The median income in Brass Castle has fluctuated over the past decade. It peaked in 2017 at $93,459 and declined to $82,505 in 2022. This recent decline in median income coincides with the increasing diversity of the area. The median income remains relatively high, suggesting that the area continues to attract affluent residents across various racial groups.

Population trends show relative stability, with a slight increase from 14,443 in 2013 to 14,632 in 2022. This suggests that the area remains desirable and is not experiencing significant outmigration despite the changes in racial composition and income levels.

The gradual increase in diversity in Brass Castle aligns with broader national trends of increasing diversity in suburban and rural areas. The high median income, despite recent declines, suggests that Brass Castle remains an affluent area compared to national averages. The stability in population, coupled with increasing diversity, may indicate that the area is attracting diverse, affluent families.

Brass Castle remains a "Low Diversity" area with a strong "White Majority." There are signs of a gradual transition towards increased diversity. This shift is occurring alongside relative economic stability, suggesting a managed integration of new residents into the community. If current trends continue, the area may evolve into a more diverse community in the coming years, potentially transitioning to a "Moderate Diversity" classification.