Based on the historical population data for the 21864 ZIP code in Stockton, Maryland, the area has experienced fluctuations in population and population density over the past decade. The population reached a peak of 687 in 2013 and has since declined to 513 in 2022, which is the same as the starting population in 2010. The population density has followed a similar trend, with a peak of 37.24 people per square mile in 2013 and a current density of 27.8 people per square mile in 2022.

Given the ZIP code's size of 18.45 square miles and the current population density of 27.8 people per square mile, the area can be classified as a remote rural region. Remote rural areas are characterized by very sparse populations, minimal infrastructure, and limited services. The lifestyle in such areas is predominantly agricultural or undeveloped, with a focus on privacy and self-sustainability. Residents often engage in outdoor and recreational activities due to the natural environment and the large expanses of land available per household.

The estimated number of housing units corresponding to the 2022 population, based on the national average household size of 2.61, is approximately 197. This suggests that the area has a low housing density, which is consistent with the characteristics of a remote rural region.