Belfair, WA ZIP code
The ZIP code for Belfair, Washington is 98528. It is in Mason County.
- Population in these ZIPs
- 11,940
- Avg. median income
- $91,100population-weighted
- Typical home value
- $483,200population-weighted
- Metro area
- Shelton, WA
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Belfair, WA ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 98528 | 11,940 | $91,058 | $483,200 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities near Belfair
Frequently asked questions
What is the ZIP code for Belfair, WA?
The ZIP code for Belfair, WA is 98528.
What county is Belfair, Washington in?
Belfair ZIP codes are in Mason County.