Residential delivery area · Arizona
ZIP Code 85140: San Tan Valley, AZ
ZIP code 85140 uses the postal name San Tan Valley, Arizona and lies entirely in Pinal County (Census 2020 ZIP-county file). About 51,000 people live there (Census Bureau, ACS 2020-2024), the more populous of San Tan Valley's 2 residential ZIP codes. Median household income is $101,477 (Census Bureau, ACS 2020-2024). By Census place, its land lies in San Tan Valley (31%) and Queen Creek (10%); 59% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- San Tan Valley · 2 residential ZIPs
- County
- Pinal County
- Census places
- San Tan Valley (31%) census-designated place; Queen Creek (10%)
- Metro area
- Phoenix-Mesa-Chandler, AZ
- House districts
- AZ-2 (53%), AZ-5 (47%) 119th Congress, by share of land
- State
- Arizona
- Time zone
- Mountain (no daylight saving)
- Land area
- 82.4 sq mi · 622 people per sq mi
- PO Box ZIPs
- 85144 also use the name San Tan Valley
Where is ZIP code 85140?
85140 centers on 33.248°, -111.489° and covers 82.4 square miles of land. It borders 6 ZIP codes: 85143, 85212, 85119, 85120, 85118, 85142.
The map draws ZIP code areas only. For the streets inside 85140, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 85140 compare with the rest of San Tan Valley?
| Measure | 85140 | In San Tan Valley | In Pinal County | In AZ |
|---|---|---|---|---|
| People (ACS 2020-2024) | 51,260 | 1st of 2 | 6th of 35 | 34th of 417 |
| Median household income | $102k | 1st of 2 | 5th of 24 | 55th of 264 |
| Median home value | $445k | 1st of 2 | 6th of 29 | 87th of 282 |
Its median household income is higher than in 82% of U.S. residential ZIP codes, and it is denser than 74% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 85140?
The 2020 Census counted 45,381 people in 85140; the ACS, which samples households over 2020-2024, estimates 51,260. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 51,260
- 2020 Census count
- 45,381
- Households
- 16,120
- Median age
- 34.6
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 85140?
Of the 51,260 people the ACS estimates in 85140, 28.6% are under 18 and 14.7% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (66.4%), then Hispanic or Latino (22.9%).
- Under 1828.6%
- 18 to 6456.7%
- 65 and older14.7%
- White, not Hispanic66.4%
- Hispanic or Latino22.9%
- Other or two or more5.1%
- Black, not Hispanic4.0%
- Asian, not Hispanic1.6%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 85140 earn?
Median household income is $101,477 (ACS 2020-2024), the 5th highest of the 24 ranked ZIP codes in Pinal County.
- Median household income
- $101,477
- Income per person
- $41,200
- Below the poverty line
- 7.5%
- Unemployed (of the labor force)
- 4.4%
- Adults 25+ with a bachelor's degree
- 30.1%
- Adjusted gross income per tax return, 2022
- $80,50221,170 returns; wages 74% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 85140?
FHFA's house price index for 85140, built from repeat sales and appraisals of the same homes, rose 145% from 2015 to 2025 and rose 65% from 2020 to 2025, and moved +2.9% in 2025.
- Median home value (owners' estimate)
- $445,000
- Median gross rent
- $2,062
- Homes owned by their occupants
- 85.8%
- Housing units
- 17,208
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 85140?
532 business establishments had a location in this ZIP code in 2023, 230 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction103
- Health care and social assistance74
- Professional, scientific, and technical services61
- Administrative and support and waste management and remediation services58
- Other services (except public administration)43
- Retail trade41
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 85140?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 85143 | San Tan Valley | 44,444 | $94k | 6.6 mi |
| 85212 | Mesa | 55,283 | $126k | 9.6 mi |
| 85119 | Apache Junction | 25,420 | $72k | 9.6 mi |
| 85120 | Apache Junction | 31,191 | $58k | 10.5 mi |
| 85118 | Gold Canyon | 14,932 | $86k | 10.5 mi |
| 85142 | Queen Creek | 93,700 | $129k | 10.9 mi |
| 85209 | Mesa | 43,150 | $84k | 12.3 mi (near) |
| 85208 | Mesa | 37,225 | $69k | 13.5 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.