Arlington Heights has experienced demographic shifts over the past decade. The population peaked in 2017 at 14,485 but has since declined to 11,504 in 2022. Despite this population decrease, the median income has shown a general upward trend, rising from $26,064 in 2013 to $43,234 in 2022. The racial composition of the neighborhood has remained relatively stable, with a consistently high Hispanic population (around 67-69% from 2013 to 2022). The Asian population has slightly increased from 12% to 15% between 2013 and 2022, while the Black population has remained relatively steady at 11-15%. The White population has decreased slightly from 6% to 4% during this period.

These demographic trends, particularly the increase in median income, may partially explain why no new LIHTC projects have been recorded in the neighborhood since 2008. However, it is important to note that other affordable housing programs may be active in the area, contributing to the overall affordable housing stock.

Arlington Heights has a modest LIHTC-funded affordable housing inventory, representing about 2.9% of its estimated housing stock. The neighborhood saw consistent development of affordable housing from 1997 to 2008, with a diverse range of unit types to accommodate different household sizes. While demographic trends show a decreasing population but increasing median income over the past decade, the racial composition has remained relatively stable with a predominant Hispanic population. These factors may influence the current and future needs for affordable housing in the neighborhood, although a comprehensive assessment would require consideration of other housing programs and local economic factors.