Over the past decade, zip code 61231 has experienced slight population fluctuations, with a general decreasing trend from 6,437 in 2010 to 6,338 in 2022. The median income has shown an overall increase, rising from $48,724 in 2013 to $56,363 in 2022, suggesting a gradual improvement in economic conditions for the area's residents.

The racial composition of zip code 61231 has remained predominantly white, with a slight decrease from 96% in 2013 to 94% in 2022. There has been a small increase in diversity, with the Hispanic population growing from 3% to 4% during this period, and other racial groups maintaining relatively stable, small percentages.

The completion of the Buttonwood Trails project in 2014 aligns with a period when the population was decreasing and median income was beginning to rise. This suggests that the LIHTC project may have been initiated to address affordable housing needs during a time of economic transition in the area.

Zip code 61231 has a limited LIHTC funded affordable housing inventory, with only one project providing 4 units. This represents a small fraction of the estimated housing stock in the area. The project received significant federal funding per unit and contributes to a small portion of Illinois' overall LIHTC allocation. The area has seen a slight decrease in population over the past decade, while median incomes have risen, and racial composition has remained largely stable with a slight increase in diversity. The timing of the LIHTC project's completion in 2014 suggests it was implemented during a period of demographic and economic change in the zip code.