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ZIP code 85140: San Tan Valley, AZ

85140 is a ZIP code in San Tan Valley, Arizona, mainly in Pinal County, part of the Phoenix-Mesa-Chandler, AZ metro area. About 51,260 people live here.

Population
51,260
Median household income
$101,477
Typical home value
$428,000-1.6% in 12 months
Median rent
$2,062gross, per month
Median age
34.6
Homeowners
85.8%of occupied homes
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Shaded: ZIP code 85140's area. Click anywhere on the map to see which ZIP code it's in.

ZIP codes within 10 milesWithin 25 miles

ZIP code 85140 details

CitySan Tan Valley
StateArizona
CountyPinal County
Metro areaPhoenix-Mesa-Chandler, AZ
Time zoneMountain Time (UTC−7), no daylight saving time
TypeStandard (delivery area)
Land area82.4 sq mi
Population density622 people per sq mi
Bachelor's degree or higher30.1% of adults 25+
Average commute36.8 minutes
Center coordinates33.24806, -111.48924

Median rent in 85140 by bedrooms

SizeMedian gross rent
2 bedrooms$1,343/mo
3 bedrooms$2,035/mo
4 bedrooms$2,082/mo
5+ bedrooms$2,741/mo

Gross rent includes utilities paid by the tenant. ACS 2020–2024; sizes with too few rentals to estimate are left out.

ZIP codes near 85140

ZIP codeCityDistancePopulation
85144San Tan Valley, AZ4.5 mi—
85143San Tan Valley, AZ6.6 mi44,444
85212Mesa, AZ9.6 mi55,283
85119Apache Junction, AZ9.6 mi25,420
85120Apache Junction, AZ10.5 mi31,191
85118Gold Canyon, AZ10.5 mi14,932
85117Apache Junction, AZ10.9 mi—
85142Queen Creek, AZ10.9 mi93,700

Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology

Buying a home in 85140?

A typical home in ZIP code 85140 is worth about $428,000 (Zillow Home Value Index). The median household here earns $101,477 a year. See what buying here would cost per month, with Arizona average taxes and insurance filled in.

Monthly payment for a $428,000 homeWhat can a $101,477 income afford?Rental property numbers

About ZIP code 85140

What city is ZIP code 85140?

ZIP code 85140 is in San Tan Valley, AZ, in Pinal County.

What county is ZIP code 85140 in?

85140 is mainly in Pinal County, Arizona.

What is the population of ZIP code 85140?

About 51,260 people live in ZIP code 85140, according to the American Community Survey 2020–2024 5-year estimates.

What time zone is ZIP code 85140 in?

85140 is in Mountain Time (UTC−7). It has no daylight saving time.

What other ZIP codes does San Tan Valley have?

San Tan Valley, AZ also uses 85143 and 85144.