Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — ZIP/98103

98103

ZIP 98103 is in Seattle, Washington, in King County; area code 206; Pacific time. Seattle has 59 ZIP codes in all.

Type
Standard
Time zone
America/Los_Angeles
County
King
Population
52,671
Coordinates
47.6739, -122.3347
☼ Live from 98103 — Seattle, WA

Weather right now

Asking the National Weather Service…

NEXRAD radar
Finding the nearest radar…
Local time: —

Where 98103 is

Approximate ZIP boundary (Census ZCTA 2020). ZIP codes are mail routes, not areas, so the shape shown is the Census tabulation area that approximates it.

★ Weird and wonderful facts about 98103
  • 🔢 Type 98103 into a pocket calculator and turn it upside down: EOIBG — not quite a word, sorry.
  • ➕ As a number, 98,103 = 3 × 53 × 617. Its digits add up to 21, a total 2,594 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10111111100110111
  • 🏠 Its numerical neighbours: 98102 (Seattle, WA, 3 mi away) and 98104 (Seattle, WA, 5 mi away).
  • 🔄 Backwards, 98103 becomes 30189 — and that is a real ZIP code: Woodstock, GA, 2,155 miles away.
  • 👥 47 other ZIP codes are made of exactly the same digits (01938, 01983, 03819, 08319, 09138, 09183, …). The farthest-flung twin is 09831 in APO AE, a military post office, 8,997 miles away.
  • 🧭 Farther north than 97% of all ZIP codes, and farther west than 96%.
  • 🎯1,297 miles northwest of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 98103 and you would come out at 47.67°S, 57.67°E — 585 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 16h 00m of daylight. Shortest: 8h 25m.
  • 📏 At 4.6 square miles of land, 98103 is bigger than 18% of ZIP codes — room for about 3.5 Central Parks.
🌙 The sky over 98103 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population52,671This ZIP52,671
Households26,873This ZIP26,873
Housing units28,631This ZIP28,631
Median age34.5This ZIP34.5Washington38.3US 38.9
Median household income$131,154This ZIP$131,154Washington$98,141US $80,734
Median home value$1,044,100This ZIP$1,044,100Washington$564,600US $332,700
Median gross rent$2,032This ZIP$2,032Washington$1,760US $1,413
Bachelor's degree or higher78.6%This ZIP78.6%
Mean commute25.3 minThis ZIP25.3 min
Population density11,475.2 / sq miThis ZIP11,475.2 / sq mi

Business and tax activity

Business establishments1,982This ZIP1,982
Employees25,838This ZIP25,838
Annual payroll$4,226,493,000This ZIP$4,226,493,000
Tax returns filed30,420This ZIP30,420
Total adjusted gross income$4,879,189,000This ZIP$4,879,189,000

Land area

Land area4.59 sq miThis ZIP4.59 sq mi
Water area0.64 sq miThis ZIP0.64 sq mi

Other place names in 98103

Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.

ZIP codes near 98103

ZIPCityDistance
98113 Seattle, WA 0.3 mi
98195 Seattle, WA 1.8 mi
98107 Seattle, WA 2.0 mi
98105 Seattle, WA 2.5 mi
98115 Seattle, WA 2.5 mi
98117 Seattle, WA 2.6 mi
98102 Seattle, WA 2.8 mi
98109 Seattle, WA 3.0 mi
98119 Seattle, WA 3.0 mi
98165 Seattle, WA 3.3 mi

Find every ZIP code within 10 miles of 98103 →

Questions about this ZIP code

Where is ZIP code 98103?

98103 is in Seattle, Washington, in King County, part of the Seattle-Tacoma-Bellevue, WA metropolitan area. Its published point location is 47.6739, -122.3347.

What county is 98103 in?

98103 lies in King County.

What area code is 98103?

Seattle uses area code 206, from NANPA's telephone records.

What time zone is 98103 in?

98103 uses America/Los_Angeles.

How many people live in 98103?

About 52,671 people live in ZIP code 98103, in 26,873 households, at 11,475.2 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.

What is the median household income in 98103?

$131,154 a year, against $98,141 across Washington.

What ZIP codes are near 98103?

The closest are 98113 (0.3 mi), 98195 (1.8 mi), 98107 (2 mi), 98105 (2.5 mi) and 98115 (2.5 mi).

Is 98103 a PO Box ZIP code?

98103 is a standard ZIP code. A normal ZIP code with street delivery.

Download or cite

Cite this page

zipcodes.pro. “98103 ZIP Code — Seattle, Washington (King County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/98103

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/98103.json

Underlying data is public domain or openly licensed — sources, vintages and licences.