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US ZIP Code Profile

ZIP Code 98104
Seattle, Washington

ZIP code 98104 is in Seattle, located in King County, Washington, within the Seattle-Tacoma-Bellevue metro area. Its 2020 Census population was 16,157. The estimated median adjusted gross income per tax return is $60,645, and about 13% of filers report $200,000 or more.

2020 Population
16,157
Census ZCTA
County
King
FIPS 53033
Median income (est.)
$60,645
IRS SOI 2022
Land Area
0.774 mi²
+ 0.098 mi² water

01Location & Geography

Authoritative geographic identifiers from the U.S. Census Bureau, ANSI, and FIPS standards.

Primary CitySeattle, WA
CountyKing County (FIPS 53033)
StateWashington (FIPS 53)
Metro Area (MSA)Seattle-Tacoma-Bellevue, WA Metro Area (42660)
Census Region / DivisionWest Region · Pacific Division
Coordinates47.601883, -122.32945
Land / Water Area0.774 mi² land · 0.098 mi² water

02Income & Economics

Distribution of the 7,970 individual tax returns filed in 98104 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
21.2%
$25K–$50K
22.0%
$50K–$75K
16.1%
$75K–$100K
9.9%
$100K–$200K
17.9%
$200K+
12.9%
The $200,000+ bracket accounts for 57% of 98104's total adjusted gross income, from 13% of returns — a concentration that drives the gap between the median ($60,645) and the average.
Estimated median = median adjusted gross income per tax return, interpolated from IRS SOI brackets. Differs from U.S. Census household income.

03Income Over Time

Year-over-year change in 98104's IRS income metrics, 2020–2022.

Median income (2021→2022)
$60,645
▲ 4.9%
Filers earning $200K+
12.9%
▼ 0.2 pt
Total filers
7,970
▲ 6.8%
GET /zipc/v2/zipcodes/98104/soi?year=… $49K 2020 $58K 2021 $61K 2022
Median = adjusted gross income per return, interpolated from IRS SOI brackets. Figures are nominal (not inflation-adjusted).

04Population Trend

Decennial U.S. Census population for the 98104 ZCTA.

2000
13,095
 
2010
13,095
▲ +0.0%
2020
16,157
▲ +23.4%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 98104. Powered by the same radius endpoint developers call from the API.

GET /zipc/v2/radius

ZIP codes within range of 98104

Seattle and its immediate neighbors, sorted by distance.

3 mi
GET /zipc/v2/distance

Distance from 98104 to any ZIP

Enter a 5-digit ZIP to calculate the distance.

06USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortD
USPS Finance Number547616
City AliasesInternational, Pioneer Square, Seattle

07Frequently Asked Questions

What county is ZIP code 98104 in?

ZIP code 98104 is in King County, Washington (county FIPS code 53033).

What city is ZIP code 98104?

The primary USPS city for 98104 is Seattle, WA.

What metro area (MSA) is 98104 in?

98104 is part of the Seattle-Tacoma-Bellevue, WA Metro Area (MSA code 42660).

What is the population of ZIP code 98104?

The 2020 Census population of 98104 was 16,157 residents.

What is the median income in ZIP code 98104?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 98104 is about $60,645, with around 13% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.