ZIP code · Maricopa · Arizona · United States
ZIP code 85138 — Maricopa
ZIP code 85138 serves Maricopa, Arizona.
- Postal code
- 85138Single source Value from one source, not cross-checked.
- City
- Maricopa
- County
- Pinal FIPS 04021
- State
- Arizona
- Country
- United States
- Coordinates
- 33.0073, -111.9324 — precision precise (locality)
View on OpenStreetMap - Population
- 52,342 (ZCTA, ACS 5-year)
- Population density
- 618 / sq mi
- Land area
- 84.7 sq mi (219.5 km²) (ZCTA, ACS 5-year)
- Median household income
- $93,609
- Per-capita income
- $35,598
- Median age
- 36
- Households
- 16,280
- Housing units
- 18,215
- Median home value
- $342,900
- Median gross rent
- $1,919 / month
- Congressional district
- AZ-2 (119th Congress)
- USDA hardiness zone
- 9a (20 to 25 °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 85138 with another ZIP · ZIPs within 25 miles · distance from 85138
Map of ZIP code 85138
Climate — monthly normals
Warmest month Jul (avg high 109°F), coldest Dec (avg low 35°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 69 | 73 | 80 | 88 | 97 | 107 | 109 | 107 | 102 | 91 | 78 | 68 |
| Avg low °F | 37 | 40 | 45 | 51 | 59 | 69 | 78 | 77 | 69 | 55 | 43 | 35 |
| Precip in | 0.8 | 0.8 | 0.9 | 0.2 | 0.2 | 0.1 | 0.7 | 1.0 | 0.7 | 0.5 | 0.5 | 0.8 |
NOAA 1991–2020 climate normals from the nearest station: MARICOPA 4 N (9.3 mi) · NOAA NCEI
Places in ZIP 85138
- 15 schools
- 1 colleges & universities
- 3 hospitals & clinics
- 3 pharmacies
- 2 supermarkets
- 19 restaurants & cafés
- 43 parks
- 24 playgrounds
- 4 gyms & sports centres
- 2 libraries
- 2 places of worship
- 1 banks
- 3 gas stations
- 2 police & fire stations
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