ZIP code · San Tan Valley · Arizona · United States

ZIP code 85140 — San Tan Valley

ZIP code 85140 serves San Tan Valley, Arizona.

Postal code
85140
Single source Value from one source, not cross-checked.
City
San Tan Valley
County
Pinal FIPS 04021
State
Arizona
Country
United States
Coordinates
33.1911, -111.5280 — precision precise (locality)
View on OpenStreetMap
Population
51,078 (ZCTA, ACS 5-year)
Population density
620 / sq mi
Land area
82.4 sq mi (213.4 km²) (ZCTA, ACS 5-year)
Median household income
$98,668
Per-capita income
$39,693
Median age
34.7
Households
16,340
Housing units
17,349
Median home value
$411,800
Median gross rent
$1,883 / month
Congressional districts
AZ-2 (also AZ-5) (119th Congress)
USDA hardiness zone
9b (25 to 30 °F)
Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
Time zone
America/Phoenix (UTC−7, no DST)
Area code
520 (from the nearest rate centre)
Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.

Climate — monthly normals

Warmest month Jul (avg high 104°F), coldest Dec (avg low 39°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F667077859310310410398877464
Avg low °F414348536271797872594739

NOAA 1991–2020 climate normals from the nearest station: CHANDLER HEIGHTS (8.9 mi) · NOAA NCEI

Places in ZIP 85140

Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology

About this page

US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.

GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page