Developing Countries

In AP Human Geography, developing countries are nations with lower levels of industrialization, lower per capita income, and lower Human Development Index (HDI) scores than developed countries, often facing rapid population growth, rural-to-urban migration, and dependence on agriculture or low-wage manufacturing.

Verified for the 2027 AP Human Geography examLast updated June 2026

What are Developing Countries?

Developing countries are nations with lower industrialization, lower income per capita, and lower HDI scores compared to developed countries. They tend to sit in the early or middle stages of the demographic transition model, with higher fertility rates, younger populations, and faster growth. Many face gaps in infrastructure, education, and healthcare, which shape everything from where people live to what jobs exist.

Here's the thing that makes this term so powerful on the AP exam. "Developing country" isn't one topic. It's a lens the CED applies across at least four units. In Unit 2 it explains wide-based population pyramids and high rates of natural increase. In Unit 5 it's where the Green Revolution played out (EK SPS-5.D.1). In Unit 6 it's where the fastest urbanization is happening, often outpacing infrastructure. In Unit 7 it's the destination for outsourced manufacturing, special economic zones, and the lower-paying end of the international division of labor (EK PSO-7.A.6). When you see the term, ask which of these patterns the question is really testing.

Why Developing Countries matter in AP Human Geography

This term threads through Units 2, 5, 6, and 7. In Unit 2, learning objectives 2.5.A and 2.8.A use developing countries to explain the demographic transition and how expanding education and employment for women lowers fertility (EK SPS-2.B.1). In Unit 5, LO 5.5.A asks you to explain the Green Revolution's consequences specifically "in the developing world." In Unit 6, LO 6.1.A and 6.7.A cover why developing-world cities are growing fastest and why infrastructure often can't keep up. In Unit 7, LOs 7.4.A, 7.6.A, and 7.7.A cover how economic restructuring moved manufacturing jobs to newly industrialized and developing countries, and how microloans and workforce changes affect women there. If you can describe what a developing country looks like demographically, agriculturally, urbanly, and economically, you've basically built a master key for half the course.

How Developing Countries connect across the course

Human Development Index (HDI) (Unit 7)

HDI is the measuring stick that puts the "developing" in developing countries. It combines income, education, and life expectancy into one score, so a low HDI is the data-backed way to say a country is still developing rather than just eyeballing it.

The Demographic Transition Model (Unit 2)

Developing countries typically sit in Stage 2 or 3 of the DTM, where death rates have dropped but birth rates haven't caught up yet. That gap produces rapid natural increase and the wide-based population pyramids you'll be asked to interpret.

The Green Revolution (Unit 5)

The Green Revolution brought high-yield seeds, chemicals, and machinery specifically to the developing world (think India and Mexico). The CED wants you to argue both sides, more food and fewer famines, but also environmental damage and debt for small farmers.

Changes as a Result of the World Economy (Unit 7)

When core countries deindustrialized, manufacturing didn't disappear, it relocated. Developing countries gained factory jobs through special economic zones and export-processing zones, but on the lower-paying end of the international division of labor (EK PSO-7.A.6).

Are Developing Countries on the AP Human Geography exam?

This term shows up everywhere because it's a setting, not just a vocab word. Multiple-choice stems regularly ask about patterns "in developing countries," like which demographic change follows increased female education or which push factor drove rural-to-urban migration in the late 20th century. The free-response section uses it the same way. The 2018 FRQ opened with UN data showing women make up one-third to one-half of agricultural laborers in developing countries, then asked about gender and development. The 2022 SAQ gave a table of urbanization indicators (percent urban, access to safe drinking water) and expected you to read the developed/developing gap in the data. Your job is never just to define the term. You have to explain a process, like why fertility falls as women gain education, or why cities grow faster than their infrastructure, using developing countries as the evidence.

Developing Countries vs Newly Industrialized Countries (NICs)

All NICs were developing countries, but not all developing countries are NICs. A newly industrialized country (think Mexico, Brazil, or the Asian Tigers historically) has already attracted significant manufacturing and is climbing the economic ladder fast. "Developing country" is the broader umbrella, including low-income agricultural economies that haven't industrialized much at all. The CED treats NICs as the places gaining the jobs that core regions lost through outsourcing (EK PSO-7.A.5).

Key things to remember about Developing Countries

  • Developing countries have lower industrialization, lower per capita income, and lower HDI scores than developed countries.

  • Demographically, developing countries usually sit in Stage 2 or 3 of the demographic transition model, with high fertility, young populations, and rapid natural increase.

  • The Green Revolution targeted the developing world with high-yield seeds, chemicals, and mechanization, raising food supply but creating environmental and economic problems.

  • Developing-world cities are urbanizing faster than anywhere else, often faster than infrastructure like safe drinking water and sanitation can expand.

  • In the world economy, developing countries hold the lower-paying jobs in the international division of labor, often inside special economic zones and export-processing zones.

  • As women in developing countries gain education and economic opportunities, fertility rates fall, which is one of the most-tested cause-and-effect chains in the course.

Frequently asked questions about Developing Countries

What is a developing country in AP Human Geography?

A developing country is a nation with lower industrialization, lower income per capita, and a lower Human Development Index (HDI) than developed countries. On the exam, it signals patterns like high fertility, rapid urbanization, and reliance on agriculture or low-wage manufacturing.

Is 'developing country' the same as 'periphery country'?

They overlap heavily but come from different frameworks. Developing/developed describes a country's level of economic and human development (often measured by HDI), while periphery comes from world-systems theory and describes a country's position in the global economy. Most periphery countries are developing, but the terms answer different questions.

Are all developing countries in Stage 2 of the demographic transition model?

No. Many are in Stage 3, where fertility is already falling as education and contraception access spread, and some are approaching Stage 4. Don't assume every developing country has explosive population growth; check the data the question gives you.

Why are cities in developing countries growing so fast?

Rural push factors (limited farmland, agricultural mechanization, poverty) combine with urban pull factors (jobs, services) to drive massive rural-to-urban migration, on top of high natural increase. The 2022 SAQ tested exactly this, showing how urban growth often outpaces access to safe drinking water and sanitation.

How did the Green Revolution affect developing countries?

It dramatically increased food supply through high-yield seeds, fertilizers, and mechanization, helping countries like India avoid famine. But it also caused soil and water degradation, reduced biodiversity, and pushed small farmers into debt, which is why the CED asks you to explain both positive and negative consequences.