Source: U. S. Census Bureau, 2000 Census of Population and Housing, Demographic Profile. Updated every 10 years. http://factfinder.census.gov
Definitions:
Persons were asked to report whether they sometimes or always spoke a language other than English at home. People who knew languages other than English but did not use them at home, who only used them elsewhere, or whose usage was limited to a few expressions or slang were excluded.
Most people who reported speaking a language other than English at home also speak English. Separate questions identified the level of ability to speak English, and the specific language spoken at home.
Tabulations of language spoken at home include only the responses of persons 5 years old and over. The percentage shown is obtained by dividing the nnumber of persons speaking a language other than English at home by the total number of persons 5 years and over.
Scope and Methodology:
These data are collected on the census long form. Roughly one in every six households received this sample questionnaire. The data are estimates and are subject to sampling variability. Information on the accuracy of data and sampling is in Chapter 8 of Summary File 3 documentation.
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