🇺🇸 United States ZIP Code

STANDARD

98580

Roy

ZIP Code 98580 is a standard zip code serving Roy, Roy, Washington (WA), in Pierce County, United States. It has an estimated population of 11,099 with a median household income of $62,676. The area falls within the America/Los_Angeles timezone.

Median Household Income vs. National Average

Location

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

Coordinates

Latitude: 46.956000
Longitude: -122.448300

Geographic Details

Land Area: 140.84 mi²
Water Area: 1.99 mi²
Population Density: 79.0 people per mi² (45th percentile)
Bounding Box: 47.119522°N, 46.849720°S, -122.375563°E, -122.703845°W

With 11,099 residents spread across 140.84 square miles, this area has a population density of 79.0 people per square mile.

Demographics

11,099

Population

70th percentile

$62,676

Median Income

75th percentile

$244,400

Median Home Value

80th percentile

140.84 mi²

Land Area

The median household income in 98580 is $62,676, and the median home value is $244,400. This places the area in the top 25% nationally for household income.

Housing

4,331

Total Units

4,042

Occupied Units

93.3%

Occupancy Rate

Similar ZIP Codes in Washington

ZIP codes with similar median household income in Washington.

98516

Olympia

$66,466

98933

Harrah

$53,462

98146

Seattle

$56,809

98684

Vancouver

$58,549

98119

Seattle

$68,383

98294

Sultan

$60,707

98338

Graham

$67,680

98592

Union

$63,363

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.