Impacts of Population Distribution & Density (College Board AP® Human Geography): Study Guide

Kristin Tassin

Written by: Kristin Tassin

Reviewed by: Bridgette Barrett

Updated on

Impacts on political, economic, & social processes

  • Areas with larger populations and greater population density have greater political, economic, and social power

    • Politically, higher population areas will have greater influence over laws

      • This is a result of more voters being concentrated in a smaller area of land

      • Representation in government is based on population, this means these areas will have more representatives in government 

      • Their opinions will weigh more heavily on government policy

    • Economically, areas with higher population densities have a greater concentration of jobs

      • These areas bring in more revenue

    • Socially, areas with higher population densities will have greater access to education, health care, and entertainment

  • Areas with higher population densities will also have greater access to government services, such as water and electricity, and better infrastructure.

    • Building infrastructure is more cost-effective for high-population areas due to economies of scale

    • The demand for services such as sanitation and electricity is more crucial the more people live in an area

    • Public services, such as transportation, operate more effectively in high-population areas

  • However, this tendency is not always applicable

    • Urban slums and squatter settlements, though high in population, do not have adequate access to government services

Impacts on the environment & natural resources

  • As populations increase, they have a greater impact on the landscape 

    • Locations with high population densities tend to have greater effects on the natural environment

  • Carrying capacity refers to the maximum population size the environment can support

    • Carrying capacity differs by environment. For example, an area with very fertile soil will have a higher carrying capacity than an area with limited agricultural land

population-and-resources-2
Two different scenarios showing population response to carrying capacity
  • Overpopulation occurs when there are not sufficient resources in a given area to support the population

Examiner Tips and Tricks

Each of the three free-response questions on the exam asks you to apply your knowledge of geographic concepts, processes, or models to an authentic real-world situation. The first free-response question will not include a stimulus. The second question contains one stimulus, in the form of a graph, chart, map, image, or infographic. The third question contains two stimuli and will ask you to compare them. The two stimuli will often show opposite phenomena or data at different scales.

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Kristin Tassin

Author: Kristin Tassin

Expertise: Geography Content Creator

Kristin is a high school educator with 10+ years of experience teaching AP Human Geography, World History, and US Government. She holds a Ph.D. in History and has published articles in leading journals. Fluent in Arabic and Turkish, Kristin is also an exam grader and active volunteer in history education initiatives.

Bridgette Barrett

Author: Bridgette Barrett

Expertise: Geography Lead

After graduating with a degree in Geography, Bridgette completed a PGCE over 25 years ago. She later gained an MA Learning, Technology and Education from the University of Nottingham focussing on online learning. At a time when the study of geography has never been more important, Bridgette is passionate about creating content which supports students in achieving their potential in geography and builds their confidence.