According to the historical population data provided for ZIP code 92346 in Highland, California, the area has experienced consistent growth in population and population density over the past decade. The population increased from 55,297 in 2010 to 62,801 in 2022, while the population density rose from 2,778.74 people per square mile in 2010 to 3,155.83 people per square mile in 2022.

Based on the 2022 population density of 3,155.83 people per square mile, ZIP code 92346 can be classified as an urban area. Urban areas are characterized by a mix of multi-story residential buildings, commercial buildings, and high levels of infrastructure and services. The lifestyle in urban areas is typically fast-paced, diverse, and culturally rich, making it suitable for individuals and families who enjoy vibrant city life with extensive public transport, restaurants, theaters, and museums.

The consistent population growth in ZIP code 92346 suggests ongoing urban development activity in the area. As the population continues to increase, it is likely that the area will see further development of residential and commercial properties, as well as improvements in infrastructure and services to accommodate the growing population.