Residential delivery area · Washington
ZIP Code 98121: Seattle, WA
ZIP code 98121 is in Seattle, Washington, entirely in King County (Census 2020 ZIP-county file). About 21,000 people live there (Census Bureau, ACS 2020-2024), the 27th most populous of Seattle's 38 residential ZIP codes. Median household income is $152,019 (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
- ZBP2023
- IRS2022
- Town
- Seattle · 38 residential ZIPs
- County
- King County
- Census places
- Seattle
- Neighborhood
- Belltown GeoNames
- Metro area
- Seattle-Tacoma-Bellevue, WA
- House district
- WA-7 119th Congress
- State
- Washington
- Time zone
- Pacific
- Land area
- 0.4 sq mi · 47,671 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 98121?
98121 centers on 47.615°, -122.351° and covers 0.4 square miles of land plus 0.2 of water. It borders 3 ZIP codes: 98101, 98109, 98119.
The map draws ZIP code areas only. For the streets inside 98121, 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); neighborhoods from the GeoNames gazetteer (CC BY 4.0), placed in this ZIP code by PlainZIP.
How does 98121 compare with the rest of Seattle?
| Measure | 98121 | In Seattle | In King County | In WA |
|---|---|---|---|---|
| People (ACS 2020-2024) | 21,166 | 27th of 38 | 60th of 89 | 172nd of 605 |
| Median household income | $152k | 6th of 32 | 27th of 78 | 31st of 363 |
| Median home value | $848k | 17th of 32 | 41st of 78 | 48th of 392 |
Its median household income is higher than in 96% of U.S. residential ZIP codes, and it is denser than more than 99% 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 98121?
The 2020 Census counted 21,411 people in 98121; the ACS, which samples households over 2020-2024, estimates 21,166. Between the 2010 and 2020 censuses its population grew 69.6% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 21,166
- 2020 Census count
- 21,411+69.6% since 2010 (12,628)
- Households
- 14,288
- Median age
- 33.2
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 98121?
Of the 21,166 people the ACS estimates in 98121, 1.9% are under 18 and 10.6% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (45.0%), then Asian (not Hispanic) (36.6%).
- Under 181.9%
- 18 to 6487.5%
- 65 and older10.6%
- White, not Hispanic45.0%
- Asian, not Hispanic36.6%
- Other or two or more7.8%
- Hispanic or Latino6.6%
- Black, not Hispanic4.0%
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 98121 earn?
Median household income is $152,019 (ACS 2020-2024), the 27th highest of the 78 ranked ZIP codes in King County. It is not measurably different from 2015-2019 ($141,500 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $152,019
- Income per person
- $125,577
- Below the poverty line
- 8.7%
- Unemployed (of the labor force)
- 4.1%
- Adults 25+ with a bachelor's degree
- 78.9%
- Adjusted gross income per tax return, 2022
- $193,32313,310 returns; wages 78% 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 98121?
- Median home value (owners' estimate)
- $848,400
- Median gross rent
- $2,337
- Homes owned by their occupants
- 22.6%
- Housing units
- 16,684
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001).
What businesses are in 98121?
1,199 business establishments had a location in this ZIP code in 2023, 61 fewer than in 2018; the most are in professional, scientific, and technical services (ZIP Code Business Patterns).
- Professional, scientific, and technical services291
- Accommodation and food services170
- Other services (except public administration)120
- Real estate and rental and leasing109
- Information95
- Health care and social assistance82
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 98121?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 98101 | Seattle | 17,153 | $129k | 0.7 mi |
| 98109 | Seattle | 34,328 | $134k | 1.1 mi |
| 98119 | Seattle | 26,879 | $124k | 1.7 mi |
| 98154 | Seattle | 0 | – | 1.0 mi (near) |
| 98174 | Seattle | 0 | – | 1.0 mi (near) |
| 98164 | Seattle | 292 | $250k+ | 1.1 mi (near) |
| 98104 | Seattle | 16,542 | $62k | 1.3 mi (near) |
| 98102 | Seattle | 27,333 | $115k | 1.8 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.