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zipcodes.pro — ZIP/98531

98531

ZIP 98531 is Centralia, Washington, mostly in Lewis County; area codes 360 and 564; Pacific time.

Type
Standard
Time zone
America/Los_Angeles
County
Lewis +1 more
Metro area
Centralia, WA
Population
27,337
Coordinates
46.7427, -122.9016
☼ Live from 98531 — Centralia, WA

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Where 98531 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 98531
  • 🔢 Type 98531 into a pocket calculator and turn it upside down: IESBG — not quite a word, sorry.
  • ➕ As a number, 98,531 = 37 × 2663. Its digits add up to 26, a total 2,038 other ZIP codes share.
  • 💾In binary, the way a computer stores it: 11000000011100011
  • 🏠 Its numerical neighbours: 98530 (Bucoda, WA, 5 mi away) and 98532 (Chehalis, WA, 11 mi away).
  • 🔄 Backwards, 98531 becomes 13589, which is not a ZIP code at all.
  • 👥 37 other ZIP codes are made of exactly the same digits (13859, 15938, 18935, 18953, 19358, 19538, …). The farthest-flung twin is 31598 in Jesup, GA, 2,400 miles away.
  • 🧭 Farther north than 95% of all ZIP codes, and farther west than 98%.
  • 🎯1,307 miles northwest of the geographic center of the Lower 48, near Lebanon, Kansas.
  • 🌏 Dig straight through the Earth from 98531 and you would come out at 46.74°S, 57.10°E — 631 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
  • ☀Longest day of the year: 15h 52m of daylight. Shortest: 8h 32m.
  • 📏 At 129.2 square miles of land, 98531 is bigger than 84% of ZIP codes — room for about 98 Central Parks.
🌙 The sky over 98531 today
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🌋 Shake report
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Source: USGS.

People and housing

Population27,337This ZIP27,337
Households11,123This ZIP11,123
Housing units11,525This ZIP11,525
Median age40.3This ZIP40.3Washington38.3US 38.9
Median household income$63,406This ZIP$63,406Washington$98,141US $80,734
Median home value$343,000This ZIP$343,000Washington$564,600US $332,700
Median gross rent$1,130This ZIP$1,130Washington$1,760US $1,413
Bachelor's degree or higher22.1%This ZIP22.1%
Mean commute25.8 minThis ZIP25.8 min
Population density211.6 / sq miThis ZIP211.6 / sq mi

Business and tax activity

Business establishments694This ZIP694
Employees10,062This ZIP10,062
Annual payroll$499,308,000This ZIP$499,308,000
Tax returns filed11,920This ZIP11,920
Total adjusted gross income$735,772,000This ZIP$735,772,000

Land area

Land area129.16 sq miThis ZIP129.16 sq mi
Water area1.48 sq miThis ZIP1.48 sq mi

Counties 98531 spans

A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.

CountyShare of this ZIP
Lewis County 79.2%
Thurston County 20.8%

Other place names in 98531

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

ZIP codes near 98531

ZIPCityDistance
98530 Bucoda, WA 4.8 mi
98544 Galvin, WA 5.9 mi
98589 Tenino, WA 8.0 mi
98532 Chehalis, WA 10.8 mi
98522 Adna, WA 10.9 mi
98579 Rochester, WA 11.1 mi
98565 Napavine, WA 11.4 mi
98576 Rainier, WA 14.0 mi
98570 Onalaska, WA 14.2 mi
98556 Littlerock, WA 15.0 mi

Find every ZIP code within 10 miles of 98531 →

Questions about this ZIP code

Where is ZIP code 98531?

98531 is in Centralia, Washington, in Lewis County, part of the Centralia, WA micropolitan area. Its published point location is 46.7427, -122.9016.

What county is 98531 in?

98531 spans 2 counties: Lewis County and Thurston County. Most of it falls in Lewis County, measured by overlapping land area — the county holding the most land in a ZIP code is not always the one holding the most residents.

What area code is 98531?

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

What time zone is 98531 in?

98531 uses America/Los_Angeles.

How many people live in 98531?

About 27,337 people live in ZIP code 98531, in 11,123 households, at 211.6 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 98531?

$63,406 a year, against $98,141 across Washington.

What ZIP codes are near 98531?

The closest are 98530 (4.8 mi), 98544 (5.9 mi), 98589 (8 mi), 98532 (10.8 mi) and 98522 (10.9 mi).

Is 98531 a PO Box ZIP code?

98531 is a standard ZIP code. A normal ZIP code with street delivery.

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Cite this page

zipcodes.pro. “98531 ZIP Code — Centralia, Washington (Lewis County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/98531

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