US ZIP Code
98121

Seattle, WA

King County  ·  Washington

● Active
👥 20,904 Population ↑ 7% since 2019
💰 $148,974 Median HH Income
▲ 95% above avg ↑ 29% since 2019
🎂 33.3 Median Age
🏠 $796,600 Median Home Value
▲ 186% above avg ↑ 30% since 2019
🎓 81.9% College Grads
▲ 111% above avg
📊 4.1% Unemployment
▼ 16% below avg ↑ 19% since 2019
ZIP Code Details
ZIP Code98121
CitySeattle
StateWashington (WA)
CountyKing County
Area Code206/360/425/564
Elevation101 ft
Latitude47.615192
Longitude-122.350581
TimezoneLos Angeles (DST)
FIPS53033
ZIP TypeStandard
StatusActive
People & Population (ACS 2023)
♂ Male 53.8% (11,244) Female 46.2% (9,660) ♀

Race & Ethnicity

White: 47.3%Hispanic: 7.9%Black: 3.2%Asian: 34.4%Other: 5.4%Race
White47.3%
Hispanic7.9%
Black3.2%
Asian34.4%
Other5.4%

Age Breakdown

Under 5
1%
5–17
1%
18–24
6%
25–44
62%
45–64
19%
65+
6%

Key Indicators

Median Age33.3 yrs
Avg Household Size1.48
Below Poverty8.6% ▼ 14% below avg
College Grads81.9% ▲ 111% above avg
Unemployment4.1% ▼ 16% below avg
No HS Diploma52 (0.3%)
HS Graduate1,021 (5.6%)
Some College619 (3.4%)
Associates1,594 (8.8%)
Bachelors738 (4.1%)
Graduate Degree14,121 (77.8%)

Education

No HS: 0.3%HS Grad: 5.6%Some College: 3.4%Associates: 8.8%Bachelors: 4.1%Graduate: 77.8%Edu
No HS0.3%
HS Grad5.6%
Some College3.4%
Associates8.8%
Bachelors4.1%
Graduate77.8%
Housing & Income

Housing Tenure

Owner: 25.2%Renter: 74.8%Tenure
Owner25.2%
Renter74.8%

Home Value Distribution

$100k–150k
2%
$200k–300k
1%
$300k–500k
7%
Over $500k
90%

Financials

Median HH Income$148,974 ▲ 95% above avg ↑ 29% since 2019
Median Home Value$796,600 ▲ 186% above avg ↑ 30% since 2019
Home/Income Ratio5.3x (nat avg ~3.5x)
Median Rent$2,329/mo ↑ 18% since 2019
Total Units15,781
Vacant Units1,949
Avg HH Size1.48

Income Distribution

Under $25k
14%
$25k–50k
9%
$50k–75k
7%
$75k–100k
6%
$100k–150k
13%
$150k–200k
14%
Over $200k
37%
Employment & Commute

How People Get to Work

Drove Alone
16%
Public Transit
9%
Walked
31%
Work From Home
44%

Commute Time

Under 15 min
31%
15–30 min
42%
30–45 min
16%
Over 45 min
10%
Housing Stock

Year Built

1940s–1950s
0%
1960s–1970s
13%
1980s–1990s
27%
2000+
60%

Summary

Total Units15,781
Vacant1,949
Owner Occupied25.2%
Renter Occupied74.8%
Avg HH Size1.48
Frequently Asked Questions
ZIP code 98121 is in Seattle, WA, in King County.
ZIP code 98121 is located in Washington (WA).
ZIP code 98121 is in King County, WA.
ZIP 98121 observes the Los Angeles timezone. Daylight Saving Time is observed.
The estimated population of ZIP code 98121 is 20,904 people (ACS 2023).
The median household income in ZIP code 98121 is $148,974 (ACS 2023).
The median home value in ZIP 98121 is $796,600 (ACS 2023).
About ZIP Code 98121

ZIP code 98121 is located in Seattle, Washington, within King County. With a population of 20,904, this is a moderately populated ZIP code with a relatively young community — the median age is 33.3 years. Economically, 98121 is a upper-middle-income ZIP code: the median household income of $148,974 is significantly above the national average.

Real estate in ZIP code 98121 represents a premium housing market. The median home value of $796,600 is more than double the national average. Renters can expect to pay around $2,329 per month in median rent. This is predominantly a renter community, with 74.8% of occupied units rented — typical of urban and transitional neighborhoods. Median home values have increased by 30% since 2019.

The population of 98121 is racially diverse, with White as the largest group at 47.3%. Residents are highly educated — 81.9% hold a bachelor's degree or higher, which is more than double the national average. Poverty affects a relatively small share of residents at 8.6%. Household income has grown by 29% since 2019.

The unemployment rate in 98121 stands at 4.1%, which is below the national average. A notably high share of workers — 42% — work from home, reflecting the professional makeup of the area. As in most parts of the country, driving alone is the dominant commute mode at 16%.

Overall, ZIP code 98121 in Seattle, WA is characterized as upper-middle-income, highly educated, and a relatively young community. With 20,904 residents, a median household income of $148,974, and a median home value of $796,600, it offers a clear picture of life in this part of Washington.