Migration regions and population redistribution

Area of Science:

• Demography
• Human Geography
• Sociology

Background:

• Understanding regional population dynamics is crucial for policy and resource allocation.
• Previous studies have identified broad trends in U.S. internal migration, but regional typologies require regular updates.
• The 1970s and 1980s represented a period of significant demographic shifts within the United States.

Purpose of the Study:

• To define and characterize U.S. migration regions based on state-level net interchange patterns for 1975-1980.
• To identify key states influencing population redistribution.
• To assess the stability and validity of the defined migration typology across different demographic groups and time periods.

Main Methods:

• Utilized gross and net migration flow data among U.S. states for the period 1975-1980.
• Developed a migration typology classifying states into regions based on similar net interchange patterns.
• Compared the 1975-1980 typology with data from 1965-1970 and 1980-1985 to assess temporal validity.

Main Results:

• A distinct migration typology emerged, characterized by a population outflow from a northeastern 'core' to other regions and an inflow into a northwestern 'periphery'.
• Florida and California were identified as significant states in redistributing the U.S. population.
• The defined migration regions and patterns were consistent across all age groups and racial/ethnic categories.

Conclusions:

• The study successfully defined a robust migration typology for the U.S. based on 1975-1980 data.
• The identified regional patterns, including the core-periphery dynamic and the role of specific states, remained meaningful over time despite migration volatility.
• This typology provides a valuable framework for analyzing and understanding long-term population redistribution trends in the United States.