98511

ZIP 98511 is Tumwater, Washington, in Thurston County; area codes 360 and 564; Pacific time.

Type: No street area
Time zone: America/Los_Angeles
County: Thurston
Metro area: Olympia-Lacey-Tumwater, WA
Coordinates: 46.9616, -123.0283

The Census map gives this ZIP code no delivery area of its own, which usually means it serves post office boxes, a single organization or a post office rather than streets of homes.

This ZIP code has no Census tabulation area of its own. Its point falls inside ZCTA 98512, whose figures describe that area — not this ZIP code.

☼ Live from 98511 — Tumwater, WA

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Where 98511 is

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This ZIP code has no Census tabulation area, so there is no boundary to draw — the marker is its published point location.

★ Weird and wonderful facts about 98511

🔢 Type 98511 into a pocket calculator and turn it upside down: IISBG — not quite a word, sorry.
➕ As a number, 98,511 = 3 × 7 × 4691. Its digits add up to 24, a total 2,425 other ZIP codes share.
💾In binary, the way a computer stores it: 11000000011001111
🏠 Its numerical neighbours: 98509 (Lacey, WA, 15 mi away) and 98512 (Olympia, WA, 1 mi away).
🔄 Backwards, 98511 becomes 11589, which is not a ZIP code at all.
👥 18 other ZIP codes are made of exactly the same digits (11598, 11958, 18195, 18519, 18915, 18951, …). The farthest-flung twin is 11958 in Peconic, NY, 2,502 miles away.
🧭 Farther north than 95% of all ZIP codes, and farther west than 98%.
🎯1,316 miles northwest of the geographic center of the Lower 48, near Lebanon, Kansas.
🌏 Dig straight through the Earth from 98511 and you would come out at 46.96°S, 56.97°E — 632 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
☀Longest day of the year: 15h 53m of daylight. Shortest: 8h 31m.

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Source: USGS.

Business and tax activity

Business establishments	11This ZIP11
Employees	99This ZIP99
Annual payroll	$4,363,000This ZIP$4,363,000

Land area

ZIP codes near 98511

ZIP	City	Distance
`98512`	Olympia, WA	1.1 mi
`98501`	Olympia, WA	7.3 mi
`98556`	Littlerock, WA	7.5 mi
`98504`	Olympia, WA	8.0 mi
`98507`	Olympia, WA	8.0 mi
`98508`	Olympia, WA	8.0 mi
`98599`	Olympia, WA	8.0 mi
`98505`	Olympia, WA	8.1 mi
`98502`	Olympia, WA	8.3 mi
`98503`	Lacey, WA	11.9 mi

Find every ZIP code within 10 miles of 98511 →

Questions about this ZIP code

Where is ZIP code 98511?

98511 is in Tumwater, Washington, in Thurston County, part of the Olympia-Lacey-Tumwater, WA metropolitan area. Its published point location is 46.9616, -123.0283.

What county is 98511 in?

98511 lies in Thurston County.

What area code is 98511?

Tumwater uses area codes 360 and 564, from NANPA's telephone records.

What time zone is 98511 in?

98511 uses America/Los_Angeles.

What ZIP codes are near 98511?

The closest are 98512 (1.1 mi), 98501 (7.3 mi), 98556 (7.5 mi), 98504 (8 mi) and 98507 (8 mi).

Is 98511 a PO Box ZIP code?

Possibly. The Census map gives this ZIP code no delivery area of its own, which usually means it serves post office boxes, a single organization or a post office rather than streets of homes.

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Cite this page

zipcodes.pro. “98511 ZIP Code — Tumwater, Washington (Thurston County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/98511

Machine-readable version of these facts:

curl https://zipcodes.pro/zip/98511.json

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