The ZIP code 17040, which includes Landisburg in Pennsylvania, has experienced slight fluctuations in population between 2010 and 2022. The population reached a peak of 2,780 in 2019 and currently stands at 2,715 as of 2022. The area covers approximately 49.08 square miles, resulting in a population density of 55.32 people per square mile in 2022.

Given the population density, this ZIP code can be classified as a rural area. Rural areas are typically characterized by large living spaces, often ranging from 1 to 5 acres per household, and a lower density of infrastructure and public services compared to more urban areas. The lifestyle in rural areas is often community-oriented, centered around local schools and small businesses, with residents engaging in activities such as hobby farming, horse ownership, and outdoor pursuits.

The estimated number of housing units corresponding to the 2022 population, assuming the national average household size of 2.61, is approximately 1,040. This suggests that the area is primarily composed of single-family homes or small multi-family dwellings, which is consistent with the rural classification.