Based on the historical population data provided for the ZIP code 21401 in Parole, Maryland, the area has experienced consistent population growth from 2010 to 2022. The population increased from 34,430 in 2010 to 38,846 in 2022, with a corresponding increase in population density from 1,572.86 people per square mile to 1,774.6 people per square mile over the same period.

Given the ZIP code's size of 21.89 square miles and the 2022 population density of 1,774.6 people per square mile, the area can be classified as suburban. Suburban areas typically have population densities between 1,000 and 3,000 people per square mile, featuring a mix of residential types and denser developments compared to rural areas.

The lifestyle in this suburban area is likely to be family-oriented, with good access to schools, parks, and shopping centers. The community life may be active, with residents participating in sports leagues, homeowners associations, and local festivals. The estimated housing units corresponding to the 2022 population, based on the national average household size of 2.61, is approximately 14,884 units.