ZIP code 17340, which includes Littlestown in Pennsylvania, has experienced moderate population growth over the past decade. The population increased from 11,062 in 2010 to 11,654 in 2022, representing a growth of 5.35 percent over the 12-year period. The population density has also increased from 288.0 people per square mile in 2010 to 303.41 people per square mile in 2022.

Given the ZIP code's size of 38.41 square miles and the 2022 population density of 303.41 people per square mile, the area can be classified as rural. Rural areas typically have population densities between 50 and 500 people per square mile, and the lifestyle in these areas is generally community-oriented, centered around local schools and small businesses. Common activities in rural areas include hobby farming, horse ownership, and outdoor activities.

The estimated number of housing units corresponding to the 2022 population, based on the national average household size of 2.61, is approximately 4,465. This suggests that the area likely features larger living spaces, ranging from 1 to 5 acres, with fewer public services and lower infrastructure density compared to more urban areas.