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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/98101

98101

ZIP 98101 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
17,153
Coordinates
47.6109, -122.3364
☼ Live from 98101 — Seattle, WA

Weather right now

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Local time: —

Where 98101 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 98101
  • 🔢 Type 98101 into a pocket calculator and turn it upside down: IOIBG — not quite a word, sorry.
  • ➕ 98101 is a prime number. It cannot be divided by anything except 1 and itself. Its digits add up to 19, a total 2,454 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 10111111100110101
  • 🏠 Its numerical neighbours: 98093 (Federal Way, WA, 23 mi away) and 98102 (Seattle, WA, 2 mi away).
  • 🔄 Backwards, 98101 becomes 10189, which is not a ZIP code at all.
  • 👥 23 other ZIP codes are made of exactly the same digits (09811, 10918, 10981, 11980, 18091, 18109, …). The farthest-flung twin is 09811 in APO AE, a military post office, 7,523 miles away.
  • 🧭 Farther north than 97% of all ZIP codes, and farther west than 96%.
  • 🎯1,296 miles northwest of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 98101 and you would come out at 47.61°S, 57.66°E — 587 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 59m of daylight. Shortest: 8h 25m.
  • 📏 At 0.528 square miles of land, 98101 is bigger than 5% of ZIP codes — about 256 football fields.
🌙 The sky over 98101 today
  • Working out the sun…
🌋 Shake report
  • Checking the USGS…

Source: USGS.

People and housing

Population17,153This ZIP17,153
Households11,722This ZIP11,722
Housing units13,585This ZIP13,585
Median age33.8This ZIP33.8Washington38.3US 38.9
Median household income$128,882This ZIP$128,882Washington$98,141US $80,734
Median home value$784,200This ZIP$784,200Washington$564,600US $332,700
Median gross rent$2,483This ZIP$2,483Washington$1,760US $1,413
Bachelor's degree or higher74.3%This ZIP74.3%
Mean commute21.6 minThis ZIP21.6 min
Population density32,486.7 / sq miThis ZIP32,486.7 / sq mi

Business and tax activity

Business establishments2,609This ZIP2,609
Employees96,469This ZIP96,469
Annual payroll$13,471,022,000This ZIP$13,471,022,000
Tax returns filed10,090This ZIP10,090
Total adjusted gross income$2,438,424,000This ZIP$2,438,424,000

Land area

Land area0.53 sq miThis ZIP0.53 sq mi
Water area0.11 sq miThis ZIP0.11 sq mi

Other place names in 98101

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

ZIP codes near 98101

ZIPCityDistance
98170 Seattle, WA 0.2 mi
98154 Seattle, WA 0.3 mi
98111 Seattle, WA 0.4 mi
98114 Seattle, WA 0.4 mi
98124 Seattle, WA 0.4 mi
98129 Seattle, WA 0.4 mi
98131 Seattle, WA 0.4 mi
98138 Seattle, WA 0.4 mi
98145 Seattle, WA 0.4 mi
98160 Seattle, WA 0.4 mi

Find every ZIP code within 10 miles of 98101 →

Questions about this ZIP code

Where is ZIP code 98101?

98101 is in Seattle, Washington, in King County, part of the Seattle-Tacoma-Bellevue, WA metropolitan area. Its published point location is 47.6109, -122.3364.

What county is 98101 in?

98101 lies in King County.

What area code is 98101?

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

What time zone is 98101 in?

98101 uses America/Los_Angeles.

How many people live in 98101?

About 17,153 people live in ZIP code 98101, in 11,722 households, at 32,486.7 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 98101?

$128,882 a year, against $98,141 across Washington.

What ZIP codes are near 98101?

The closest are 98170 (0.2 mi), 98154 (0.3 mi), 98111 (0.4 mi), 98114 (0.4 mi) and 98124 (0.4 mi).

Is 98101 a PO Box ZIP code?

98101 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “98101 ZIP Code — Seattle, Washington (King County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/98101

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