Zip Code 98031
Kent, Washington — King County
📍 ZIP code 98031 is in Kent, King County, Washington.
ZIP code 98031 is located in Kent, King County, Washington. It is a zip code in the Pacific (PST/PDT) Time Zone with an estimated population of 40,898. The area code for ZIP code 98031 is 206.
Quick Answer
Zip code 98031 is in Kent, Washington (King County). It has a population of 40,898, median household income of $101,458, and median home value of $552,300.
Population
40,898
Income
$101,458
Home Value
$552,300
Climate
78°F / 36°F
About Zip Code 98031
Zip code 98031 is located in Kent, Washington, within King County. Home to approximately 40,898 residents, this area sits at an elevation of 446 ft and falls within the Pacific (PST/PDT) timezone. The local area code is 206.
The median household income is $101,458 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $552,300, and the cost of living index is 159 (59% above the national average of 100).
Summers average a high of 78°F while winters drop to 36°F. The area receives about 40 in of rain and 4 in of snow annually. The zip code covers 7.5 square miles of land area and 0.1 square miles of water.
Key Statistics
40,898
$101,458
$552,300
Pacific (PST/PDT)
206
446 ft
7.5 sq mi
36.8
14,342
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Compare With Nearby Zip Codes
| Metric | 98031 | 98055 | 98032 | 98058 | 98042 | 98188 |
|---|---|---|---|---|---|---|
| City | Kent, WA | Renton, WA | Kent, WA | Renton, WA | Covington, WA | Seatac, WA |
| Population | 40,898 | 24,851 | 40,150 | 41,980 | 48,594 | 26,769 |
| Median Income | $101,458 | $100,207 | $77,413 | $111,045 | $125,554 | $76,559 |
| Home Value | $552,300 | $561,600 | $473,000 | $627,200 | $613,000 | $452,900 |
| Cost of Living | 159 | 155 | 134 | 182 | 187 | 134 |
| Median Age | 36.8 | 34.6 | 32.7 | 38.4 | 40 | 36.8 |
Cost of Living
100 = National Average. Kent's cost of living is 59% above the national average.
vs. State Avg
Above
Affordability
Expensive
Income-to-Home
5.4x
Demographics
Zip code 98031 has a population of 40,898 people with a median age of 36.8. There are 14,342 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Kent (98031) population trend from 2010 to 2024
↓ -25.3%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
78°F
36°F
40 in
4 in
Kent experiences mild summers with average highs around 78°F. Winters are mild with lows averaging 36°F. The area receives about 4 in of snow per year.
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Housing & Economy
Median Home Value
$552,300
Median Household Income
$101,458
With 14,342 housing units across 7.5 square miles, 98031 has a housing density of 1,912 units per square mile. The home price-to-income ratio is 5.4x.
Location & Geography
Latitude
47.4055°
Longitude
-122.1958°
Land Area
7.5 sq mi
Water Area
0.1 sq mi
Nearby Zip Codes
Zip codes closest to 98031 (Kent, WA) with distances:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 98031's $101,458. A way to compare Kent to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 98031 (Kent, WA). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
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People Also Ask
What zip code is Kent, Washington?
Kent, Washington uses zip code 98031.
What county is zip code 98031 in?
Zip code 98031 is located in King County, Washington.
What is the population of zip code 98031?
The population of zip code 98031 is 40,898 with a median age of 36.8.
Is 98031 in Kent, Washington?
Yes, zip code 98031 is in Kent, King County, Washington. The area code is 206.
Frequently Asked Questions
What city is zip code 98031 in?
Zip code 98031 is in Kent, Washington. It is part of King County and uses the Pacific (PST/PDT) timezone.
What is zip code 98031?
Zip code 98031 is a U.S. postal code in Kent, Washington (King County). It has a population of 40,898 and covers 7.5 square miles.
What is the population of zip code 98031?
The population of zip code 98031 (Kent, WA) is 40,898 with a median age of 36.8. There are approximately 14,342 housing units in this area.
What is the median income in zip code 98031?
The median household income in zip code 98031 (Kent, WA) is $101,458 per year. The cost of living index is 159 (100 = national average).
What is the average home price in zip code 98031?
The median home value in zip code 98031 (Kent, WA) is $552,300. The cost of living index is 159 compared to the national average of 100.
What county is zip code 98031 in?
Zip code 98031 is located in King County, Washington. The primary city is Kent.
What is the area code for zip code 98031?
Zip code 98031 in Kent, WA uses area code 206. It is located in the Pacific (PST/PDT) timezone.
Is zip code 98031 a good place to live?
Zip code 98031 (Kent, WA) has a cost of living index of 159 (100 = national average), a median household income of $101,458, and median home values of $552,300. The median age is 36.8. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 98031?
The cost of living index for zip code 98031 (Kent, WA) is 159, where 100 represents the national average. This area is above the national average. Median home value: $552,300.
What schools serve zip code 98031?
Zip code 98031 in Kent, Washington is served by the local school district of King County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.