ZIP code · Poston · Arizona · United States

ZIP code 85371 — Poston

ZIP code 85371 serves Poston, Arizona.

Postal code: 85371
Single source Value from one source, not cross-checked.
City: Poston
County: La Paz FIPS 04012
State: Arizona
Country: United States
Coordinates: 33.9906, -114.3963 — precision precise (locality)
View on OpenStreetMap
Population: 280 (ZCTA, ACS 5-year)
Population density: 30 / sq mi
Land area: 9.3 sq mi (24.1 km²) (ZCTA, ACS 5-year)
Median household income: $13,750
Per-capita income: $12,278
Median age: 27.7
Households: 148
Housing units: 153
Median gross rent: $310 / month
Congressional district: AZ-9 (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/Los_Angeles (UTC−8 / UTC−7 DST)
Area code: 928 (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 85371 with another ZIP · ZIPs within 25 miles · distance from 85371

Climate — monthly normals

Warmest month Jul (avg high 108°F), coldest Dec (avg low 40°F).

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high °F	69	73	80	87	96	105	108	108	103	90	78	67
Avg low °F	42	45	50	56	64	74	81	81	74	61	49	40
Precip in	0.8	0.7	0.6	0.2	0.1	0.0	0.2	0.4	0.4	0.4	0.2	0.5

NOAA 1991–2020 climate normals from the nearest station: PARKER (12.9 mi) · NOAA NCEI

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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

Map of ZIP code 85371

Climate — monthly normals

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