Title
Demographic Components of Change File of the United States, States and Counties, 1980-1990 [electronic resource] United States. Bureau of the Census
Summary
The Population Estimates Program (PEP) produces for counties each year: total population estimates and county estimates by age, sex, race, and Hispanic origin. The release of total population estimates in the winter also includes demographic components of change. In the summer, the PEP releases the estimates by age, sex, race, and Hispanic origin. The reference date for county population estimates is July 1.Cf: http://doi.org/10.3886/ICPSR25361.v1