ZIP code 15129, encompassing Jefferson Hills in Pennsylvania, has experienced moderate population fluctuations over the past decade, with a current (2022) population of 10,573 residents within its 7.7 square mile area. This translates to a population density of 1,373.12 people per square mile, placing it in the suburban classification range.

The population density suggests that the area is primarily characterized by a mix of residential types, including single-family homes and some denser housing developments. Lot sizes likely vary from 0.25 to 1 acre, providing residents with a balance between living space and proximity to neighbors. The estimated 4,051 housing units in the ZIP code further support this suburban landscape.

Given the suburban nature of the area, the lifestyle in ZIP code 15129 is likely family-oriented, with good access to schools, parks, and shopping centers. The community life may revolve around activities such as sports leagues, homeowners associations, and local festivals, fostering a sense of belonging and engagement among residents.