Chain migration follows people who already made the trip

Each arrival made the next one easier, so migrants from one origin gathered in one destination.

Personal ties pull the next migrant along

Chain migration happens when migrants from one origin follow earlier migrants they know to the same destination. In a 1964 study of Italian emigration, John and Leatrice MacDonald defined it as movement in which newcomers learn of opportunities and get transport, housing and work through relationships with people who migrated before them. The chain is the network of relatives and friends, and each link reaches back to the home village.

A bed, a job and a letter cut the cost

Moving to a strange country is risky because the newcomer lacks information. An uncle who already lives there removes most of that risk. He knows which employers hire, which streets have cheap rooms and which forms to fill in. Money sent home as remittances often pays for the next ticket. In effect the network lowers the friction of distance, so a far city with relatives can attract more migrants than a near city with none. Networks also shape the origin, because a few villages can send most of their young adults to one city abroad while nearby villages send almost none.

Family reunification law keeps the chain going

Governments can build chains into immigration rules. The United States Immigration and Nationality Act of 1965 ended the national origins quota system and made family ties a main basis for admission, so each new citizen could sponsor close relatives. Europe shows the same pattern: West Germany recruited guest workers, many from Turkey, until 1973, and families then joined the workers who stayed. In American politics the phrase chain migration has become contested, so exam answers should use it as a neutral geographic term.

Ethnic enclaves are the mark the chain leaves

Because migrants follow people they know, they settle near them. The result is an ethnic enclave, a neighborhood with a high share of one group and its shops, churches, newspapers and language. Chinatown in San Francisco and the old Little Italy districts of the Northeast grew this way. Enclaves carry culture from origin to destination, which is relocation diffusion in practice. In the concentric zone model, such neighborhoods first appear in the zone in transition near downtown.

Many movers on one route, not one mover on many routes

Students often swap chain migration with step migration. Step migration follows one migrant through a series of moves up the urban hierarchy. Chain migration follows many migrants along one corridor, often in a single jump, each guided by someone already there. A second slip is to call any family move chain migration. The test is the link: the newcomer chose this destination because a relative or neighbor from home had already settled there.

How the exam asks about chain migration

Free response questions usually ask you to explain how chain migration produces a spatial pattern, then to describe an effect on the origin or the destination. A full answer names the network, names the enclave it creates and adds one consequence, such as remittances to the home village or the growth of ethnic businesses. Review the Unit 2 page for the rest of the migration topics, then use a multiple choice test maker on your notes to drill the voluntary migration types.

Last updated: 2026-10-03 · Written with AI assistance and reviewed before publishing.