Internal Migration in AP Human Geography

A move inside one country still counts as migration

A common assumption is that migration means crossing a border, and that moving across your own country is just "relocating." Geographers count both. If someone moves permanently from a small town in one state to a big city in another, that's internal migration, and it changes population patterns the same way international moves do.

The second mix-up runs the other way. The course lists internal migration as a type of voluntary migration in Topic 2.11, Forced and Voluntary Migration. Some internal moves are forced, though. People pushed out of their homes by war, violence, or disaster who stay inside their own country are internally displaced persons (IDPs), and the course groups them under forced migration with refugees and asylum seekers. Use the border to sort them. An IDP stays inside the country, while a refugee has crossed an international border.

Interregional moves vs. rural-to-urban moves

Internal migration can be described in several ways, and the categories sometimes overlap. Two of the most common are interregional and rural-to-urban movement, though people also move from one city to another or between places within the same region. A scenario question may describe a migration pattern without naming it.

• Interregional migration is movement from one region of a country to another. In the U.S., the Great Migration moved millions of African Americans from the rural South to Northern and Western cities during the 1900s, and later decades saw a large shift from the Rust Belt toward the Sun Belt.
• Rural-to-urban migration is the move from farms and villages to cities. It drives urbanization in developing countries today. China is a major case, where hundreds of millions of rural workers have moved to coastal manufacturing cities since economic reforms began.

The two can describe the same move. A rural Southerner who moved to Chicago during the Great Migration made a move that was both interregional and rural-to-urban.

Most of these moves are pulled by jobs and wages, with push factors like falling farm work or closing factories in the origin area. Counterurbanization, the move from cities out to rural areas or small towns, is also internal migration, running in the opposite direction.

What internal migration does to the places on both ends

Unit 2: Population and Migration asks why people end up where they are and what changes when they move, so internal migration reaches past Topic 2.11 into Topics 2.1, 2.3, and 2.12. In Topic 2.1, internal moves are a human factor that reshapes population distribution, often concentrating people in a few urban regions.

In Topic 2.3, the sending and receiving places end up with different age structures. Migrants tend to be young adults. A rural area that loses them ends up with a population pyramid that's narrow in the working ages and heavy at the top, while the receiving city bulges in the 20-to-40 range. If the migrants are mostly men or mostly women, sex ratios get skewed in both places.

Topic 2.12 asks for political, economic, and cultural effects.

Political effects show up in the U.S., where seats in the House are reapportioned after each census, so states gaining internal migrants can gain representation. Economic effects include labor shortages in origin areas, money sent home to family, and pressure on housing and services in fast-growing cities. Cultural effects show up when migrants carry their culture with them. The Great Migration helped bring Southern blues and foodways to Chicago and other Northern cities.

Classifying a move from a scenario, map, or data set

Say a question describes a family moving from a farm town to the state capital for factory jobs and asks what kind of migration that is. Look for clues like "within the same country" or two places in the same state. Then check for force. A voluntary move for work within the same country is internal migration, and a move forced by conflict or disaster that stays in the country is an IDP case. Don't confuse it with guest worker migration (crossing a border on a temporary work arrangement) or chain migration (following relatives who moved earlier, which can happen internally or internationally).

On the free-response section, internal migration fits naturally in Question 2 (One-stimulus question) or Question 3 (Two-stimuli question), for example a map of interregional flows or two population pyramids for a rural province and its capital city. A strong answer names the specific type of internal move, ties it to a push or pull factor, and explains an effect. When the prompt asks about scale, identify the relevant scale and explain the pattern or effect at that scale. You might show how one country's rural-to-urban flow changes the national urban share while emptying out working-age groups in particular villages.