Green Bluff, Washington Demographics & Population 2026

A note before these figures: with a population of 323, Green Bluff'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

Green Bluff is a small community located in Washington, within Spokane County. The total population is 323. It ranks as the 520th most populous out of 628 Census-designated places in Washington.

Age Demographics

The median age in Green Bluff is 63.1 years. This is 65% higher than the state median of 38.3 years. Only 5.6% of residents are under 18, indicating fewer families with children. 35.9% 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 Green Bluff is $116,250. This is 18% higher than the state median of $98,141. It is also 44% higher than the national median of $80,734. The ACS records no residents below the poverty line in Green Bluff. In a community this small the estimate rests on very few survey responses, so it should be read as an absence of measurement rather than a measured absence of poverty. The survey records no unemployed residents in Green Bluff, which reflects the size of the sample rather than a labor market without joblessness. The median home value is $823,500. Housing costs are 46% higher 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. 96.3% of occupied housing units are owner-occupied. This homeownership rate is 51% higher than the state average of 63.8%.

Race & Ethnicity

Green Bluff has a predominantly White (non-Hispanic) population, comprising 85.5% of all residents.

Education

63.1% of residents aged 25 and older hold a bachelor's degree or higher. This places Green Bluff in the top 10% of all cities in the state for educational attainment. This is 59% higher 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 97.3%. Notably, 29.0% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for Green Bluff, 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.