Zip Code 85140 — San Tan Valley, AZ
85140 is a ZIP Code associated with San Tan Valley, AZ, located within Pinal. The postal region supports an estimated population of 51,260 residents across Data Pending housing units, with a population density of 240.2 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (33.248050, -111.489210)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 85140 |
| Primary City | San Tan Valley |
| State / Province | AZ |
| County | Pinal |
| Total Population | 51,260 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 240.2 people/sq mi |
| Timezone | America/Phoenix |
How 85140 Compares
| Metric | ZIP 85140 | Pinal County | AZ State Average |
|---|
| Population | 51,260 | 562,837 | 7,380,680 |
| Median Income | Data Pending | N/A | N/A |
| Population Density | 240.2 /sq mi | -- | -- |
Nearby ZIP Codes
| ZIP Code | City | Distance | Population | Median Income |
|---|
| Zip 85143 | San Tan Valley | 6.6 mi | 44,444 | N/A |
| Zip 85212 | Mesa | 9.6 mi | 55,283 | N/A |
| Zip 85119 | Apache Junction | 9.7 mi | 25,420 | N/A |
| Zip 85120 | Apache Junction | 10.5 mi | 31,191 | N/A |
| Zip 85142 | Queen Creek | 10.9 mi | 93,700 | N/A |
Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →