According to the population data for the ZIP code 07072, which represents Carlstadt in New Jersey, the area has experienced a steady population growth from 6502 in 2010 to 6760 in 2022. The population density has also increased from 1491.28 people per square mile in 2010 to 1550.46 people per square mile in 2022. Given the ZIP code's size of 4.36 square miles, the estimated number of housing units corresponding to the 2022 population is approximately 2590, based on the national average household size of 2.61.

The population density of Carlstadt falls within the range typically associated with suburban areas. Suburban regions are characterized by a mix of residential types, including single-family homes and denser developments, with lot sizes varying from 0.25 to 1 acre. The lifestyle in suburban areas is generally family-oriented, with good access to schools, parks, and shopping centers. These areas often foster an active community life through sports leagues, homeowners associations, and local festivals.

The consistent population growth and increasing population density in Carlstadt suggest that the area is experiencing ongoing urban development and densification. As the population continues to grow, it is likely that the area will see an increase in residential and commercial construction to accommodate the expanding community. This development may lead to a gradual shift towards denser housing options and a more urbanized lifestyle, while still maintaining some of the characteristics associated with suburban living.