The 1980 Census of Population and Housing is the 20th decennial enumeration of the United States. The inquiries stretching over the years since 1790 reflect the changing interests and data needs of the country, its people, government, and economy. Emphasis has moved from detailed personal facts about individuals to concern about data on housing, employment, income, transportation, ethnicity, education, and migration that can be used for planning and funding at all levels of society, from the neighborhood to the Nation.