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🇺🇸 United States ZIP Code

PO BOX

85371

Poston

ZIP Code 85371 is a po box zip code serving Poston, Poston, Arizona (AZ), in La Paz County, United States. It has an estimated population of 419 with a median household income of $23,317. The area falls within the America/Phoenix timezone.

Median Household Income vs. National Average

$0 National: $37,585 $150K+ $23,317

Location

Country
🇺🇸 United States
State / Province
Arizona (AZ)
County
La Paz
City
Poston
Timezone
America/Phoenix

Coordinates

Latitude
33.990600
Longitude
-114.396300

Geographic Details

Land Area
177.27 mi²
Population Density
2.0 people per mi²
Bounding Box
34.050263°N, 33.594707°S, -114.256694°E, -114.477562°W

With 419 residents spread across 177.27 square miles, this area has a population density of 2.0 people per square mile.

Demographics

419

Population

10th percentile

$23,317

Median Income

$32,200

Median Home Value

177.27 mi²

Land Area

The median household income in 85371 is $23,317, and the median home value is $32,200.

Housing

146

Total Units

130

Occupied Units

89.0%

Occupancy Rate

Similar ZIP Codes in Arizona

ZIP codes with similar median household income in Arizona.

85004

Phoenix

$26,008

 85006

Phoenix

$22,957

 85007

Phoenix

$28,125

 85009

Phoenix

$22,725

 85017

Phoenix

$27,782

 85031

Phoenix

$26,187

 85034

Phoenix

$19,509

 85147

Sacaton

$27,163

Frequently Asked Questions

What information is available for each ZIP code?
Each ZIP code page shows city, state, county, geographic coordinates, timezone, population, median household income, median home value, housing units, land area, population density, commute time, educational attainment, area codes, and ZIP code type (Standard, PO Box, or Unique).
What are the different types of ZIP codes?
There are three types of ZIP codes: Standard (residential and commercial delivery areas), PO Box (assigned to post office box sections), and Unique (assigned to a single high-volume address like a government agency or large company). Standard ZIP codes are the most common.
How often is ZIP code data updated?
ZIP code assignments are updated quarterly by the USPS. Demographic data comes from the US Census Bureau's American Community Survey (ACS), which releases new 5-year estimates annually. ZipFYI updates its data to reflect the latest available information.
What is population density and why does it matter?
Population density measures the number of people per square mile in a ZIP code area. It helps identify urban vs. rural areas, affects real estate values, impacts service availability, and is used in market analysis. Dense urban ZIP codes may have 50,000+ people per square mile.
How are ZIP code boundaries determined?
ZIP code boundaries are determined by the USPS based on mail delivery routes, not political or geographic boundaries. They follow carrier routes and may cross city, county, or even state lines. Boundaries can change when the USPS reorganizes delivery operations.
What does median household income tell me about a ZIP code?
Median household income is the middle value when all household incomes in a ZIP code are sorted. Half of households earn more and half earn less. It is a better indicator of typical earnings than average income, which can be skewed by very high or very low outliers.