mason-county · Washington
Mason County
ZIP 98524
66,968 residents215 permits TTM$78,359 median HHI9 ZIP codesUpdated April 16, 2026
Investor first look
Median home value
$377,400
ACS 5-Year
Cap rate proxy
3.8%
FMR × 0.65 ÷ Home Value
Rent-to-income
18.5%
HUD FMR ÷ ACS HHI
Net migration
+2.52%
IRS SOI
Permits (TTM)
215
Census BPS
Climate risk
85.3
FEMA NRI (0–100)
ZIP 98524
Median home value
—
Gross yield
—
Cap rate
2.7%
Rent gap
—
Affordability
P/I: 6.8R/I: —
Section 8 detail
SAFMR: —Rent: —Gap: —
ZIP code breakdown9 ZIP codes
| ZIP | Median home value | Rent (FMR 2BR) | Gross yield | Cap rate | Rent gap |
|---|---|---|---|---|---|
| 98548 | — | — | — | 4.1% | — |
| 98555 | — | — | — | 3.8% | — |
| 98584 | — | — | — | 5.0% | — |
| 98560 | — | — | — | 3.8% | — |
| 98588 | — | — | — | 3.4% | — |
Ranked by composite score
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Demographics
Owner-occupied
81.1%
Census ACS
Vacancy rate
24.8%
Census ACS
Bachelor's degree +
22.0%
Census ACS
Rent burdened
36.9%
Census ACS (>30% income)
Median age
44.8
Census ACS
U.S. Census Bureau — American Community Survey 5-Year Estimates
U.S. Census Bureau — Building Permits Survey
U.S. Department of Housing and Urban Development — Fair Market Rents / Small Area Fair Market Rents (SAFMR)
Internal Revenue Service — Statistics of Income Migration Data
FEMA — National Risk Index
Last updated: April 16, 2026