Population density refers to the number of people living in a given area. Most large cities are centers of health care and tourism, not farming, and are where large apartment houses are most likely to be found due to high population levels. The Boswash megalopolis is a densely populated region in the northeastern United States. New York City attracts many visitors for its fun activities, rather than skiing or small town life, due to its high population density.

1. Chapter 5 Review Population Density and Life in the Northeast