Real Estate Data API

Altadena CA

123 active listings out of 12K total properties we track across 3 Altadena ZIPs — listings, off-market homes, rentals, and full sales/tax history. Refreshed nightly.

Get this data → API docs
Active
123
Median
$1.5M
±0%
Sales (12mo)
296
Tracked
12K
Zoomed out

While you're here, take in the bigger picture — maps below show Los Angeles metro, not just Altadena. Same company, same dataset, different resolution.

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Inventory breakdown

Distribution of the 123 currently-active listings in Altadena, CA. Full dataset covers 12K properties — listings, off-market homes, rentals, and full history.

Active by price range
Under $300K 0 (0%)
$300K–$500K 1 (0.8%)
$500K–$750K 14 (11.5%)
$750K–$1M 19 (15.6%)
$1M–$2M 62 (50.8%)
$2M+ 26 (21.3%)
Active by bedroom count
Studio/1 bd 12
2 bd 15
3 bd 32
4 bd 32
5+ bd 29
Active by property type
Single Family 108 (87.8%)
Multi Family 11 (8.9%)
Condo 2 (1.6%)
Lot 1 (0.8%)
Townhouse 1 (0.8%)

ZIP codes in Altadena

Drill into any ZIP for hex-level breakdowns.

91001
→
Active
123
Tracked
12K
91011
→
Active
0
Tracked
2
91107
→
Active
0
Tracked
1

Nearby cities

Other California cities within driving distance.

Pasadena
2.8 mi away
Active: 558
Glendale
3.2 mi away
Active: 536
La Canada Flintridge
3.7 mi away
Active: 63
San Marino
5.1 mi away
Active: 48
Sierra Madre
5.3 mi away
Active: 44
Montrose
5.4 mi away
Active: 12
Tustin
5.5 mi away
Active: 218
South Pasadena
5.6 mi away
Active: 54
For Developers

Get Altadena, CA data in your app

curl
request 
GET https://api.straply.com/v1/markets/city/altadena-ca
Authorization: Bearer $STRAPLY_KEY
200 OK response 
{
  "city": "altadena-ca",
  "total_tracked": 12374,
  "active": 123,
  "median_list": 1499999
}
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Altadena, CA real estate: market summary

As of April 2026, Straply tracks 12,374 homes in Altadena, CA, with 123 active for sale at a median list price of $1,499,999 (~$729/sq ft). Notably, it's a high-end market — 24% of recent sales were $1M or more.

Median list price
$1,499,999
Median $/sq ft
$729
Active listings
123
Properties tracked
12,374

Frequently asked: Altadena, CA real estate

What is the median home price in Altadena?

The median list price in Altadena, CA is $1,499,999 (about $729 per square foot), based on 123 active listings tracked by Straply as of April 2026.

What price range are homes in Altadena?

Active listings in Altadena, CA concentrate in: 51% $1m–$2m and 21% $2m+.

How many homes are for sale in Altadena?

Straply is tracking 123 active listings in Altadena, CA out of 12,374 properties on record as of April 2026.

How old are the homes in Altadena?

Most homes in Altadena, CA were built in the 1940s. About 6% were built after 1980, while 38% predate 1940. The newest tracked home dates to 2026.

What types of homes are in Altadena?

Altadena, CA is mostly single-family homes (88% of listings). Also common: multi-family homes 9%.

How many bedrooms do homes in Altadena typically have?

The most common size in Altadena, CA is 3 bd.

What areas are near Altadena?

Nearby markets Straply also tracks include Pasadena, Glendale, La Canada Flintridge, San Marino.

Data as of April 2026. Source: Straply. For address-level history and programmatic access, use the Straply API.