Residential delivery area · Washington
ZIP Code 98198: Seattle, WA
ZIP code 98198 uses the postal name Seattle, Washington and lies entirely in King County (Census 2020 ZIP-county file). About 40,000 people live there (Census Bureau, ACS 2020-2024), the 8th most populous of Seattle's 38 residential ZIP codes. Median household income is $86,239 (Census Bureau, ACS 2020-2024). Most of its land (78%) lies in the city of Des Moines.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Seattle · 38 residential ZIPs
- County
- King County
- Census places
- Des Moines (78%); SeaTac (21%)
- Metro area
- Seattle-Tacoma-Bellevue, WA
- House district
- WA-9 119th Congress
- State
- Washington
- Time zone
- Pacific
- Land area
- 7.7 sq mi · 5,237 people per sq mi
- PO Box ZIPs
- 21 more ZIP codes use the name Seattle for PO boxes or single organizations
Where is ZIP code 98198?
98198 centers on 47.391°, -122.315° and covers 7.7 square miles of land plus 0.9 of water. It borders 6 ZIP codes: 98032, 98148, 98188, 98166, 98003, 98023.
The map draws ZIP code areas only. For the streets inside 98198, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 98198 compare with the rest of Seattle?
| Measure | 98198 | In Seattle | In King County | In WA |
|---|---|---|---|---|
| People (ACS 2020-2024) | 40,463 | 8th of 38 | 18th of 89 | 47th of 605 |
| Median household income | $86k | 29th of 32 | 71st of 78 | 217th of 363 |
| Median home value | $590k | 30th of 32 | 69th of 78 | 139th of 392 |
Its median household income is higher than in 69% of U.S. residential ZIP codes, and it is denser than 94% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 98198?
The 2020 Census counted 38,727 people in 98198; the ACS, which samples households over 2020-2024, estimates 40,463. Between the 2010 and 2020 censuses its population grew 12.0% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 40,463
- 2020 Census count
- 38,727+12.0% since 2010 (34,584)
- Households
- 14,588
- Median age
- 36.1
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 98198?
Of the 40,463 people the ACS estimates in 98198, 22.3% are under 18 and 15.8% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (38.8%), then Hispanic or Latino (22.5%).
- Under 1822.3%
- 18 to 6461.9%
- 65 and older15.8%
- White, not Hispanic38.8%
- Hispanic or Latino22.5%
- Black, not Hispanic14.1%
- Asian, not Hispanic13.7%
- Other or two or more11.0%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 98198 earn?
Median household income is $86,239 (ACS 2020-2024), the 71st highest of the 78 ranked ZIP codes in King County. It is not measurably different from 2015-2019 ($82,093 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $86,239
- Income per person
- $41,819
- Below the poverty line
- 12.9%
- Unemployed (of the labor force)
- 7.2%
- Adults 25+ with a bachelor's degree
- 30.8%
- Adjusted gross income per tax return, 2022
- $81,56118,780 returns; wages 70% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 98198?
FHFA's house price index for 98198, built from repeat sales and appraisals of the same homes, rose 123% from 2015 to 2025 and rose 48% from 2020 to 2025, and moved +2.5% in 2025.
- Median home value (owners' estimate)
- $589,500
- Median gross rent
- $1,814
- Homes owned by their occupants
- 54.8%
- Housing units
- 15,275
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 98198?
653 business establishments had a location in this ZIP code in 2023, 77 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction99
- Health care and social assistance88
- Other services (except public administration)81
- Accommodation and food services66
- Retail trade58
- Professional, scientific, and technical services50
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 98198?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 98032 | Kent | 40,862 | $83k | 2.7 mi |
| 98148 | Seattle | 9,715 | $87k | 3.7 mi |
| 98188 | Seattle | 27,311 | $76k | 4.3 mi |
| 98166 | Seattle | 22,082 | $115k | 4.5 mi |
| 98003 | Federal Way | 51,619 | $75k | 6.0 mi |
| 98023 | Federal Way | 50,448 | $105k | 6.0 mi |
| 98158 | Seattle | 0 | – | 4.1 mi (near) |
| 98030 | Kent | 38,523 | $92k | 5.7 mi (near) |
| 98031 | Kent | 40,094 | $106k | 5.8 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.