Internal migration is the permanent or semi-permanent movement of people within the borders of a single country, such as moving from a rural area to a city or from one region to another. The AP CED classifies it as a type of voluntary migration (EK IMP-2.D.2), usually driven by economic pull factors.
Internal migration is when people move within their own country instead of crossing an international border. Think of someone leaving a declining factory town in one region for a booming metro area in another, or a farm family moving to the nearest big city for work. Same country, new address. The CED lists internal migration as one of the voluntary migration types you need to know for Topic 2.11, alongside transnational, transhumance, chain, step, guest worker, and rural-to-urban migration (EK IMP-2.D.2).
Two big patterns fall under this umbrella. Interregional migration is movement between regions of a country (like the U.S. Rust Belt to Sun Belt shift), and rural-to-urban migration is the move from countryside to city that fuels urbanization, especially in developing countries. Most internal migration is voluntary and economically motivated, but it can also be forced. People displaced within their own country by war or disaster are called internally displaced persons (IDPs), and the CED groups them with refugees and asylum seekers under forced migration (EK IMP-2.D.1).
Internal migration lives in Unit 2 (Population and Migration Patterns and Processes) and directly supports learning objective 2.11.A, which asks you to describe types of forced and voluntary migration. But it ripples through the rest of the unit too. When millions of people move from farms to cities, the distribution of population changes (2.1.A), the age structure and sex ratios of both sending and receiving regions shift (2.3.A), and the political, economic, and cultural effects of migration kick in (2.12.A). A rural village that loses its young workers ends up with a top-heavy population pyramid, while the receiving city's pyramid bulges in the working-age cohorts. That's internal migration showing up on a graph you'll actually be asked to read.
Keep studying AP Human Geography Unit 2
Interregional Migration (Unit 2)
Interregional migration is internal migration between regions of the same country. The classic AP example is Americans moving from the Rust Belt to the Sun Belt. If a question describes movement from one region to another without crossing a border, it's internal.
Push and Pull Factors (Unit 2)
Internal migration runs on the same engine as international migration. Push factors (a dying industrial economy, drought) shove people out of one region, and pull factors (jobs, amenities) draw them somewhere else inside the same country.
Urbanization (Unit 6)
Rural-to-urban migration is the internal migration pattern behind the explosive city growth in Unit 6. The megacities of the developing world grow largely because millions of people move from the countryside, not because of natural increase alone.
Age Sex Pyramid (Unit 2)
Internal migration is selective. Young working-age adults move most, so sending regions develop pyramids hollowed out in the middle while receiving cities show a working-age bulge. Reading those distortions on a pyramid is a classic AP skill.
Internal migration usually shows up in MCQ scenario stems where you have to classify a move. A typical stem describes a person moving 'from a declining industrial region to a growing metropolitan area within the same country' and asks which migration type it is. The giveaway phrase is 'within the same country.' Be ready to distinguish it from guest worker migration (crossing a border on a temporary contract, like a Brazilian worker in Japan) and chain migration (relatives following earlier migrants to the same place). On FRQs, internal migration supports questions about the effects of migration (2.12), like explaining how rural-to-urban movement changes population composition or strains urban services. You won't just define it; you'll classify scenarios and explain consequences at different scales.
The border is the whole difference. Internal migration stays within one country's boundaries, while international migration crosses them. This matters for terminology too. Someone forced to flee within their own country is an internally displaced person (IDP), but the moment they cross a border they become a refugee or asylum seeker. The AP exam loves testing that distinction.
Internal migration is movement within a single country, and the CED lists it as a type of voluntary migration in EK IMP-2.D.2.
Rural-to-urban migration and interregional migration (like Rust Belt to Sun Belt) are the two most-tested forms of internal migration.
If forced movement stays inside national borders, the people are internally displaced persons (IDPs), not refugees.
Internal migration is age-selective, so it distorts population pyramids in both sending regions (fewer young adults) and receiving cities (working-age bulge).
On MCQs, the phrase 'within the same country' is the signal that the answer involves internal migration, not transnational or guest worker migration.
Internal migration is the movement of people within one country, such as moving from a rural area to a city or between regions. The CED classifies it as a voluntary migration type in Topic 2.11 (EK IMP-2.D.2).
No. Most internal migration is voluntary and economically driven, but people forced to move within their country by conflict or disaster are internally displaced persons (IDPs), which the CED counts as forced migration under EK IMP-2.D.1.
Interregional migration is a subtype of internal migration. Internal migration is any move within a country, while interregional specifically means moving between regions, like the U.S. shift from the Rust Belt to the Sun Belt.
No. IDPs flee their homes but stay inside their country's borders, while refugees cross an international border. The exam frequently tests this distinction, so check whether a border was crossed.
Common exam examples include rural-to-urban migration in developing countries, the Great Migration of African Americans from the rural South to northern cities, and modern moves from declining industrial regions to growing metro areas within the same country.
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