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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/98003

98003

ZIP 98003 is in Federal Way, Washington, in King County; area codes 253 and 206; Pacific time. Federal Way has 4 ZIP codes; the others are 98023, 98063 and 98093.

Type
Standard
Time zone
America/Los_Angeles
County
King
Population
51,619
Coordinates
47.3052, -122.3142
☼ Live from 98003 — Federal Way, WA

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Where 98003 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 98003
  • 🔢 Type 98003 into a pocket calculator and turn it upside down: EOOBG — not quite a word, sorry.
  • ➕ As a number, 98,003 = 23 × 4261. Its digits add up to 20, a total 2,586 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10111111011010011
  • 🏠 Its numerical neighbours: 98002 (Auburn, WA, 5 mi away) and 98004 (Bellevue, WA, 22 mi away).
  • 🔄 Backwards, 98003 becomes 30089, which is not a ZIP code at all.
  • 👥 23 other ZIP codes are made of exactly the same digits (00938, 00983, 03809, 03890, 03908, 08039, …). The farthest-flung twin is 09803 in APO AE, a military post office, 7,416 miles away.
  • 🧭 Farther north than 96% of all ZIP codes, and farther west than 96%.
  • 🎯1,289 miles northwest of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 98003 and you would come out at 47.31°S, 57.69°E — 592 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 56m of daylight. Shortest: 8h 28m.
  • 📏 At 11.5 square miles of land, 98003 is bigger than 29% of ZIP codes — room for about 8.7 Central Parks.
🌙 The sky over 98003 today
  • Working out the sun…
🌋 Shake report
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Source: USGS.

People and housing

Population51,619This ZIP51,619
Households18,786This ZIP18,786
Housing units19,754This ZIP19,754
Median age35.7This ZIP35.7Washington38.3US 38.9
Median household income$75,319This ZIP$75,319Washington$98,141US $80,734
Median home value$476,600This ZIP$476,600Washington$564,600US $332,700
Median gross rent$1,723This ZIP$1,723Washington$1,760US $1,413
Bachelor's degree or higher27.6%This ZIP27.6%
Mean commute31.2 minThis ZIP31.2 min
Population density4,488.2 / sq miThis ZIP4,488.2 / sq mi

Business and tax activity

Business establishments1,768This ZIP1,768
Employees21,771This ZIP21,771
Annual payroll$1,212,130,000This ZIP$1,212,130,000
Tax returns filed22,640This ZIP22,640
Total adjusted gross income$1,565,693,000This ZIP$1,565,693,000

Land area

Land area11.50 sq miThis ZIP11.50 sq mi
Water area0.08 sq miThis ZIP0.08 sq mi

Other place names in 98003

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

ZIP codes near 98003

ZIPCityDistance
98063 Federal Way, WA 1.2 mi
98023 Federal Way, WA 2.3 mi
98001 Auburn, WA 2.4 mi
98354 Milton, WA 3.7 mi
98422 Tacoma, WA 3.8 mi
98071 Auburn, WA 4.0 mi
98047 Pacific, WA 4.4 mi
98002 Auburn, WA 4.6 mi
98421 Tacoma, WA 5.1 mi
98424 Tacoma, WA 5.2 mi

Find every ZIP code within 10 miles of 98003 →

Questions about this ZIP code

Where is ZIP code 98003?

98003 is in Federal Way, Washington, in King County, part of the Seattle-Tacoma-Bellevue, WA metropolitan area. Its published point location is 47.3052, -122.3142.

What county is 98003 in?

98003 lies in King County.

What area code is 98003?

Federal Way uses area codes 253 and 206, from NANPA's telephone records.

What time zone is 98003 in?

98003 uses America/Los_Angeles.

How many people live in 98003?

About 51,619 people live in ZIP code 98003, in 18,786 households, at 4,488.2 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 98003?

$75,319 a year, against $98,141 across Washington.

What ZIP codes are near 98003?

The closest are 98063 (1.2 mi), 98023 (2.3 mi), 98001 (2.4 mi), 98354 (3.7 mi) and 98422 (3.8 mi).

Is 98003 a PO Box ZIP code?

98003 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “98003 ZIP Code — Federal Way, Washington (King County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/98003

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