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US ZIP Code Profile

ZIP Code 98105
Seattle, Washington

ZIP code 98105 is in Seattle, located in King County, Washington, within the Seattle-Tacoma-Bellevue metro area. Its 2020 Census population was 49,151. The estimated median adjusted gross income per tax return is $57,065, and about 21% of filers report $200,000 or more.

2020 Population
49,151
Census ZCTA
County
King
FIPS 53033
Median income (est.)
$57,065
IRS SOI 2022
Land Area
4.128 mi²
+ 2.355 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
Coordinates47.659863, -122.28498
Land / Water Area4.128 mi² land · 2.355 mi² water

02Income & Economics

Distribution of the 17,690 individual tax returns filed in 98105 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
27.5%
$25K–$50K
19.2%
$50K–$75K
11.7%
$75K–$100K
6.8%
$100K–$200K
14.2%
$200K+
20.6%
The $200,000+ bracket accounts for 75% of 98105's total adjusted gross income, from 21% of returns — a concentration that drives the gap between the median ($57,065) 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 98105's IRS income metrics, 2020–2022.

Median income (2021→2022)
$57,065
▲ 3.1%
Filers earning $200K+
20.6%
▼ 0.5 pt
Total filers
17,690
▲ 3.5%
GET /zipc/v2/zipcodes/98105/soi?year=… $51K 2020 $55K 2021 $57K 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 98105 ZCTA.

2000
38,963
 
2010
43,924
▲ +12.7%
2020
49,151
▲ +11.9%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 98105. Powered by the same radius endpoint developers call from the API.

GET /zipc/v2/radius

ZIP codes within range of 98105

Seattle and its immediate neighbors, sorted by distance.

3 mi
GET /zipc/v2/distance

Distance from 98105 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 AliasesSeattle, University

07Frequently Asked Questions

What county is ZIP code 98105 in?

ZIP code 98105 is in King County, Washington (county FIPS code 53033).

What city is ZIP code 98105?

The primary USPS city for 98105 is Seattle, WA.

What metro area (MSA) is 98105 in?

98105 is part of the Seattle-Tacoma-Bellevue, WA Metro Area (MSA code 42660).

What is the population of ZIP code 98105?

The 2020 Census population of 98105 was 49,151 residents.

What is the median income in ZIP code 98105?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 98105 is about $57,065, with around 21% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.