Roche Harbor, Washington Demographics & Population 2026

A note before these figures: with a population of 778, Roche Harbor'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

Roche Harbor is a small community located in Washington, within San Juan County. The total population is 778. It ranks as the 423rd most populous out of 628 Census-designated places in Washington.

Age Demographics

The median age in Roche Harbor is 61.7 years. This is 61% higher than the state median of 38.3 years. Only 8.9% of residents are under 18, indicating fewer families with children. 16.2% 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 Roche Harbor is $94,167. This is 4% lower than the state median of $98,141. It is also 17% higher than the national median of $80,734. The poverty rate stands at 10.7%. This is 8% higher than the state poverty rate of 9.9%. The unemployment rate is 0.8%. This is 84% lower than the state rate of 5.1%. The median home value is $902,000. Housing costs are 60% higher than the state median of $564,600. The home-value-to-income ratio of 9.6x suggests that housing affordability is a significant concern for many residents. 84.1% of occupied housing units are owner-occupied. This homeownership rate is 32% higher than the state average of 63.8%.

Race & Ethnicity

The largest racial or ethnic group in Roche Harbor is White (non-Hispanic), making up 84.2% of the population. Hispanic or Latino residents account for 7.1%. The Black or African American population (0.3%) is well below the state average of 3.9%. The Hispanic or Latino population (7.1%) is well below the state average of 14.4%. The Asian population (1.9%) is well below the state average of 9.7%.

Education

55.6% of residents aged 25 and older hold a bachelor's degree or higher. This places Roche Harbor in the top 10% of all cities in the state for educational attainment. This is 40% 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 96.2%. Notably, 22.4% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for Roche Harbor, 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.