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US ZIP Code Profile

ZIP Code 98103
Seattle, Washington

ZIP code 98103 is in Seattle, located in King County, Washington, within the Seattle-Tacoma-Bellevue metro area. Its 2020 Census population was 53,056. The estimated median adjusted gross income per tax return is $91,239, and about 22% of filers report $200,000 or more.

2020 Population
53,056
Census ZCTA
County
King
FIPS 53033
Median income (est.)
$91,239
IRS SOI 2022
Land Area
4.647 mi²
+ 0.647 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
Coordinates47.68309, -122.33787
Land / Water Area4.647 mi² land · 0.647 mi² water

02Income & Economics

Distribution of the 30,420 individual tax returns filed in 98103 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
12.3%
$25K–$50K
14.6%
$50K–$75K
15.6%
$75K–$100K
11.5%
$100K–$200K
23.8%
$200K+
22.2%
The $200,000+ bracket accounts for 62% of 98103's total adjusted gross income, from 22% of returns — a concentration that drives the gap between the median ($91,239) 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 98103's IRS income metrics, 2020–2022.

Median income (2021→2022)
$91,239
▲ 5.1%
Filers earning $200K+
22.2%
▲ 0.2 pt
Total filers
30,420
▲ 1.4%
GET /zipc/v2/zipcodes/98103/soi?year=… $78K 2020 $87K 2021 $91K 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 98103 ZCTA.

2000
41,971
 
2010
45,911
▲ +9.4%
2020
53,056
▲ +15.6%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 98103. Powered by the same radius endpoint developers call from the API.

GET /zipc/v2/radius

ZIP codes within range of 98103

Seattle and its immediate neighbors, sorted by distance.

3 mi
GET /zipc/v2/distance

Distance from 98103 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 AliasesGreenwood, Seattle, Wallingford

07Frequently Asked Questions

What county is ZIP code 98103 in?

ZIP code 98103 is in King County, Washington (county FIPS code 53033).

What city is ZIP code 98103?

The primary USPS city for 98103 is Seattle, WA.

What metro area (MSA) is 98103 in?

98103 is part of the Seattle-Tacoma-Bellevue, WA Metro Area (MSA code 42660).

What is the population of ZIP code 98103?

The 2020 Census population of 98103 was 53,056 residents.

What is the median income in ZIP code 98103?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 98103 is about $91,239, with around 22% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.