Based on the historical population data provided for the ZIP code 15626 in Delmont, Pennsylvania, the area has experienced a fluctuating population trend over the past decade. The population peaked in 2013 at 4,650 residents and has since declined to 4,135 in 2022. The population density has also followed a similar pattern, with the highest density recorded in 2013 at 913.56 people per square mile and the lowest in 2021 at 787.43 people per square mile.

As of 2022, the ZIP code has a population density of 812.38 people per square mile, which falls within the range of a suburban rural area. This classification suggests that the area features a blend of rural openness and suburban amenities, with housing developments that are more clustered compared to traditional rural areas. The typical lot sizes in such areas are around 1 acre, providing residents with a balance between privacy and community living.

The estimated housing units corresponding to the 2022 population, based on the national average household size of 2.61, is approximately 1,584 units. This figure indicates a moderate level of residential development in the area, consistent with the suburban rural classification.