98528
ZIP 98528 is Belfair, Washington, mostly in Mason County; area codes 360 and 564; Pacific time.
- Type
- Standard
- Time zone
- America/Los_Angeles
- County
- Mason +1 more
- Metro area
- Shelton, WA
- Population
- 11,940
- Coordinates
- 47.4473, -122.8962
Weather right now
Asking the National Weather Service…
Where 98528 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 98528 into a pocket calculator and turn it upside down: BZSBG — not quite a word, sorry.
- ➕ As a number, 98,528 = 2 × 2 × 2 × 2 × 2 × 3079. Its digits add up to 32, a total 644 other ZIP codes share.
- 💾In binary, the way a computer stores it:
11000000011100000 - 🏠 Its numerical neighbours: 98527 (Bay Center, WA, 76 mi away) and 98530 (Bucoda, WA, 44 mi away).
- 🔄 Backwards, 98528 becomes 82589, which is not a ZIP code at all.
- 👥 12 other ZIP codes are made of exactly the same digits (28589, 29588, 59828, 85298, 85928, 88529, …). The farthest-flung twin is 28589 in Williston, NC, 2,525 miles away.
- 🧭 Farther north than 96% of all ZIP codes, and farther west than 98%.
- 🎯1,318 miles northwest of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 98528 and you would come out at 47.45°S, 57.10°E — 615 miles from Port-aux-Français, French Southern Territories, the nearest big city to that spot.
- ☀Longest day of the year: 15h 58m of daylight. Shortest: 8h 27m.
- 📏 At 72.3 square miles of land, 98528 is bigger than 70% of ZIP codes — room for about 55 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 11,940This ZIP11,940 |
|---|---|
| Households | 4,412This ZIP4,412 |
| Housing units | 5,379This ZIP5,379 |
| Median age | 42.2This ZIP42.2Washington38.3US 38.9 |
| Median household income | $91,058This ZIP$91,058Washington$98,141US $80,734 |
| Median home value | $430,200This ZIP$430,200Washington$564,600US $332,700 |
| Median gross rent | $1,216This ZIP$1,216Washington$1,760US $1,413 |
| Bachelor's degree or higher | 19.1%This ZIP19.1% |
| Mean commute | 36.0 minThis ZIP36.0 min |
| Population density | 165.2 / sq miThis ZIP165.2 / sq mi |
Business and tax activity
| Business establishments | 218This ZIP218 |
|---|---|
| Employees | 1,570This ZIP1,570 |
| Annual payroll | $65,204,000This ZIP$65,204,000 |
| Tax returns filed | 5,410This ZIP5,410 |
| Total adjusted gross income | $431,469,000This ZIP$431,469,000 |
Land area
| Land area | 72.29 sq miThis ZIP72.29 sq mi |
|---|---|
| Water area | 12.54 sq miThis ZIP12.54 sq mi |
Counties 98528 spans
A ZIP code is a mail route and ignores county lines. Shares are by overlapping land area.
| County | Share of this ZIP |
|---|---|
| Mason County | 100.0% |
| Kitsap County | 0.1% |
Other place names in 98528
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 98528
| ZIP | City | Distance |
|---|---|---|
98524 | Allyn, WA | 6.2 mi |
98588 | Tahuya, WA | 6.4 mi |
98546 | Grapeview, WA | 8.7 mi |
98329 | Gig Harbor, WA | 9.3 mi |
98555 | Lilliwaup, WA | 9.8 mi |
98394 | Vaughn, WA | 10.1 mi |
98312 | Bremerton, WA | 10.3 mi |
98380 | Seabeck, WA | 10.7 mi |
98367 | Port Orchard, WA | 10.8 mi |
98592 | Union, WA | 11.5 mi |
Find every ZIP code within 10 miles of 98528 →
Questions about this ZIP code
Where is ZIP code 98528?
98528 is in Belfair, Washington, in Mason County, part of the Shelton, WA micropolitan area. Its published point location is 47.4473, -122.8962.
What county is 98528 in?
98528 spans 2 counties: Mason County and Kitsap County. Most of it falls in Mason 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 98528?
Belfair uses area codes 360 and 564, from NANPA's telephone records.
What time zone is 98528 in?
98528 uses America/Los_Angeles.
How many people live in 98528?
About 11,940 people live in ZIP code 98528, in 4,412 households, at 165.2 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 98528?
$91,058 a year, against $98,141 across Washington.
What ZIP codes are near 98528?
The closest are 98524 (6.2 mi), 98588 (6.4 mi), 98546 (8.7 mi), 98329 (9.3 mi) and 98555 (9.8 mi).
Is 98528 a PO Box ZIP code?
98528 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “98528 ZIP Code — Belfair, Washington (Mason County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/98528
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/98528.json Underlying data is public domain or openly licensed — sources, vintages and licences.