🇺🇸 United States ZIP Code

STANDARD

99402

Asotin

ZIP Code 99402 is a standard zip code serving Asotin, Asotin, Washington (WA), in Asotin County, United States. It has an estimated population of 1,875 with a median household income of $49,205. The area falls within the America/Los_Angeles timezone.

Median Household Income vs. National Average

Location

Country: 🇺🇸 United States
State / Province: Washington (WA)
County: Asotin
City: Asotin
Timezone: America/Los_Angeles

Coordinates

Latitude: 46.134300
Longitude: -117.001500

Geographic Details

Land Area: 286.46 mi²
Water Area: 1.80 mi²
Population Density: 7.0 people per mi² (10th percentile)
Bounding Box: 46.348450°N, 45.995375°S, -116.915580°E, -117.419669°W

With 1,875 residents spread across 286.46 square miles, this area has a population density of 7.0 people per square mile.

Demographics

1,875

Population

40th percentile

$49,205

Median Income

50th percentile

$263,600

Median Home Value

80th percentile

286.46 mi²

Land Area

The median household income in 99402 is $49,205, and the median home value is $263,600.

Housing

849

Total Units

740

Occupied Units

87.2%

Occupancy Rate

Similar ZIP Codes in Washington

ZIP codes with similar median household income in Washington.

98846

Pateros

$45,625

99347

Pomeroy

$51,637

98588

Tahuya

$52,750

98541

Elma

$48,202

99030

Rockford

$56,053

98168

Seattle

$49,233

98003

Federal Way

$45,894

99224

Spokane

$56,172

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.