Based on the historical population data provided for the ZIP code 21208 in Pikesville, Maryland, the area has experienced consistent population growth over the past decade. The population increased from 33,541 in 2010 to 38,947 in 2022, representing a 16.1 percent growth rate. This growth has been accompanied by an increase in population density, rising from 2,651.46 people per square mile in 2010 to 3,078.81 people per square mile in 2022.

The current population density of 3,078.81 people per square mile suggests that the ZIP code falls within the urban classification range. Urban areas are characterized by a mix of multi-story residential buildings, commercial buildings, and high levels of infrastructure and services. The lifestyle in such areas is typically fast-paced, diverse, and culturally rich, suitable for individuals and families who enjoy vibrant city life with extensive public transport, restaurants, theaters, and museums.

Given the ZIP code's size of 12.65 square miles and the 2022 population of 38,947, the estimated number of housing units corresponding to the 2022 population is approximately 14,922, assuming the national average household size of 2.61 people per household. This indicates a relatively high housing density, which is consistent with the urban classification.