ZIP code 21212 in Baltimore, Maryland, with an area of 4.69 square miles, has experienced population fluctuations over the past decade, with a general upward trend. The population in 2022 stood at 33,497, resulting in a population density of 7,142.22 people per square mile.

This population density places the area firmly in the Urban classification, characterized by multi story residential buildings, commercial establishments, and a well developed infrastructure. Urban areas typically feature smaller living spaces, ranging from 500 to 1,000 square feet, catering to individuals and families who enjoy the vibrant city life and the convenience of extensive public transportation, diverse dining options, entertainment venues, and cultural institutions.

The historical population data reveals that the area has consistently maintained an Urban designation throughout the past decade, with population densities ranging from 6,914.71 to 7,240.51 people per square mile. This suggests that the lifestyle and urban development activity in the ZIP code have remained relatively stable, with a focus on high density living and access to urban amenities.