Cowlitz ZIP codes — Cowlitz County, Washington

Cowlitz County is a mid-size city in Washington, with 111,539 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates. The median age here is 41.1 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 Cowlitz County earn a median of $72,932 a year, 7.1% below 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 13% of residents here, above the 12.4% national rate.

The typical owner-occupied home in Cowlitz County is valued at $367,400, 21.1% above the national figure, while median gross rent runs $1,169 a month, 16.9% below the national figure, or roughly $14,028 across a full year. A household on the local median income would put about 19.2% 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 5×, against roughly 3.9× nationally, so buying is harder here than in the average US market. 66.2% of occupied homes are owner-occupied versus 65% nationally, so the market leans toward owners. Gross rent folds in the utilities a tenant pays separately, so it is closer to the real monthly outlay than a headline rent figure.

No figure on this page is estimated by us; each one comes straight from the published ACS tables for this area. 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.