98555
ZIP 98555 is Lilliwaup, Washington, in Mason County; area code 360; Pacific time.
- Type
- Standard
- Time zone
- America/Los_Angeles
- County
- Mason
- Metro area
- Shelton, WA
- Population
- 324
- Coordinates
- 47.5334, -123.0634
Weather right now
Asking the National Weather Service…
Where 98555 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.
- 🔢 Type 98555 into a pocket calculator and turn it upside down: SSSBG — not quite a word, sorry.
- ➕ As a number, 98,555 = 5 × 23 × 857. Its digits add up to 32, a total 644 other ZIP codes share.
- 💾In binary, the way a computer stores it:
11000000011111011 - 🏠 Its numerical neighbours: 98554 (Lebam, WA, 71 mi away) and 98556 (Littlerock, WA, 45 mi away).
- 🔄 Backwards, 98555 becomes 55589, which is not a ZIP code at all.
- 👥 7 other ZIP codes are made of exactly the same digits (55598, 55985, 58559, 59855, 89555, 95558, …). The farthest-flung twin is 55985 in West Concord, MN, 1,461 miles away.
- 🧭 Farther north than 96% of all ZIP codes, and farther west than 98%.
- 🎯1,327 miles northwest of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 98555 and you would come out at 47.53°S, 56.94°E — 621 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 26m.
- 📏 At 26.5 square miles of land, 98555 is bigger than 43% of ZIP codes — room for about 20 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 324This ZIP324 |
|---|---|
| Households | 233This ZIP233 |
| Housing units | 793This ZIP793 |
| Median age | 67.2This ZIP67.2Washington38.3US 38.9 |
| Median home value | $462,500This ZIP$462,500Washington$564,600US $332,700 |
| Bachelor's degree or higher | 36.3%This ZIP36.3% |
| Population density | 12.2 / sq miThis ZIP12.2 / sq mi |
Business and tax activity
| Business establishments | 9This ZIP9 |
|---|---|
| Employees | 121This ZIP121 |
| Annual payroll | $6,062,000This ZIP$6,062,000 |
| Tax returns filed | 310This ZIP310 |
| Total adjusted gross income | $26,321,000This ZIP$26,321,000 |
Land area
| Land area | 26.48 sq miThis ZIP26.48 sq mi |
|---|---|
| Water area | 11.19 sq miThis ZIP11.19 sq mi |
ZIP codes near 98555
| ZIP | City | Distance |
|---|---|---|
98548 | Hoodsport, WA | 5.2 mi |
98588 | Tahuya, WA | 6.2 mi |
98380 | Seabeck, WA | 9.8 mi |
98528 | Belfair, WA | 9.8 mi |
98320 | Brinnon, WA | 11.3 mi |
98592 | Union, WA | 13.8 mi |
98312 | Bremerton, WA | 14.3 mi |
98524 | Allyn, WA | 15.7 mi |
98546 | Grapeview, WA | 16.2 mi |
98383 | Silverdale, WA | 18.4 mi |
Find every ZIP code within 10 miles of 98555 →
Questions about this ZIP code
Where is ZIP code 98555?
98555 is in Lilliwaup, Washington, in Mason County, part of the Shelton, WA micropolitan area. Its published point location is 47.5334, -123.0634.
What county is 98555 in?
98555 lies in Mason County.
What area code is 98555?
Lilliwaup uses area code 360, from NANPA's telephone records.
What time zone is 98555 in?
98555 uses America/Los_Angeles.
How many people live in 98555?
About 324 people live in ZIP code 98555, in 233 households, at 12.2 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.
What ZIP codes are near 98555?
The closest are 98548 (5.2 mi), 98588 (6.2 mi), 98380 (9.8 mi), 98528 (9.8 mi) and 98320 (11.3 mi).
Is 98555 a PO Box ZIP code?
98555 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “98555 ZIP Code — Lilliwaup, Washington (Mason County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/98555
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/98555.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.