Based on the historical population data provided for the 17020 ZIP code, which encompasses Duncannon in Pennsylvania, the area can be classified as rural. The population density has remained relatively stable over the years, ranging from approximately 159 to 167 people per square mile between 2010 and 2022. These density figures fall within the typical range for rural areas, which is between 50 and 500 people per square mile.

The total population of the ZIP code in 2022 was 9,410, occupying an area of 58.01 square miles. Considering the national average household size of 2.61, the estimated number of housing units corresponding to the 2022 population is about 3,605. This suggests that the area is characterized by larger living spaces and lower housing density compared to more urbanized areas.

The lifestyle in this rural ZIP code is likely to be community-oriented, with a focus on local schools, small businesses, and outdoor activities. The larger lot sizes, typically ranging from 1 to 5 acres, provide residents with ample space for pursuits such as hobby farming, horse ownership, and enjoying the natural environment. The area's population density and total population indicate that public services and infrastructure are less concentrated than in suburban or urban areas, which is typical for rural communities.