🇺🇸 United States ZIP Code

STANDARD

99036

Valleyford

ZIP Code 99036 is a standard zip code serving Valleyford, Valleyford, Washington (WA), in Spokane County, United States. It has an estimated population of 1,448 with a median household income of $89,306. The area falls within the America/Los_Angeles timezone.

Median Household Income vs. National Average

Location

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

Coordinates

Latitude: 47.529200
Longitude: -117.268600

Geographic Details

Land Area: 40.89 mi²
Population Density: 35.0 people per mi² (30th percentile)
Bounding Box: 47.594389°N, 47.477859°S, -117.151629°E, -117.370343°W

With 1,448 residents spread across 40.89 square miles, this area has a population density of 35.0 people per square mile.

Demographics

1,448

Population

30th percentile

$89,306

Median Income

90th percentile

$307,300

Median Home Value

85th percentile

40.89 mi²

Land Area

The median household income in 99036 is $89,306, and the median home value is $307,300. This places the area in the top 25% nationally for household income.

Housing

568

Total Units

538

Occupied Units

94.7%

Occupancy Rate

Similar ZIP Codes in Washington

ZIP codes with similar median household income in Washington.

98642

Ridgefield

$78,108

99005

Colbert

$90,000

98258

Lake Stevens

$77,590

98051

Ravensdale

$77,623

98685

Vancouver

$77,231

98177

Seattle

$95,648

98059

Renton

$91,465

98332

Gig Harbor

$86,174

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.