Market Intelligence · CA / Altadena

Altadena, CA 91001 Housing Market

The typical home value in Altadena, CA 91001 is $1,126,420, down 5.3% over the past year as of September 2026. Homes are listed at a median price of $1,572,000 and spend a median of 50 days on the market.

Updated September 2026Median value$1126K

The median home value in Altadena, CA 91001 is $1.13M as of September 2026, down 5.3% year over year, according to Zillow ZHVI. For a read on your own home, start with a free consultation: a licensed local pro will walk you through your numbers and your options, with no obligation.

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Typical 91001 range

$1.04M to $1.22M

This is an automated estimate, not an appraisal. Actual value is determined by current market conditions and professional evaluation. It is provided for informational purposes only and is not an offer to buy or a promise of value.

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12-month value trend

-5.3% over 12 months

Sep 2025$1.19M

Low $1.1MHigh $1.19M

Sep 2026$1.13M

The numbers

What is the 91001 housing market like?

As of September 2026

Typical home value

$1.13M

5.3%YoY

Median list price

$1.57M

4.7%MoM

Days on market

16.7%MoM

Homes for sale

4.7%MoM

Price cuts

8.2%

47.4%MoM

New listings

25.0%MoM

Sources · Zillow ZHVI (September 2026) / Realtor.com (September 2026) / FRED (October 2026)

The outlook

91001 housing market forecast 2027

+2.1%

Zillow forecast, 12 months to September 2027

Zillow forecasts typical home values in 91001 to rise 2.1% by September 2027.

Over the 12 months through September 2026, typical home values in 91001 fell 5.3%, per the Zillow Home Value Index.

Will home prices drop in 91001?

Zillow's forecast does not call for a drop: it expects typical home values in 91001 to rise 2.1% by September 2027, after a 5.3% decline over the past 12 months. Forecasts are not guarantees: mortgage rates, inventory, and the wider economy can move values either way.

Forecast: Zillow Home Value Forecast, published October 2026. A forecast, not a guarantee.

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The comparison

How do 91001 home prices compare?

91001$1,126,420
Altadena$1,126,420
California$692,765
United States$285,347

Median Zillow home value (ZHVI), as of September 2026. Comparison levels are medians across every ZIP code with Zillow data (Altadena: 1 ZIP; California: 1,543 ZIPs; United States: 26,262 ZIPs).

Context

Altadena's 91001 ZIP code shows a market that has cooled. The typical home value is $1,126,420, down 5.3% over the past year as of September 2026. There were 41 homes for sale, with 20 new listings hitting the market. The median list price stands at $1,572,000, and homes take a median of 50 days to sell. For a seller, this means pricing realistically from day one matters more than testing the market high.

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Down payment20% · $225,284

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Common questions

What people ask us.

How much is a home in 91001 worth?

The typical home value in 91001 is $1,126,420 as of September 2026, down 5.3% over the past year.

How fast are homes selling in 91001?

Homes in 91001 spend a median of 50 days on the market as of September 2026, so expect a slower pace than a hot seller's market.

How much competition do sellers face in 91001?

As of September 2026 there were 41 homes for sale and 20 new listings in 91001, with a median list price of $1,572,000.

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