91001 Altadena
266 active listings out of 13K total properties we track in ZIP 91001 (Altadena, CA) — listings, off-market homes, rentals, and full sales/tax history. Refreshed nightly.
While you're here, take in the bigger picture — maps below show Los Angeles metro, not just 91001. Same company, same dataset, different resolution.
Over the past 12 months, ZIP 91001 has recorded 332 home sales. In September 2026 there were29 sales (+163.6% vs the prior month). Most recent median sale price: $855K.
- Tracked
- 13K
- Active
- 266
- Median list
- $998K
- Sales (12mo)
- 332
Right now, 266 homes are actively for sale in ZIP 91001. Median list price is $998K at $638/sqft. Hover each hex for micro-neighborhood stats (median price, $/sqft, top property type).
- Tracked
- 13K
- Active
- 266
- Median list
- $998K
- Sales (12mo)
- 332
- Tracked
- 13K
- Active
- 266
- Median list
- $998K
- Sales (12mo)
- 332
- Tracked
- 13K
- Active
- 266
- Median list
- $998K
- Sales (12mo)
- 332
- Tracked
- 13K
- Active
- 266
- Median list
- $998K
- Sales (12mo)
- 332
- Tracked
- 13K
- Active
- 266
- Median list
- $998K
- Sales (12mo)
- 332
Inventory breakdown
Distribution of the 266 currently-active listings in ZIP 91001. Full dataset covers 13K properties — listings, off-market homes, rentals, and full history.
Get Altadena 91001 data in your app
GET https://api.straply.com/v1/markets/zip/91001
Authorization: Bearer $STRAPLY_KEY{
"zip": "91001",
"total_tracked": 12769,
"active": 266,
"median_list": 998000
}Nearby ZIP codes
Other California ZIPs within a short drive of 91001.
ZIP 91001 · Altadena, CA real estate: market summary
As of November 2026, Straply tracks 12,769 homes in ZIP 91001 (Altadena, CA), with 266 active for sale at a median list price of $998,000 (~$638/sq ft). Notably, the market is cooling — the median sale price is down 9% year over year.
- Median list price
- $998,000
- Median $/sq ft
- $638
- Active listings
- 266
- Median sale price
- $855,000 (-9% YoY)
- Properties tracked
- 12,769
Frequently asked: ZIP 91001 · Altadena, CA real estate
What is the median home price in ZIP 91001?
The median list price in ZIP 91001 (Altadena, CA) is $998,000 (about $638 per square foot), based on 266 active listings tracked by Straply as of November 2026.
What price range are homes in ZIP 91001?
Active listings in ZIP 91001 (Altadena, CA) concentrate in: 32% $1m–$2m and 24% $500k–$750k.
Are home prices in ZIP 91001 going up or down?
The median sale price is $855,000, down 9% year over year. Straply tracked 332 sales here over the past 12 months.
How many homes are for sale in ZIP 91001?
Straply is tracking 266 active listings in ZIP 91001 (Altadena, CA) out of 12,769 properties on record as of November 2026.
How old are the homes in ZIP 91001?
Most homes in ZIP 91001 (Altadena, CA) were built in the 1940s. About 7% were built after 1980, while 37% predate 1940. The newest tracked home dates to 2026.
What types of homes are in ZIP 91001?
ZIP 91001 (Altadena, CA) is mostly single-family homes (54% of listings). Also common: lots / land 38%, multi-family homes 6%.
How many bedrooms do homes in ZIP 91001 typically have?
The most common size in ZIP 91001 (Altadena, CA) is 3 bd.
What areas are near ZIP 91001?
Nearby markets Straply also tracks include Pasadena 91104, Pasadena 91103, Pasadena 91101, Pasadena 91106.
Data as of November 2026. Source: Straply. For address-level history and programmatic access, use the Straply API.