The ZIP code 11717, corresponding to Brentwood in New York, has experienced significant population growth and increasing population density over the past decade. The population increased from 53,531 in 2010 to 63,713 in 2022, representing an 18.7 percent growth rate. Simultaneously, the population density rose from 5,012.27 people per square mile in 2010 to 5,965.64 people per square mile in 2022.

With a population density of 5,965.64 people per square mile in 2022, the area falls into the urban classification. Urban areas are characterized by 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, well-suited for individuals and families who enjoy vibrant city life with extensive public transport, restaurants, theaters, and museums.

The estimated number of housing units corresponding to the 2022 population, based on the national average household size of 2.61, is approximately 24,411. This relatively high number of housing units within the 10.68 square mile area further supports the urban nature of the ZIP code.