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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/98303

98303

ZIP 98303 is Anderson Island, Washington, in Pierce County; Pacific time.

Type
Standard
Time zone
America/Los_Angeles
County
Pierce
Population
1,448
Coordinates
47.1499, -122.6817
☼ Live from 98303 — Anderson Island, WA

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NEXRAD radar
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Local time: —

Where 98303 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 98303
  • 🔢 Type 98303 into a pocket calculator and turn it upside down: EOEBG — not quite a word, sorry.
  • ➕ As a number, 98,303 = 197 × 499. Its digits add up to 23, a total 2,533 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10111111111111111
  • 🏠 Its numerical neighbours: 98297 (Waldron, WA, 108 mi away) and 98304 (Ashford, WA, 48 mi away).
  • 🔄 Backwards, 98303 becomes 30389, which is not a ZIP code at all.
  • 👥 20 other ZIP codes are made of exactly the same digits (03839, 08933, 09833, 30398, 33809, 33890, …). The farthest-flung twin is 09833 in APO AE, a military post office, 7,056 miles away.
  • 🧭 Farther north than 96% of all ZIP codes, and farther west than 97%.
  • 🎯1,303 miles northwest of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 98303 and you would come out at 47.15°S, 57.32°E — 612 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 55m of daylight. Shortest: 8h 29m.
  • 📏 At 8.0 square miles of land, 98303 is bigger than 24% of ZIP codes — room for about 6.0 Central Parks.
🌙 The sky over 98303 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population1,448This ZIP1,448
Households819This ZIP819
Housing units1,112This ZIP1,112
Median age61.6This ZIP61.6Washington38.3US 38.9
Median household income$80,282This ZIP$80,282Washington$98,141US $80,734
Median home value$546,300This ZIP$546,300Washington$564,600US $332,700
Bachelor's degree or higher44.0%This ZIP44.0%
Mean commute35.5 minThis ZIP35.5 min
Population density182.1 / sq miThis ZIP182.1 / sq mi

Business and tax activity

Business establishments17This ZIP17
Employees108This ZIP108
Annual payroll$4,375,000This ZIP$4,375,000
Tax returns filed680This ZIP680
Total adjusted gross income$62,084,000This ZIP$62,084,000

Land area

Land area7.95 sq miThis ZIP7.95 sq mi
Water area13.04 sq miThis ZIP13.04 sq mi

Other place names in 98303

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

ZIP codes near 98303

ZIPCityDistance
98327 Dupont, WA 3.2 mi
98388 Steilacoom, WA 4.1 mi
98433 Tacoma, WA 5.3 mi
98351 Longbranch, WA 5.5 mi
98430 Camp Murray, WA 5.8 mi
98498 Lakewood, WA 5.9 mi
98516 Olympia, WA 6.0 mi
98467 University Place, WA 6.5 mi
98333 Fox Island, WA 7.6 mi
98497 Lakewood, WA 7.8 mi

Find every ZIP code within 10 miles of 98303 →

Questions about this ZIP code

Where is ZIP code 98303?

98303 is in Anderson Island, Washington, in Pierce County, part of the Seattle-Tacoma-Bellevue, WA metropolitan area. Its published point location is 47.1499, -122.6817.

What county is 98303 in?

98303 lies in Pierce County.

What time zone is 98303 in?

98303 uses America/Los_Angeles.

How many people live in 98303?

About 1,448 people live in ZIP code 98303, in 819 households, at 182.1 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 98303?

$80,282 a year, against $98,141 across Washington.

What ZIP codes are near 98303?

The closest are 98327 (3.2 mi), 98388 (4.1 mi), 98433 (5.3 mi), 98351 (5.5 mi) and 98430 (5.8 mi).

Is 98303 a PO Box ZIP code?

98303 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “98303 ZIP Code — Anderson Island, Washington (Pierce County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/98303

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