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Demographics
Population
Population Density
According to historical population data for ZIP code 21012 in Arnold, Maryland, the area has experienced steady population growth over the past decade. The population increased from 21,352 in 2010 to 23,622 in 2022, with a corresponding increase in population density from 1,760.26 people per square mile to 1,947.4 people per square mile.
Given the ZIP code's size of 12.13 square miles and the 2022 population density of 1,947.4 people per square mile, the area can be classified as suburban. Suburban areas typically feature a mix of residential types, including single-family homes and denser developments, with lot sizes varying from 0.25 to 1 acre. The estimated number of housing units corresponding to the 2022 population is 9,050, based on the national average household size of 2.61 people per household.
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 area offers a balance between the openness of rural living and the amenities of suburban life, making it an attractive option for families seeking quieter neighborhoods with access to conveniences.
As the population continues to grow, urban development activity in the area is expected to increase to accommodate the growing number of residents. This may include the construction of new residential developments, commercial buildings, and infrastructure improvements to support the increasing population density. However, the area is likely to maintain its suburban character, with a focus on preserving green spaces and maintaining a family-friendly environment.