The population data for the 94703 ZIP code in Berkeley, California, reveals a dense urban area with a population density of 15,849.63 people per square mile as of 2022. This density falls within the range typically associated with dense urban environments, characterized by multi-story residential buildings, commercial structures, and advanced infrastructure.

Over the past decade, the population in this ZIP code has remained relatively stable, with minor fluctuations. The population peaked in 2017 at 22,254 and has since decreased slightly to 21,397 in 2022. Despite these fluctuations, the population density has consistently remained above 14,000 people per square mile since 2010, indicating a persistently high level of urbanization.

Given the estimated 8,198 housing units corresponding to the 2022 population and the national average household size of 2.61, it can be inferred that the majority of residents in this ZIP code reside in smaller living spaces, likely apartments or condominiums, which is typical of dense urban areas. The high population density and limited land area of 1.35 square miles suggest that vertical living arrangements are prevalent, with residents prioritizing proximity to urban amenities and services over larger living spaces.