🇺🇸 United States ZIP Code

STANDARD

99163

Pullman

ZIP Code 99163 is a standard zip code serving Pullman, Pullman, Washington (WA), in Whitman County, United States. It has an estimated population of 31,404 with a median household income of $27,177. The area falls within the America/Los_Angeles timezone.

Median Household Income vs. National Average

Location

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

Coordinates

Latitude: 46.735200
Longitude: -117.172900

Geographic Details

Land Area: 207.00 mi²
Water Area: 0.41 mi²
Population Density: 152.0 people per mi² (55th percentile)
Bounding Box: 46.853590°N, 46.612170°S, -117.039413°E, -117.468145°W

With 31,404 residents spread across 207.00 square miles, this area has a population density of 152.0 people per square mile.

Demographics

31,404

Population

90th percentile

$27,177

Median Income

5th percentile

$223,000

Median Home Value

75th percentile

207.00 mi²

Land Area

The median household income in 99163 is $27,177, and the median home value is $223,000. This is below the national average for household income.

Housing

12,672

Total Units

11,679

Occupied Units

92.2%

Occupancy Rate

Nearby ZIP Codes

Other zip codes in Pullman, WA.

99164

Pullman

Similar ZIP Codes in Washington

ZIP codes with similar median household income in Washington.

99155

Nespelem

$25,435

98547

Grayland

$27,924

98851

Soap Lake

$30,884

98339

Port Hadlock

$30,932

99204

Spokane

$26,966

99201

Spokane

$24,532

99138

Inchelium

$27,500

98844

Oroville

$32,158

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.