Deep River, Washington Demographics & Population 2026

A note before these figures: with a population of 147, Deep River's ACS estimates come from a small number of survey responses and carry wide margins of error. Individual percentages below — particularly rates that round to 0% or 100% — are approximations, not precise measurements. See data.census.gov for the published margins of error.

Population Overview

Deep River is a small community located in Washington, within Wahkiakum County. The total population is 147. It ranks as the 578th most populous out of 628 Census-designated places in Washington.

Age Demographics

The median age in Deep River is 66.9 years. This is 75% higher than the state median of 38.3 years. Only 10.2% of residents are under 18, indicating fewer families with children. 16.3% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.

Economy, Income & Housing

The median household income in Deep River is $62,604. This is 36% lower than the state median of $98,141. It is also 22% lower than the national median of $80,734. The poverty rate stands at 15.7%. This is 58% higher than the state poverty rate of 9.9%. The survey records no unemployed residents in Deep River, which reflects the size of the sample rather than a labor market without joblessness. The median home value is $442,100. Housing costs are 22% lower than the state median of $564,600. The home-value-to-income ratio of 7.1x suggests that housing affordability is a significant concern for many residents. 81.2% of occupied housing units are owner-occupied. This homeownership rate is 27% higher than the state average of 63.8%.

Race & Ethnicity

Every resident counted in Deep River was recorded as White (non-Hispanic). A figure of exactly 100.0% reflects a survey sample too small to capture the community's full composition rather than a precise measurement.

Education

16.7% of residents aged 25 and older hold a bachelor's degree or higher. This is 58% lower than the state rate of 39.6%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 90.9%.

Data Sources & Methodology

All demographic data for Deep River, Washington is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Washington state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 628 Census-designated places in Washington. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.