Poston ZIP code, Arizona
The ZIP code for Poston, AZ is 85371, and its area code is 928.
- USPS city name
- 1 ZIP code
- Population
- 105
- Area code
- 928
- County
- La Paz County
- State
- Arizona
NANPA lists no telephone rate centre for Poston itself, so these are the area codes of the nearest one, Parker (8.5 miles). A town on an area-code boundary can differ from its neighbour.
ZIP codes addressed as Poston
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
85371 | Poston , AZ | Standard | 111 | — | — |
Map of Poston ZIP codes
The ZIP codes of Poston, AZ, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Towns near Poston
The nearest larger towns are Big River, CA (1,140 people, 10 mi), Parker (3,388 people, 11 mi) and Bluewater (897 people, 15 mi).
More nearby: every ZIP code in La Paz County · Arizona ZIP codes
Cite this page
zipcodes.pro. “Poston, AZ ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/az/poston
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