Home > WA > Mason County > Belfair > Zip 98528

Zip Code 98528 — Belfair, WA

98528 is a ZIP Code associated with Belfair, WA, located within Mason. The postal region supports an estimated population of 11,940 residents across Data Pending housing units, with a population density of 63.8 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (47.446050, -122.896180)

Data MetricLocal Statistic
Postal / Zip Code98528
Primary CityBelfair
State / ProvinceWA
CountyMason
Total Population11,940
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density63.8 people/sq mi
TimezoneAmerica/Los_Angeles

How 98528 Compares

MetricZIP 98528Mason CountyWA State Average
Population11,94066,0647,816,021
Median IncomeData PendingN/AN/A
Population Density63.8 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 98524Allyn6.0 mi4,300N/A
Zip 98588Tahuya6.0 mi2,114N/A
Zip 98546Grapeview8.5 mi2,430N/A
Zip 98380Seabeck8.9 mi5,471N/A
Zip 98329Gig Harbor9.3 mi11,552N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →