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US ZIP Code Profile

ZIP Code 98177
Seattle, Washington

ZIP code 98177 is in Seattle, located in King County, Washington, within the Seattle-Tacoma-Bellevue metro area. Its 2020 Census population was 20,160. The estimated median adjusted gross income per tax return is $109,483, and about 30% of filers report $200,000 or more.

2020 Population
20,160
Census ZCTA
County
King
FIPS 53033
Median income (est.)
$109,483
IRS SOI 2022
Land Area
5.665 mi²
+ 1.409 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
Coordinates47.74231, -122.37663
Land / Water Area5.665 mi² land · 1.409 mi² water

02Income & Economics

Distribution of the 10,380 individual tax returns filed in 98177 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
16.4%
$25K–$50K
11.7%
$50K–$75K
10.9%
$75K–$100K
9.0%
$100K–$200K
22.4%
$200K+
29.8%
The $200,000+ bracket accounts for 77% of 98177's total adjusted gross income, from 30% of returns — a concentration that drives the gap between the median ($109,483) 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 98177's IRS income metrics, 2020–2022.

Median income (2021→2022)
$109,483
▲ 1.6%
Filers earning $200K+
29.8%
▲ 0.5 pt
Total filers
10,380
▲ 1.0%
GET /zipc/v2/zipcodes/98177/soi?year=… $94K 2020 $108K 2021 $109K 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 98177 ZCTA.

2000
18,920
 
2010
19,030
▲ +0.6%
2020
20,160
▲ +5.9%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 98177. Powered by the same radius endpoint developers call from the API.

GET /zipc/v2/radius

ZIP codes within range of 98177

Seattle and its immediate neighbors, sorted by distance.

3 mi
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Distance from 98177 to any ZIP

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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 AliasesBitter Lake, Richmond Beach, Seattle, The Highlands, Shoreline

07Frequently Asked Questions

What county is ZIP code 98177 in?

ZIP code 98177 is in King County, Washington (county FIPS code 53033).

What city is ZIP code 98177?

The primary USPS city for 98177 is Seattle, WA.

What metro area (MSA) is 98177 in?

98177 is part of the Seattle-Tacoma-Bellevue, WA Metro Area (MSA code 42660).

What is the population of ZIP code 98177?

The 2020 Census population of 98177 was 20,160 residents.

What is the median income in ZIP code 98177?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 98177 is about $109,483, with around 30% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.