Based on the historical population data for the ZIP code 15670, which corresponds to New Alexandria in Pennsylvania, the area has experienced a gradual population decline from 2010 to 2022. The population peaked in 2010 at 4,716 and has since decreased to 4,361 in 2022. This change represents a 7.5 percent decrease over the 12-year period.

The population density in the ZIP code has also decreased, from 107.5 people per square mile in 2010 to 99.41 people per square mile in 2022. Given the ZIP code's size of 43.87 square miles, this population density suggests that the area falls within the rural classification, which typically features population densities between 50 and 500 people per square mile.

Rural areas are characterized by larger living spaces, ranging from 1 to 5 acres, fewer public services, and lower infrastructure density. The lifestyle in these areas is often community-oriented, centered around local schools and small businesses. Common activities in rural areas include hobby farming, horse ownership, and significant outdoor activities, taking advantage of the natural environment.