Mason ZIP codes — Mason County, Washington

Mason County is a small city in Washington, with 66,968 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates. The median age here is 44.8 years against 39.1 nationally, a slightly older profile than the country as a whole. At this size the Census also publishes one-year estimates; the five-year values used here are steadier and let you compare against smaller neighbours on the same basis.

Households in Mason County earn a median of $78,359 a year, essentially level with the national figure of $78,538. The median is the midpoint household, not an average, so a handful of very high earners cannot drag it upward the way they distort a mean. Poverty reaches 12.6% of residents here, above the 12.4% national rate.

The typical owner-occupied home in Mason County is valued at $377,400, 24.4% above the national figure, while median gross rent runs $1,205 a month, 14.3% below the national figure, or roughly $14,460 across a full year. A household on the local median income would put about 18.5% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is cheap relative to what people here earn. The home-price-to-income ratio works out to 4.8×, against roughly 3.9× nationally, so buying is harder here than in the average US market. 81.1% of occupied homes are owner-occupied versus 65% nationally, an owner-dominated market where rental listings are scarce and rent medians rest on a thin sample. The rent line includes utilities paid by the tenant, a definition worth remembering when comparing it against a landlord's quoted rate.

Every value on this page is published directly by the Census for this area — nothing is modelled or interpolated. Small-area estimates still carry wider margins of error than state or national figures, so check the linked ACS tables before relying on them for lending, appraisal or legal work.