1.6% of the $129,123 median income in Altadena, CA.
9 NWS wind and tornado reports within 15 miles of the center of Altadena, CA, 2015 to 2025, 21.5 per 100,000 residents.
Altadena, CA: median home built 1945; 14,068 of 15,744 homes (89.4%) predate 1980, 13,771 are detached and 565 sit in buildings of 5+ units.
1,702 of 2,980 renter households pay 30% or more of income in rent.
4,722 of 20,139 workers.
542 households; 9,838 have two or more.