ZIP code · Apache Junction · Arizona · United States
ZIP code 85178 — Apache Junction
ZIP code 85178 serves Apache Junction, Arizona.
- Postal code
- 85178Single source Value from one source, not cross-checked.
- City
- Apache Junction
- County
- Pinal
- State
- Arizona
- Country
- United States
- Coordinates
- 33.4050, -111.5470
View on OpenStreetMap - 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.
Tools: compare 85178 with another ZIP · ZIPs within 25 miles · distance from 85178
Climate — monthly normals
Warmest month Jul (avg high 105°F), coldest Dec (avg low 42°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 67 | 70 | 77 | 85 | 93 | 103 | 105 | 104 | 99 | 88 | 76 | 66 |
| Avg low °F | 43 | 44 | 48 | 53 | 60 | 69 | 77 | 76 | 71 | 60 | 50 | 42 |
| Precip in | 1.5 | 1.6 | 1.3 | 0.5 | 0.3 | 0.1 | 1.4 | 1.5 | 1.1 | 0.7 | 1.0 | 1.5 |
NOAA 1991–2020 climate normals from the nearest station: APACHE JUNCTION 5 NE (5.5 mi) · NOAA NCEI
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 · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page