| ZIP Code | 91001 |
|---|---|
| City | Altadena |
| State | California (CA) |
| County | Los Angeles County |
| Area Code | 323/626/738 |
| Elevation | 1,500 ft |
| Latitude | 34.194489 |
|---|---|
| Longitude | -118.138263 |
| Timezone | Los Angeles (DST) |
| FIPS | 06037 |
| ZIP Type | Standard |
| Status | Active |
Race & Ethnicity
Age Breakdown
Key Indicators
| Median Age | 46.1 yrs ↑ 4% since 2019 |
|---|---|
| Avg Household Size | 2.81 |
| Below Poverty | 7.1% ▼ 29% below avg |
| College Grads | 62.2% ▲ 60% above avg |
| Unemployment | 8.1% ▲ 65% above avg |
| No HS Diploma | 392 (1.6%) |
| HS Graduate | 4,040 (16.2%) |
| Some College | 1,206 (4.8%) |
| Associates | 3,793 (15.2%) |
| Bachelors | 2,451 (9.8%) |
| Graduate Degree | 13,056 (52.4%) |
Education
Housing Tenure
Home Value Distribution
Financials
| Median HH Income | $133,840 ▲ 75% above avg ↑ 32% since 2019 |
|---|---|
| Median Home Value | $1,085,000 ▲ 289% above avg ↑ 45% since 2019 |
| Home/Income Ratio | 8.1x (nat avg ~3.5x) |
| Median Rent | $2,298/mo ↑ 33% since 2019 |
| Total Units | 13,335 |
| Vacant Units | 611 |
| Avg HH Size | 2.81 |
Income Distribution
How People Get to Work
Commute Time
Year Built
Summary
| Total Units | 13,335 |
|---|---|
| Vacant | 611 |
| Owner Occupied | 80.5% |
| Renter Occupied | 19.5% |
| Avg HH Size | 2.81 |
ZIP code 91001 is located in Altadena, California, within Los Angeles County. With a population of 36,402, this is a highly populated ZIP code with a mature community — the median age is 46.1 years. Economically, 91001 is a upper-middle-income ZIP code: the median household income of $133,840 is significantly above the national average.
Real estate in ZIP code 91001 represents among the most expensive housing markets in the country. The median home value of $1,085,000 is more than double the national average. Renters can expect to pay around $2,298 per month in median rent. Homeownership is strong here — 80.5% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 45% since 2019.
The population of 91001 is racially diverse, with White as the largest group at 36.9%. Residents are highly educated — 62.2% hold a bachelor's degree or higher, which is significantly above the national average. Poverty affects a relatively small share of residents at 7.1%. Household income has grown by 32% since 2019.
The unemployment rate in 91001 stands at 8.1%, which is significantly above the national average. About 23% of workers are remote. As in most parts of the country, driving alone is the dominant commute mode at 65%.
Overall, ZIP code 91001 in Altadena, CA is characterized as upper-middle-income, highly educated, a mature community, and predominantly owner-occupied. With 36,402 residents, a median household income of $133,840, and a median home value of $1,085,000, it offers a clear picture of life in this part of California.