Postal Codes

85140 ZIP Code

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ZIP code 85140 covers San Tan Valley, Arizona, with a population of about 51,078 and a median household income of $98,668.

Population
51,078620 per square mile
Median age
34.74 points below the US average
Median household income
$98,6681.3× the Arizona median
Poverty rate
7.1%5.3 points below the US average
Typical home value
$432,595up 6.2% in five years
Median rent
$1,8831.3× the Arizona median
Degree or higher
29.9%5.1 points below the US average
Homeownership
84.1%19.1 points above the US average
Time zone
Mountain UTC-07:00most of the state does not observe DST
Businesses
500

Where 85140 is

San Tan Valley, Arizona — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population51,078
Median age34.7
Family households81.6%
Born outside the US5.9%
Speaks a language other than English at home12.6%
White (non-Hispanic)67.2%
Black (non-Hispanic)3.8%
Asian (non-Hispanic)1.8%
Hispanic or Latino20.4%
Veterans8.5%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$98,668
Income per person$39,693
Poverty rate7.1%
Households on SNAP or cash assistance9.4%

Household income distribution

Under $10k1.4%
$10–15k1.1%
$15–20k0.7%
$20–25k2.0%
$25–30k1.6%
$30–35k2.2%
$35–40k1.4%
$40–45k3.1%
$45–50k3.0%
$50–60k7.2%
$60–75k8.5%
$75–100k18.5%
$100–125k16.3%
$125–150k11.4%
$150–200k9.2%
$200k or more12.3%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed21,170
Mean adjusted gross income$80,502
Returns declaring $200,000 or more5.1%
Returns, under $25k20.8%
Returns, $25k–$50k22.1%
Returns, $50k–$75k16.7%
Returns, $75k–$100k13.0%
Returns, $100k–$200k22.3%
Returns, $200k or more5.1%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$411,800
Median gross rent$1,883
Rent as a share of household income28.9%
Owner-occupied84.1%
Vacant homes5.8%
Median year built2008

What the homes are

Detached house91.4%
Attached house1.4%
2 to 4 units0.4%
Mobile home6.6%
Boat, RV or van0.2%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$432,595as of 2026-07
Typical home value, 1 yeardown 1.9%
Typical home value, 5 yearsup 6.2%
Typical home value, 10 yearsup 97.9%
Typical asking rent$2,103as of 2026-07
Typical asking rent, 1 yeardown 0.4%
Typical asking rent, 5 yearsup 11.6%
Typical home value since 2000
200020132026$513,706$127,003

$162,012 in 2000 to $432,595 in 2026.

