Based on the historical population data for ZIP code 21403 in Annapolis Neck, Maryland, the area can be classified as a suburban region. The population density has consistently remained within the range of 2,500 to 3,000 people per square mile over the past decade, which aligns with the characteristics of a suburban area.

Suburban areas typically feature a mix of residential types and denser developments compared to rural areas. The estimated housing units corresponding to the 2022 population of 32,382 is approximately 12,407, indicating a significant number of households within the 11.59 square mile area. This suggests that the area likely consists of a combination of single-family homes, townhouses, and multi-family residential buildings, with lot sizes ranging from 0.25 to 1 acre.

The lifestyle in this suburban area is likely to be family-oriented, with good access to schools, parks, and shopping centers. The population density allows for an active community life, with opportunities for residents to engage in sports leagues, homeowners associations, and local festivals. The area strikes a balance between the openness of rural living and the amenities and conveniences of suburban life.