Oakville, WA population, income and ZIP codes

Oakville city is a very small community in Washington, with 739 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #429 of 639 ranked by population — larger than 32% of them. The median age here is 47.9 years against 39.1 nationally, a markedly older profile that usually tracks retirees staying put and younger households leaving for work. At this population the ACS sample is small, so the margin of error around every dollar figure below is wide — treat the numbers as a band, not a point, and expect them to move between annual releases without the place itself changing.

Households in Oakville city earn a median of $71,375 a year, 9.1% below the national figure of $78,538 and 21% below the $90,592 median for the 393 Washington cities we cover. This figure covers the household, not the worker: two people on ordinary wages at one address outrank a single professional in the same table. Poverty reaches 16.3% of residents here, above the 12.4% national rate.

The typical owner-occupied home in Oakville city is valued at $225,200, 25.8% below the national figure and 52% below the $468,400 peer median, while median gross rent runs $1,152 a month, 18.1% below the national figure, or roughly $13,824 across a full year. A household on the local median income would put about 19.4% 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 3.2×, against roughly 3.9× nationally, so buying is easier here than in the average US market. 83.1% 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. Rent is reported gross — contract rent plus tenant-paid utilities — which is why it runs above the advertised price on a listing for the same unit.

With 739 residents, a handful of survey responses moves every median on this page. Compare Oakville city against its county rather than against national figures.

All values below were released by the Census for this exact geography, with no gap-filling on our side. 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.