PostonAZ
105 people live in this town, settled in 1949.
Is Poston a good place to live?
68% of residents live below the poverty line in Poston, above both the Arizona town median (12%) and the median of U.S. towns (9.6%). Among 141 Arizona towns, just 4 have a higher midsummer high than Poston. Poston has fewer than 1,000 residents, too few for fair grades; the figures below are still real.
105 people, and everyone knows the way
In a town this size, neighbors are the best guide. Ask them anything.
Moving to Poston: who provides what
Poston is unincorporated, so La Paz County and regional agencies provide most services.
EPA SDWIS (Oct 9, 2026) · HIFLD + EIA-861 2025 · Census 2020 ZCTAs · NCES 2024–25 · registration: vote.gov, updated Sep 12, 2025.
The data
Ordered by what stands out in Poston.
The FEMA risk score in Poston is higher than in most of Arizona or the rest of the country
Expected losses in Poston break down as 79% from inland flooding and 12% from heat waves.
FEMA National Risk Index · OpenFEMA
Mild winters and hot summers: that is Poston’s year
July afternoons reach 110°, January nights drop to 42° and snow is almost unheard of.
Typical low → high °F
NOAA U.S. Climate Normals, 1991–2020
More of Poston’s adults smoke cigarettes than in the typical Arizona or U.S. town
Among 141 Arizona towns, just 8 have a higher share of adults who worry about having enough food than Poston. 47% of adults sleep under 7 hours locally. CDC measures, 32 in all: Poston beats Arizona on 2 and trails on 25.
| Poston | Arizona towns | U.S. towns | |
|---|---|---|---|
| Fair or poor health (CDC PLACES) | 33% | 21% | 19% |
| Smoke cigarettes (CDC PLACES) | 27% | 13% | 14% |
| Frequent mental distress (CDC PLACES) | 24% | 16% | 17% |
| Frequent physical distress (CDC PLACES) | 21% | 15% | 14% |
| What stands out | Poston | AZ |
|---|---|---|
| Fewer adults who have had cancer | 5.2% | 8.8% |
| Fewer adults with high cholesterol | 30.4% | 37.3% |
| More older adults who have lost all their teeth | 44.2% | 14.7% |
CDC PLACES 2025 · modeled estimates for adults · CMS · HRSA
Everything we know about Poston
Colleges nearby
None within 15 miles of Poston; the nearest are
About 0 of every 100 Poston residents are enrolled in college, against 6 across Arizona.
About Poston
CDP in La Paz County, Arizona
Poston is an unincorporated community and census-designated place (CDP) in La Paz County, Arizona, United States, in the Parker Valley. The population was 285 at the 2010 census, down from 389 in 2000. During World War II, Poston was the site of the Poston War Relocation Center, one of the United States' largest Japanese-American internment camps, where over 17,000 Japanese-Americans were held over a three-year period. The camp sites are now home to a monument dedicated to those interned there.
From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)
- Area
- 1.4 sq mi
- Elevation
- 335 ft
- ZIP code
- 85371
- Area code
- 928
Questions about Poston
Short answers, built from the data on this page.
Is Poston, AZ a good place to live?
Poston has fewer than 1,000 residents, too few for fair grades; the figures below are still real.