Over the past decade, zip code 15234 has experienced slight fluctuations in population, with a modest increase from 14,889 in 2014 to 15,192 in 2022. Median income has shown a significant upward trend, rising from $67,599 in 2014 to $80,610 in 2022, representing a 19.2% increase.

The racial composition of the area has remained predominantly white, though there has been a slight decrease from 91% in 2014 to 86% in 2022. During this period, there have been small increases in the Asian, Black, Hispanic, and multi-racial populations.

The introduction of the LIHTC project in 2019 coincides with a period of rising median income and slight diversification in the area's racial makeup. This suggests that the affordable housing project may have been implemented to maintain housing accessibility for lower-income residents in a community experiencing economic growth.

Zip code 15234 in Castle Shannon has a single LIHTC funded affordable housing project, completed in 2019, which provides 60 units, including 6 low-income units. This project represents 1.03% of the estimated housing inventory in the area. The project received federal funding, averaging $19,843 per unit, and accounts for 0.2% of Pennsylvania's LIHTC allocation. The housing mix, primarily one-bedroom units, appears to cater to smaller households or individuals, possibly seniors.

Over the past decade, the area has experienced population stability, significant median income growth, and slight racial diversification. The introduction of LIHTC funded affordable housing in 2019 may reflect efforts to maintain housing accessibility in a community experiencing economic changes. The current LIHTC inventory represents a start in addressing affordable housing needs in this zip code.