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Poston, AZ
Census-designated place in La Paz County, Arizona. ZIP codes: 85371.
Population
105
Land area
1.4sq mi
People per sq mi
76
ZIP codes
1
Poston and its ZIP codes
Local data for Poston, AZ
Counts from official public data
Economy and federal money
Jobs, pay, income and spending are for La Paz County. PPP loans are for Poston.
Unemployment rate
7.1%
Aug 2026, +0.6 pts in a year
Average annual pay
$51,352
6,695 jobs, 2025
Income per person
$57,451
BEA, 2024
Federal spending
$258M
FY 2026, $15,604 per person
Environment and hazard risk
Poston, AZ, from FEMA, NOAA and EPA
Natural hazard risk
Relatively Moderate
Top: heat wave
Storm events since 1996
382
Countywide, mostly flash flood
Flood insurance policies
212
1.5% of homes, county
July high / Jan low
108° / 42°F
4.6 inches of rain a year
Hazards, floods and storm historyCheck a flood zone1 historic places
Health statistics
Share of adults in Poston, AZ, CDC PLACES estimates
Obesity
42.1%
U.S. 33.3% +8.8 pts
Diabetes
15.1%
U.S. 12.1% +3.0 pts
Smoking
27.1%
U.S. 12.8% +14.3 pts
Uninsured (18-64)
17.3%
U.S. 11.1% +6.2 pts
ZIP codes in Poston
1 in or overlapping Poston. Population shown
Cities near Poston
| Name | Distance | Land area (sq mi) |
|---|---|---|
| Big River, CACensus-designated place | 11 mi | 10.8 |
| ParkerTown | 11 mi | 22 |
| BluewaterCensus-designated place | 15 mi | 2.1 |
| Bluewater, CACensus-designated place | 15 mi | 1 |
| Cienega SpringsCensus-designated place | 19 mi | 3.5 |
| BouseCensus-designated place | 25 mi | 136.2 |
| QuartzsiteTown | 25 mi | 36.3 |
| Parker StripCensus-designated place | 25 mi | 3.1 |
| EhrenbergCensus-designated place | 26 mi | 11.9 |
| Blythe, CACity | 26 mi | 26.5 |
| UttingCensus-designated place | 29 mi | 26.6 |
Frequently asked questions
- What county is Poston, AZ in?
- Poston is in La Paz County, Arizona.
- What ZIP codes are in Poston, AZ?
- ZIP codes in or overlapping Poston include 85371.
- What is the population of Poston, AZ?
- About 105 people live in Poston, based on American Community Survey 5-year estimates.
- What cities are near Poston?
- Nearby places include Big River, CA (11 mi), Parker (11 mi), Bluewater (15 mi), Bluewater, CA (15 mi), Cienega Springs (19 mi).
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023