This report presents statistics on the movement of persons 5 years old and over between State economic areas during the period 1965 to 1970. The 510 State economic areas into which the United States is divided are subdivisions of States, consisting of single counties or groups of counties having similar social and economic characteristics. The data were obtained from a question on residence on April 1, 1965, asked in the 1970 Census of Population, which was conducted as of April 1, 1970.

The text consists of an introduction and four appendices which appear after the tables.

Content of the Tables

• Table 1 – general mobility status of the 1970 population 5 years old and over in terms of movement within and to each State economic area (SEA)
  
• Table 2 – number of inmigrants (from other parts of the United States) and outmigrants (to other parts of the United States) for each SEA according to age and sex
  
• Table 3 – number of inmigrants and outmigrants for Negro migrants to and from SEA's having a Negro population of 25,000 or more in 1970
  
• Table 4 – 510-by-510 matrix showing SEA of residence in 1965 by SEA of residence in 1970 for persons 5 years old and over moving between SEA's
  
• Table 5 – number of Negro inmigrants 5 years old and over to each of the SEA's as shown in table 3, according to State of residence in 1965 and whether 1965 residence was in a metropolitan or nonmetropolitan SEA.

Appendices

• Appendix A. Area Classifications
  
• Appendix B. Definitions and Explanations of Subject Characteristics
  
• Appendix C. Accuracy of the Data
  
• Appendix D. Publication and Computer Summary Tape Program

Sample size. The statistics presented in this report are based on a 15-percent sample inflated to represent the total population.