Based on the historical population data provided for ZIP code 78704 in Austin, Texas, the area has experienced consistent population growth over the past decade. The population increased from 40,655 in 2010 to 50,327 in 2022, representing a growth of approximately 23.8 percent during this period. The population density has also risen from 4,721.84 people per square mile in 2010 to 5,845.18 people per square mile in 2022.

Given the current population density of 5,845.18 people per square mile, ZIP code 78704 can be classified as an urban area. 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, making it suitable for individuals and families who enjoy vibrant city life with access to extensive public transport, restaurants, theaters, and museums.

The estimated number of housing units corresponding to the 2022 population is 19,282, based on the national average household size of 2.61 people per household. This suggests a relatively high density of housing units in the area, which is consistent with the urban classification.