The ZIP code 21756 in Keedysville, Maryland, with a total area of 22.4 square miles, has experienced fluctuations in its population and population density over the past decade. The population in 2022 was recorded as 3,536, with a corresponding population density of 157.86 people per square mile.

Given the population density, this area can be classified as rural, characterized by larger living spaces, typically 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 such rural settings is often community-oriented, centered around local schools, small businesses, and outdoor activities, with a focus on privacy and a closer connection to nature.

The population data shows a general increasing trend from 2010 to 2016, followed by a slight decline and subsequent stabilization in recent years. This suggests that the area has experienced moderate growth and development, likely attracting new residents drawn to the rural lifestyle and community atmosphere.