Market Intelligence · AZ / San Tan Valley

San Tan Valley, AZ 85140 Housing Market

The typical home value in San Tan Valley, AZ 85140 is $428,041, down 1.6% over the past year. The median list price is $450,000, with homes spending 66 days on the market as of September 2026.

Updated September 2026Median value$428K

The median home value in San Tan Valley, AZ 85140 is $428K as of September 2026, down 1.6% 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 85140 range

$394K to $462K

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

-1.6% over 12 months

Sep 2025$435K

Low $428KHigh $435K

Sep 2026$428K

The numbers

What is the 85140 housing market like?

As of September 2026

Typical home value

$428K

1.6%YoY

Median list price

$450K

0.0%MoM

Days on market

4.3%MoM

Homes for sale

286

3.2%MoM

Price cuts

29.2%

17.3%MoM

New listings

106

6.0%MoM

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

The outlook

85140 housing market forecast 2027

-1.5%

Zillow forecast, 12 months to September 2027

Zillow forecasts typical home values in 85140 to fall 1.5% by September 2027.

Over the 12 months through September 2026, typical home values in 85140 fell 1.6%, per the Zillow Home Value Index.

Will home prices drop in 85140?

Zillow's forecast says they may: it expects typical home values in 85140 to fall 1.5% by September 2027, after a 1.6% 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 85140 home prices compare?

85140$428,041
San Tan Valley$400,613
Arizona$385,442
United States$285,347

Median Zillow home value (ZHVI), as of September 2026. Comparison levels are medians across every ZIP code with Zillow data (San Tan Valley: 2 ZIPs; Arizona: 300 ZIPs; United States: 26,262 ZIPs).

Context

San Tan Valley has 286 homes for sale as of September 2026, with 106 new listings added that month. The market is showing signs of caution: 29.2% of listings have received a price cut. With homes staying on the market for 66 days and values declining year-over-year, sellers should be realistic about pricing and prepared for a slower sales process than might have occurred in previous years.

Monthly payment

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Home price

Down payment20% · $85,608

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Common questions

What people ask us.

What is the typical home value in 85140?

The typical home value in San Tan Valley is $428,041, down 1.6% over the past year as of September 2026.

How many homes are currently for sale in 85140?

There are 286 homes for sale in San Tan Valley as of September 2026, with 106 new listings in that same month.

How long do homes stay on the market in 85140?

The median days on market in San Tan Valley is 66 days as of September 2026.

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