Arlington Bluff, a neighborhood in Arlington, Washington, is characterized as a predominantly White Majority community with Low Diversity. As of 2022, the racial composition shows 81% white residents, with a median household income of $95,159. The neighborhood has experienced steady population growth over the past decade, reaching 1,847 residents in 2022. Arlington Bluff is situated near the Cascade Mountains and Stillaguamish River.

Over the past decade, Arlington Bluff has maintained its status as a White Majority community. The percentage of white residents has fluctuated slightly, from 81% in 2013 to 92% in 2019, before returning to 81% in 2022. The Hispanic population has decreased from 9% in 2013 to 4% in 2022. The Asian population has increased from 1% in 2013 to 3% in 2022. The "Other" category increased from 0% in 2019 to 14% in 2020, then stabilized at 8% in 2021 and 2022. Despite these shifts, the neighborhood has remained in the Low Diversity category throughout the decade.

The median household income in Arlington Bluff has shown an upward trend. It increased from $73,779 in 2013 to $95,159 in 2022, representing a 29% increase over nine years. The highest median income was recorded in 2021 at $102,967. The period of highest income (2019-2021) coincides with the highest percentage of white residents. The steady increase in median income, coupled with the maintained white majority, indicates that the neighborhood has become increasingly affluent while remaining relatively unchanged in its racial composition.