Typical asking rent
201920222026$2,111$1,409

$1,409 in 2019 to $2,103 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate4.3%
Bachelor's degree or higher29.9%
High school diploma or higher94%
Works from home16.7%
Drives to work alone73.4%
Takes public transport0.1%
Commutes 45 minutes or more38.8%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity36.2% 2.8 pts above the national average of 33.4%
Diagnosed diabetes9.5% 2.5 pts below the national average of 12%
Currently smokes10.9% 2.3 pts below the national average of 13.2%
High blood pressure29.9% 4.2 pts below the national average of 34.1%
Fair or poor general health16.8% 3.5 pts below the national average of 20.3%
No health insurance (18–64)10.2% 1.1 pts below the national average of 11.3%
Depression21.5% same as the national average of 21.9%
No leisure-time physical activity20.2% 5.2 pts below the national average of 25.4%
Arthritis23.6% 1.5 pts below the national average of 25.1%
Binge drinking17.3% 1.3 pts above the national average of 16%
Taking blood pressure medication71.7% 3 pts below the national average of 74.7%
Cancer (non-skin)7.9% same as the national average of 7.7%
Current asthma11% 0.6 pts above the national average of 10.4%
Coronary heart disease4.7% 1.5 pts below the national average of 6.2%
Routine check-up in past year73.7% 3 pts below the national average of 76.7%
Cholesterol screening84.8% 1.1 pts below the national average of 85.9%
Cognitive disability14.3% 0.5 pts below the national average of 14.8%
Colorectal screening62.5% 1.8 pts below the national average of 64.3%
COPD5.6% 1 pts below the national average of 6.6%
Visited a dentist61.5% same as the national average of 61.3%
Any disability27.8% 2.9 pts below the national average of 30.7%
Lacks emotional support24.4% same as the national average of 24.8%
Food insecurity12.9% 4.2 pts below the national average of 17.1%
Received food stamps7.9% 6.4 pts below the national average of 14.3%
Hearing disability6.2% 0.5 pts below the national average of 6.7%
High cholesterol36.5% same as the national average of 36.2%
Housing insecurity10.5% 3.3 pts below the national average of 13.8%
Independent living disability6.6% 1.8 pts below the national average of 8.4%
Lacks transport7.1% 2.1 pts below the national average of 9.2%
Loneliness32.8% 1.6 pts below the national average of 34.4%
Mammography use70.5% 5.4 pts below the national average of 75.9%
Poor mental health (14+ days)16.7% same as the national average of 16.8%
Mobility disability10.9% 3.1 pts below the national average of 14%
Poor physical health (14+ days)12.4% 1.1 pts below the national average of 13.5%
Self-care disability2.8% 1.2 pts below the national average of 4%
Utility shut-off threat6.9% 1.9 pts below the national average of 8.8%
Sleeps under 7 hours38.6% 2.2 pts above the national average of 36.4%
Stroke2.7% 0.7 pts below the national average of 3.4%
All natural teeth lost10.8% 2.2 pts below the national average of 13%
Vision disability4% 1.6 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments500
People employed3,947
Annual payroll$180,387,000
Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 48.1% of US census tracts
FEMA ratingRelatively Low to Relatively High across the 8 census tracts this ZIP code covers
Expected annual loss60.3 out of 100
Community resilience12.9 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Heat wave94.9Very High at its worst in this ZIP code
Wildfire90.5Relatively Moderate at its worst in this ZIP code
Drought86.6Relatively Moderate at its worst in this ZIP code
Lightning82.1Relatively High at its worst in this ZIP code
River flooding66.9Very High at its worst in this ZIP code
Hail51.9Relatively Low at its worst in this ZIP code
Strong wind38.4Relatively Moderate at its worst in this ZIP code
Earthquake32.4Relatively Low at its worst in this ZIP code
Tornado16.5Very Low at its worst in this ZIP code
Hurricane14.8Very Low at its worst in this ZIP code
Winter weather13.9Very Low at its worst in this ZIP code
Compared with Arizona and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPArizonaUnited States
Median household income$98,668$76,872$78,538
Income per person$39,693$40,736$43,289
Poverty rate7.1%12.8%12.4%
Median home value$411,800$358,900$303,400
Median gross rent$1,883$1,431$1,348
Homeownership84.1%67%65%
Bachelor's degree or higher29.9%32.6%35%
Unemployment rate4.3%5.2%5.2%
Works from home16.7%16.5%13.5%
Born outside the US5.9%12.9%13.9%
Median age34.738.838.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationCHANDLER HEIGHTS, AZ US14.4 km away

Average high and low by month

January65.6°F / 40.7°F
February69.5°F / 43.1°F
March76.5°F / 48.2°F
April84.6°F / 53.4°F
May93.3°F / 62.1°F
June102.8°F / 71.1°F
July104.2°F / 78.5°F
August102.7°F / 77.5°F
September97.8°F / 71.7°F
October86.5°F / 59°F
November73.5°F / 47.3°F
December63.9°F / 39.3°F
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarketNone of this ZIP code
Far from a supermarket93% of this ZIP code's area
No vehicle and far from a supermarketNone of this ZIP code
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

This ZIP code is served by 3 school districts, so the address decides which one, not the ZIP code.

J. O. Combs Unified School District76.4% of this ZIP code's land area
Florence Unified School District12.1% of this ZIP code's land area
Apache Junction Unified District11.5% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability38more vulnerable than 38% of US census tracts
Socioeconomic status52more vulnerable than 52% of US census tracts
Household characteristics21more vulnerable than 21% of US census tracts
Racial and ethnic minority status55more vulnerable than 55% of US census tracts
Housing type and transport31more vulnerable than 31% of US census tracts
Walkability5 out of 20Least walkable
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

85143 San Tan Valley, AZ0 km away
85144 San Tan Valley, AZ0 km away
85142 Queen Creek, AZ11.8 km away
85127 Chandler Heights, AZ15.9 km away
85298 Gilbert, AZ17.6 km away
85297 Gilbert, AZ19.5 km away
85212 Mesa, AZ19.6 km away
85236 Higley, AZ20 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

Pinal County100% of this ZIP code's land area
Time zoneMountain (UTC-07:00 standard)
Daylight saving timeNot observed in most of the state; the Navajo Nation is the exception
Land area82.39 sq mi
Population density620 people per sq mi
Latitude, longitude33.1911, -111.5280

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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