---
title: "Population Growth — AP Human Geography Definition & Guide"
description: "Population growth is the increase in people in a place, driven by fertility, mortality, and migration. It anchors Unit 2 and links to agriculture, cities, and industry."
canonical: "https://fiveable.me/ap-hug/key-terms/population-growth"
type: "key-term"
subject: "AP Human Geography"
---

# Population Growth — AP Human Geography Definition & Guide

## Definition

Population growth refers to the increase in the number of individuals in a population, often measured as a percentage over time. This phenomenon is influenced by factors such as birth rates, death rates, immigration, and emigration, impacting economic development, resource consumption, and social structures across regions.

## Related Study Guides

- [2.3 Population Composition](/ap-hug/unit-2/population-composition/study-guide/P8onPXMXxlnZzpQ3op8E)
- [6.2 Cities Across the World](/ap-hug/unit-6/cities-across-world/study-guide/QAwLNSgI03JPsEeMON7L)
- [5.12 Women in Agriculture](/ap-hug/unit-5/women-agriculture/study-guide/ewq7s330zT3dMxfDmBAj)
- [7.1 The Industrial Revolution](/ap-hug/unit-7/industrial-revolution/study-guide/gpQFb9giCZvhcGtFh6YD)
- [2.2 Consequences of Population Distribution](/ap-hug/unit-2/population-distribution/study-guide/nqWym0TMKty6mpptr2Ww)
- [5.5 The Green Revolution](/ap-hug/unit-5/green-revolution/study-guide/p227kJki0IrxMhcz5WFW)

## Review

### Related Terms

- [Carrying Capacity](/ap-hug/key-terms/carrying-capacity): The maximum population size that an environment can sustainably support without degrading resources.
- [Natural Increase](/ap-hug/key-terms/natural-increase): The difference between the number of live births and the number of deaths in a population, excluding migration.
- [Fertility Rate](/ap-hug/key-terms/fertility-rate): The average number of children born to a woman over her lifetime, which directly affects population growth.

### Key Facts

- Population growth can lead to increased competition for resources, potentially resulting in shortages of food, water, and housing.
- Urban areas often experience higher population growth rates due to migration from rural areas seeking better economic opportunities.
- High population growth can place significant stress on infrastructure, healthcare systems, and educational institutions.
- The demographic transition model illustrates how population growth patterns change as countries develop economically and socially.
- Women’s education and access to reproductive health services are crucial factors influencing fertility rates and population growth.

### How does population growth affect resource distribution and urbanization patterns?

Population growth significantly influences resource distribution by increasing demand for essentials like food, water, and housing. As more people migrate to urban areas for better opportunities, cities expand rapidly, often leading to overcrowded conditions. This urbanization can strain existing infrastructure and services, making it critical for city planners to adapt to changing demographic trends.

### Discuss the implications of the demographic transition model in understanding population growth in different regions.

The demographic transition model outlines the stages of population growth that societies typically experience as they develop. Initially, high birth and death rates characterize pre-industrial societies, leading to slow growth. As a region industrializes and healthcare improves, death rates decline while birth rates remain high, resulting in rapid population growth. Eventually, as societies advance further with increased education and access to contraception, birth rates decline, stabilizing the population. Understanding these stages helps policymakers anticipate challenges related to growth and resource management.

### Evaluate the potential consequences of unchecked population growth on global sustainability efforts.

Unchecked population growth poses significant challenges to global sustainability efforts. It exacerbates resource depletion as more people rely on finite resources like water and arable land. Additionally, increased waste generation and greenhouse gas emissions from larger populations threaten environmental stability. Consequently, addressing population growth through policies that promote education, family planning, and sustainable practices is vital for balancing human needs with environmental preservation.