ZIP code 20782, which encompasses Chillum in Maryland, has experienced steady population growth over the past decade, with the population increasing from 31,908 in 2010 to 34,532 in 2022. This growth has been accompanied by a corresponding increase in population density, which has risen from 7,472.6 people per square mile in 2010 to 8,087.12 people per square mile in 2022.

Given the ZIP code's size of 4.27 square miles and the 2022 population density of 8,087.12 people per square mile, this area can be classified as urban. Urban areas typically feature a mix of multi-story residential buildings, commercial buildings, and high levels of infrastructure and services. The lifestyle in such areas is often fast-paced, diverse, and culturally rich, suitable for individuals and families who enjoy vibrant city life with extensive public transport, restaurants, theaters, and museums.

Assuming the national average household size of 2.61, the estimated number of housing units corresponding to the 2022 population is approximately 13,231. This suggests a relatively high density of housing in the area, which is consistent with the urban classification.