Based on the historical population data for ZIP code 62515, which encompasses Buffalo in Illinois, the area has maintained a relatively low population density over the past decade. In 2022, the population density was approximately 28 people per square mile, with an estimated 1,874 residents occupying the 66.74 square mile area.

This low population density suggests that the ZIP code is predominantly rural in nature. The lifestyle in such areas is typically characterized by larger living spaces, often ranging from 1 to 5 acres per household, and a strong sense of community centered around local schools and small businesses. Residents may engage in activities such as hobby farming, horse ownership, and outdoor recreational pursuits, taking advantage of the natural environment and the privacy afforded by the low-density setting.

The population growth in the area has been modest, with an increase of approximately 363 residents between 2010 and 2022, representing a growth rate of around 24 percent over the 12-year period. This steady but slow growth indicates that the area has not experienced significant urban development or rapid expansion, maintaining its rural character over time.