🇺🇸 United States ZIP Code

STANDARD

98031

Kent

ZIP Code 98031 is a standard zip code serving Kent, Kent, Washington (WA), in King County, United States. It has an estimated population of 36,581 with a median household income of $63,709. The area falls within the America/Los_Angeles timezone.

Median Household Income vs. National Average

Location

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

Coordinates

Latitude: 47.388000
Longitude: -122.193200

Geographic Details

Land Area: 7.50 mi²
Water Area: 0.10 mi²
Population Density: 4877.0 people per mi² (90th percentile)
Bounding Box: 47.432164°N, 47.379656°S, -122.161506°E, -122.231109°W

With 36,581 residents spread across 7.50 square miles, this area has a population density of 4877.0 people per square mile.

Demographics

36,581

Population

90th percentile

$63,709

Median Income

75th percentile

$271,500

Median Home Value

85th percentile

7.50 mi²

Land Area

The median household income in 98031 is $63,709, and the median home value is $271,500. This places the area in the top 25% nationally for household income.

Housing

12,846

Total Units

12,242

Occupied Units

95.3%

Occupancy Rate

Nearby ZIP Codes

Other zip codes in Kent, WA.

98030

Kent

98032

Kent

98035

Kent

98042

Kent

98064

Kent

98089

Kent

Similar ZIP Codes in Washington

ZIP codes with similar median household income in Washington.

98603

Ariel

$58,094

98611

Castle Rock

$57,532

98683

Vancouver

$54,168

98684

Vancouver

$58,549

98936

Moxee

$57,841

98294

Sultan

$60,707

98043

Mountlake Terrace

$58,865

98321

Buckley

$70,123

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.