Long Branch Creek, a neighborhood in Arlington, Virginia, exhibited a "White Majority" demographic profile with 56% of the population identifying as white in 2022. The community maintained a relatively stable racial composition over the past decade, with some fluctuations. Economically, the neighborhood experienced significant income growth, with the median income rising from $95,363 in 2013 to $88,937 in 2022, despite a recent decline. Long Branch Creek's proximity to the Pentagon likely influences its demographics and economic characteristics.

From 2013 to 2022, Long Branch Creek consistently maintained a "White Majority" status, with the white population ranging from 48% to 59%. In 2015, the neighborhood briefly transitioned to a "White Plurality" status, with the white population dropping to 48%. This shift coincided with increases in Asian, Black, and Hispanic populations. By 2020, the white population reached its peak at 59%, solidifying the "White Majority" status. Throughout the decade, the Black population remained the second-largest group, consistently around 20-25%, indicating a "Moderate Diversity" in the neighborhood. The Asian and Hispanic populations fluctuated between 4-11% each, contributing to the overall diversity of the area.

The neighborhood's economic trajectory showed correlations with its demographic shifts. The median income saw a steady increase from 2013 to 2021, rising from $95,363 to $114,191, a 19.7% increase over eight years. The peak in median income in 2021 ($114,191) coincided with a slight increase in the Asian population and a decrease in the Hispanic population, potentially indicating changes in the neighborhood's professional demographic. In 2022, there was a significant drop in median income to $88,937, a 22% decrease from the previous year. This sharp decline occurred alongside a slight increase in the Black population and a decrease in the white population, suggesting possible economic challenges or demographic shifts affecting higher-income residents.